Russian forces have intensified cross-border assaults toward Myropillia in Sumy Oblast since early April 2026, capturing nearby Myropilske and advancing to the eastern outskirts amid the ongoing Sumy frontline offensive, but Ukrainian defenses—including the 21st Mechanized Brigade—have repelled mechanized assaults and launched counterattacks, preventing a breakthrough. As of April 29, Institute for the Study of War assessments report no confirmed Russian advances in northern Sumy despite continued shelling and small-group infiltrations, with supply challenges and manpower limitations hampering deeper penetrations. Traders' 84.5% implied probability on "No" reflects this slow grind and defensive stalemate, viewing the remaining month before May 31 as insufficient for full capture absent major escalation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill Russia capture Myropillia by May 31?
Will Russia capture Myropillia by May 31?
The intersection will be considered captured if any part of the intersection 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 specified 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.
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.
Once Russia captures the intersection, any subsequent loss of control will not be considered towards the resolution of this market.
Intersection Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/Myropillia1.png
Intersection Location in Myropillia: https://polymarket-upload.s3.us-east-2.amazonaws.com/Myropillia2.png
Myropillia Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/Myropillia3.png
Location on Google Maps: https://maps.app.goo.gl/rxYpAiXxoUwi8tCbA
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.
Market Opened: Apr 20, 2026, 3:38 PM ET
Resolver
0x65070BE91...The intersection will be considered captured if any part of the intersection 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 specified 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.
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.
Once Russia captures the intersection, any subsequent loss of control will not be considered towards the resolution of this market.
Intersection Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/Myropillia1.png
Intersection Location in Myropillia: https://polymarket-upload.s3.us-east-2.amazonaws.com/Myropillia2.png
Myropillia Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/Myropillia3.png
Location on Google Maps: https://maps.app.goo.gl/rxYpAiXxoUwi8tCbA
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.
Resolver
0x65070BE91...Russian forces have intensified cross-border assaults toward Myropillia in Sumy Oblast since early April 2026, capturing nearby Myropilske and advancing to the eastern outskirts amid the ongoing Sumy frontline offensive, but Ukrainian defenses—including the 21st Mechanized Brigade—have repelled mechanized assaults and launched counterattacks, preventing a breakthrough. As of April 29, Institute for the Study of War assessments report no confirmed Russian advances in northern Sumy despite continued shelling and small-group infiltrations, with supply challenges and manpower limitations hampering deeper penetrations. Traders' 84.5% implied probability on "No" reflects this slow grind and defensive stalemate, viewing the remaining month before May 31 as insufficient for full capture absent major escalation.
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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