The Philadelphia Phillies enter the late-August series at T-Mobile Park with a 73-58 record and recent nine-game win streak, positioning them as the stronger club against the 62-69 Seattle Mariners. Philadelphia’s offense and bullpen depth have carried momentum, while starter Zack Wheeler seeks to stabilize after a higher ERA stretch. Seattle counters with home-field advantages and Logan Gilbert’s strong home quality-start streak, plus recent series wins that keep faint playoff hopes alive. Roster health, bullpen usage over the three-game set, and how the Mariners’ offense fares against Philadelphia’s pitching staff represent the primary variables that could shift outcomes in either direction.
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Philadelphia Phillies – Seattle Mariners
Moneyline
$361K Vol.
Spreads
$23.0K Vol.
Totals
$354K Vol.
Will there be a run in the first inning?
$41.0K Vol.
Extra Innings
$0 Vol.
This market will resolve to "Philadelphia Phillies" if the Philadelphia Phillies win the game.
This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.
If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.
The primary resolution source for this market is the official final 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 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Market Opened: Aug 18, 2026, 9:00 AM ET
Resolution Source
https://www.mlb.com/Resolver
0x65070BE91...Philadelphia Phillies – Seattle Mariners
Moneyline
$361K Vol.
Spreads
$23.0K Vol.
Totals
$354K Vol.
Will there be a run in the first inning?
$41.0K Vol.
Extra Innings
$0 Vol.
This market will resolve to "Philadelphia Phillies" if the Philadelphia Phillies win the game.
This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.
If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.
The primary resolution source for this market is the official final 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 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Market Opened: Aug 18, 2026, 9:00 AM ET
Resolution Source
https://www.mlb.com/Resolver
0x65070BE91...The Philadelphia Phillies enter the late-August series at T-Mobile Park with a 73-58 record and recent nine-game win streak, positioning them as the stronger club against the 62-69 Seattle Mariners. Philadelphia’s offense and bullpen depth have carried momentum, while starter Zack Wheeler seeks to stabilize after a higher ERA stretch. Seattle counters with home-field advantages and Logan Gilbert’s strong home quality-start streak, plus recent series wins that keep faint playoff hopes alive. Roster health, bullpen usage over the three-game set, and how the Mariners’ offense fares against Philadelphia’s pitching staff represent the primary variables that could shift outcomes in either direction.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedBeware of external links.
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