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Will Russia capture Sumy by...?

By PolySays EditorialUpdated Editorial method

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This market will resolve to “Yes” if, according to the ISW map, Russia captures the Sumy railroad station located on Pryvokzalna ploscha by September 30, 2025 at 11:59 PM ET.

Current leader

9.5%

10%

Largest 24h move+2.0 pp 24h
24h volume
$14.5K
Liquidity
$32.7K
Scheduled close

Top candidates

1 outcome

  • Will Russia capture Sumy by March 31, 2027?

    +2.0 pp 24h10%

Now Gained in 24h Lost in 24hChanges are in percentage points (pp).

Latest update

PlungePartly sourced

Russia attack in Sumy coincides with a 3-point Yes odds drop

The Yes side on Russia capturing Sumy by March 31, 2027 fell from 10.5% to 7.5% between July 8 and July 14, 2026. BBC reported overnight Russian strikes in Sumy on July 15, but the article does not establish a direct link to the market move.

Yes: 11% → 7%

-3.0 pp
Sources and full timeline

Story so far

Recently updated

The Yes side on Russia capturing Sumy by March 31, 2027 fell from 10.5% to 7.5% between July 8 and July 14, 2026. BBC reported overnight Russian strikes in Sumy on July 15, but the article does not establish a direct link to the market move.

A sourced or deterministic market update is available.

Known catalysts

Supported by the sources below

  • No catalyst has been confirmed yet.

Unresolved questions

What the evidence doesn’t settle

  • Watch for verified battlefield reporting around Sumy, any territorial-control updates, and whether additional frontline or diplomatic news changes expectations again.

People and institutions to watch

Nothing specific is being tracked yet.

Source trail

Public sources opened for this story

Odds chart

Candidate probability over time

Living timeline

Significant updates

  1. The market’s Yes probability dropped 3.0 points, from 0.105 to 0.075, over the July 8, 2026 16:30 UTC to July 14, 2026 13:22 UTC window. A BBC report published July 15, 2026 said Russia attacked sites in Odesa and Sumy overnight, while Ukraine struck Russian vessels in the Black Sea. That news shows continued fighting around Sumy, but it does not confirm why the market moved or prove the drop was caused by this specific report. The safest read is that fresh combat headlines may have reinforced an already weaker Yes case, without establishing causation.

    The measured move

    Yes: 10.5% → 7.5%

    What changed

    Yes odds fell 3.0 points, from 10.5% to 7.5%, across July 8, 2026 16:30 UTC to July 14, 2026 13:22 UTC.

    What to watch next

    Watch for verified battlefield reporting around Sumy, any territorial-control updates, and whether additional frontline or diplomatic news changes expectations again.

    Sources

Market rules, made readable

Official description

How this market is decided

Read the rules before reading the headline. Resolution wording decides the outcome, not the news.

See what is changing

Resolves Yes

This market will resolve to “Yes” if, according to the ISW map, Russia captures the Sumy railroad station located on Pryvokzalna ploscha by September 30, 2025 at 11:59 PM ET.

Resolves No

If the area is not shaded red by September 30, 2025, 11:59 PM ET, the market will resolve to “No”.

The railroad station will be considered captured if any part of the train station icon is shaded red on the ISW map ( by the resolution date. 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. The primary resolution source for this market will be the ISW Ukraine map. If the ISW map is rendered unavailable, information from DeepStateMap ( may be used.

Read the complete resolution rules

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.

Maps and resolution sources

Reference images

Visual locations supplied in the market’s official description.

Sumy train stationExternal image · polymarket-upload.s3.us-east-2.amazonaws.comOpen original imageSumy locationExternal image · polymarket-upload.s3.us-east-2.amazonaws.comOpen original image

Living timeline · 1 significant update

Russia attack in Sumy coincides with a 3-point Yes odds drop

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Recent market explanations

Plunge

Russia attack in Sumy coincides with a 3-point Yes odds drop

Will Russia capture Sumy by...?

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