Russian forces have conducted sustained offensive operations around Kostiantynivka in Donetsk Oblast since late 2025, using small-unit infiltrations to create contested gray zones inside the city while Ukrainian defenders maintain positions in northern sectors and conduct targeted clearances. Reports through September 2026 indicate continued Russian assaults on the Kostiantynivka front amid high casualties on both sides, with logistics strained for Ukrainian units and Russian claims of partial control disputed by Kyiv and assessments from the Institute for the Study of War. Full municipal capture remains unresolved as of mid-September, with resolution criteria tied to comprehensive mapping of Russian control by the September 30 deadline. Trader sentiment reflects uncertainty over whether incremental advances will consolidate into complete territorial dominance within the narrow remaining window.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill Russia capture all of Kostyantynivka by...?
$1,736,754 Vol.
September 30
2%
October 31
7%
December 31
29%
$1,736,754 Vol.
September 30
2%
October 31
7%
December 31
29%
Kostyantynivka will be considered captured if the entirety of the municipality is shaded red on the ISW map (https://storymaps.arcgis.com/stories/36a7f6a6f5a9448496de641cf64bd375) by the resolution date. If the area is not shaded red by the resolution date, the market will resolve to “No”.
For any change on the ISW map to qualify for this market’s resolution, the relevant shading indicating Russian control must persist through the next full ISW daily update cycle. If ISW skips a day, shading must persist until the next finalized ISW update is published, regardless of the date. Any continuous shading which reflects either “Assessed Russian Control”, “Assessed Russian Advance In Ukraine”, or “Assessed Russian Gains in the Past 24 Hours” will qualify. “Assessed Russian Infiltration Areas in Ukraine” will not qualify.
The territory of the municipality is shaded in light grey and is distinguished from bordering municipalities with a darker grey line. If all area within the municipality is shaded in red, however, the shading does not precisely match up with the border such that there is a tiny amount of grey along the border of the city, this will still qualify for a "Yes" resolution.
Once Russia captures the entirety of the specified area, any subsequent loss of control will not be considered towards the resolution of this market.
Location on Google maps: https://maps.app.goo.gl/p9N3w6yRVfjx6cuZ8
The primary resolution source for this market will be the ISW Ukraine map. If the ISW map is rendered unavailable, information from DeepStateMap (https://deepstatemap.live/) may be used. If information from both the ISW and DeepStateMap are rendered permanently unavailable, a consensus of credible reporting may be used.
Note: Any temporary glitches or errors in the map will not be considered.
If Russia comes into control of this territory as a result of a negotiated settlement, this will qualify for a 'Yes' resolution, regardless of whether it is shaded red in the ISW map. An announcement of a negotiated settlement that gives Russia de jure control will not qualify. Actual control must be established.
Market Opened: Aug 11, 2026, 12:57 PM ET
Resolver
0x65070BE91...Kostyantynivka will be considered captured if the entirety of the municipality is shaded red on the ISW map (https://storymaps.arcgis.com/stories/36a7f6a6f5a9448496de641cf64bd375) by the resolution date. If the area is not shaded red by the resolution date, the market will resolve to “No”.
For any change on the ISW map to qualify for this market’s resolution, the relevant shading indicating Russian control must persist through the next full ISW daily update cycle. If ISW skips a day, shading must persist until the next finalized ISW update is published, regardless of the date. Any continuous shading which reflects either “Assessed Russian Control”, “Assessed Russian Advance In Ukraine”, or “Assessed Russian Gains in the Past 24 Hours” will qualify. “Assessed Russian Infiltration Areas in Ukraine” will not qualify.
The territory of the municipality is shaded in light grey and is distinguished from bordering municipalities with a darker grey line. If all area within the municipality is shaded in red, however, the shading does not precisely match up with the border such that there is a tiny amount of grey along the border of the city, this will still qualify for a "Yes" resolution.
Once Russia captures the entirety of the specified area, any subsequent loss of control will not be considered towards the resolution of this market.
Location on Google maps: https://maps.app.goo.gl/p9N3w6yRVfjx6cuZ8
The primary resolution source for this market will be the ISW Ukraine map. If the ISW map is rendered unavailable, information from DeepStateMap (https://deepstatemap.live/) may be used. If information from both the ISW and DeepStateMap are rendered permanently unavailable, a consensus of credible reporting may be used.
Note: Any temporary glitches or errors in the map will not be considered.
If Russia comes into control of this territory as a result of a negotiated settlement, this will qualify for a 'Yes' resolution, regardless of whether it is shaded red in the ISW map. An announcement of a negotiated settlement that gives Russia de jure control will not qualify. Actual control must be established.
Resolver
0x65070BE91...Russian forces have conducted sustained offensive operations around Kostiantynivka in Donetsk Oblast since late 2025, using small-unit infiltrations to create contested gray zones inside the city while Ukrainian defenders maintain positions in northern sectors and conduct targeted clearances. Reports through September 2026 indicate continued Russian assaults on the Kostiantynivka front amid high casualties on both sides, with logistics strained for Ukrainian units and Russian claims of partial control disputed by Kyiv and assessments from the Institute for the Study of War. Full municipal capture remains unresolved as of mid-September, with resolution criteria tied to comprehensive mapping of Russian control by the September 30 deadline. Trader sentiment reflects uncertainty over whether incremental advances will consolidate into complete territorial dominance within the narrow remaining window.
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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