Russian forces continue limited cross-border offensive operations in northern Sumy Oblast as part of efforts to establish a buffer zone along the international border, with assessments through mid-August 2026 showing no confirmed territorial gains toward Sumy city itself. Ukrainian counterattacks and multi-layered defenses have constrained Russian advances in the area, where fighting remains localized and low-intensity compared to other fronts. Recent Russian claims of settlements seized have often lacked independent verification, while Ukrainian strikes and repositioning have further slowed momentum. Trader sentiment on capture timelines reflects these battlefield constraints, historical patterns of incremental border fighting, and the absence of large-scale force redeployments that would signal a major push on the regional center.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWill Russia capture Sumy by...?
$828,779 Vol.
March 31, 2027
8%
$828,779 Vol.
March 31, 2027
8%
The railroad station will be considered captured if any part of the train station icon 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 March 31, 2027, 11:59 PM ET, 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 if it is shaded red in the ISW map. An announcement of a negotiated settlement which gives Russia de jure control will not qualify. Actual control must be established.
Once Russia captures the railroad station, any subsequent loss of control will not be considered towards the resolution of this market.
Train Station Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/sumy+train+station.jpg
Sumy Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/sumy+location.jpg
Location on Google maps: https://maps.app.goo.gl/vd3fmfpUTB6BooEb9
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 which will not be considered.
Market Opened: Dec 23, 2025, 5:31 PM ET
Resolver
0x65070BE91...The railroad station will be considered captured if any part of the train station icon 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 March 31, 2027, 11:59 PM ET, 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 if it is shaded red in the ISW map. An announcement of a negotiated settlement which gives Russia de jure control will not qualify. Actual control must be established.
Once Russia captures the railroad station, any subsequent loss of control will not be considered towards the resolution of this market.
Train Station Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/sumy+train+station.jpg
Sumy Location: https://polymarket-upload.s3.us-east-2.amazonaws.com/sumy+location.jpg
Location on Google maps: https://maps.app.goo.gl/vd3fmfpUTB6BooEb9
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 which will not be considered.
Resolver
0x65070BE91...Russian forces continue limited cross-border offensive operations in northern Sumy Oblast as part of efforts to establish a buffer zone along the international border, with assessments through mid-August 2026 showing no confirmed territorial gains toward Sumy city itself. Ukrainian counterattacks and multi-layered defenses have constrained Russian advances in the area, where fighting remains localized and low-intensity compared to other fronts. Recent Russian claims of settlements seized have often lacked independent verification, while Ukrainian strikes and repositioning have further slowed momentum. Trader sentiment on capture timelines reflects these battlefield constraints, historical patterns of incremental border fighting, and the absence of large-scale force redeployments that would signal a major push on the regional center.
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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