Anton Shepp enters the first-round Roehampton Challenger matchup as the clear favorite due to his established ATP ranking near 490 and greater professional experience compared to 17-year-old Mark Ceban, who sits outside the top 2,000 on the ATP list despite a strong ITF junior ranking. Both players meet for the first time, with Shepp bringing a right-handed game honed through U.S. college tennis and consistent pro results. Ceban, a British prospect and recent junior national champion, benefits from home-soil support on the grass courts typical of the event, though his limited senior-level record leaves room for an upset. Recent form and any late adjustments to the draw or fitness will shape implied probabilities ahead of the August 17 contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated15h 19m 29s
Combos
This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to 'Anton Shepp' if Anton Shepp advances against Mark Ceban.
This market will resolve to 'Mark Ceban' if Mark Ceban advances against Anton Shepp.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to “Shepp” if Anton Shepp wins set 2. It will resolve to “Ceban” if Mark Ceban wins set 2.
If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official Challenger match statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under."
A super tie breaker is considered as one (1) set for total set markets.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to “Shepp” if Anton Shepp wins the first set. It will resolve to “Ceban” if Mark Ceban wins the first set.
If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official Challenger match statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Shepp" if Anton Shepp wins by 2 or more sets than Mark Ceban, based on the final completed score. Otherwise, it will resolve to "Ceban."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 23. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Mark Ceban and Anton Shepp in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Ceban" if Mark Ceban wins by 2 or more sets than Anton Shepp, based on the final completed score. Otherwise, it will resolve to "Shepp."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 24. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.Anton Shepp enters the first-round Roehampton Challenger matchup as the clear favorite due to his established ATP ranking near 490 and greater professional experience compared to 17-year-old Mark Ceban, who sits outside the top 2,000 on the ATP list despite a strong ITF junior ranking. Both players meet for the first time, with Shepp bringing a right-handed game honed through U.S. college tennis and consistent pro results. Ceban, a British prospect and recent junior national champion, benefits from home-soil support on the grass courts typical of the event, though his limited senior-level record leaves room for an upset. Recent form and any late adjustments to the draw or fitness will shape implied probabilities ahead of the August 17 contest.
This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to 'Anton Shepp' if Anton Shepp advances against Mark Ceban.
This market will resolve to 'Mark Ceban' if Mark Ceban advances against Anton Shepp.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
This market will resolve to 'Anton Shepp' if Anton Shepp advances against Mark Ceban.
This market will resolve to 'Mark Ceban' if Mark Ceban advances against Anton Shepp.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Market Opened: Aug 15, 2026, 7:05 PM ET
Volume
$46End Date
Aug 24, 2026Market Opened
Aug 15, 2026, 7:05 PM ETResolution Source
https://www.atptour.com/en/scores/currentResolver
0x65070BE91...15h 19m 29s
Combos
This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to 'Anton Shepp' if Anton Shepp advances against Mark Ceban.
This market will resolve to 'Mark Ceban' if Mark Ceban advances against Anton Shepp.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to “Shepp” if Anton Shepp wins set 2. It will resolve to “Ceban” if Mark Ceban wins set 2.
If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official Challenger match statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under."
A super tie breaker is considered as one (1) set for total set markets.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to “Shepp” if Anton Shepp wins the first set. It will resolve to “Ceban” if Mark Ceban wins the first set.
If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official Challenger match statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Shepp" if Anton Shepp wins by 2 or more sets than Mark Ceban, based on the final completed score. Otherwise, it will resolve to "Ceban."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 23. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Mark Ceban and Anton Shepp in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Ceban" if Mark Ceban wins by 2 or more sets than Anton Shepp, based on the final completed score. Otherwise, it will resolve to "Shepp."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 24. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official Challenger statistics.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official Challenger results.Anton Shepp enters the first-round Roehampton Challenger matchup as the clear favorite due to his established ATP ranking near 490 and greater professional experience compared to 17-year-old Mark Ceban, who sits outside the top 2,000 on the ATP list despite a strong ITF junior ranking. Both players meet for the first time, with Shepp bringing a right-handed game honed through U.S. college tennis and consistent pro results. Ceban, a British prospect and recent junior national champion, benefits from home-soil support on the grass courts typical of the event, though his limited senior-level record leaves room for an upset. Recent form and any late adjustments to the draw or fitness will shape implied probabilities ahead of the August 17 contest.
This market refers to the tennis match between Anton Shepp and Mark Ceban in the Roehampton, originally scheduled for August 17, 2026 at 5:00AM ET.
This market will resolve to 'Anton Shepp' if Anton Shepp advances against Mark Ceban.
This market will resolve to 'Mark Ceban' if Mark Ceban advances against Anton Shepp.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
This market will resolve to 'Anton Shepp' if Anton Shepp advances against Mark Ceban.
This market will resolve to 'Mark Ceban' if Mark Ceban advances against Anton Shepp.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Market Opened: Aug 15, 2026, 7:05 PM ET
Volume
$46End Date
Aug 24, 2026Market Opened
Aug 15, 2026, 7:05 PM ETResolution Source
https://www.atptour.com/en/scores/currentResolver
0x65070BE91...Anton Shepp enters the first-round Roehampton Challenger matchup as the clear favorite due to his established ATP ranking near 490 and greater professional experience compared to 17-year-old Mark Ceban, who sits outside the top 2,000 on the ATP list despite a strong ITF junior ranking. Both players meet for the first time, with Shepp bringing a right-handed game honed through U.S. college tennis and consistent pro results. Ceban, a British prospect and recent junior national champion, benefits from home-soil support on the grass courts typical of the event, though his limited senior-level record leaves room for an upset. Recent form and any late adjustments to the draw or fitness will shape implied probabilities ahead of the August 17 contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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Frequently Asked Questions