Which cities will Russia enter by December 31?

Platform comparison

Market context

Russia’s spring-summer 2026 offensive has stalled, with daily advances plummeting to roughly one square kilometre compared with 16.65 square kilometres per day in August 2025, leaving forces 5,305 square kilometres short of capturing all Donetsk Oblast before the year ends[1][4]. The crowd-implied 22% probability for Russian entry into specified cities by December 31, 2026, treats the favourite as the current defensive line holding firm, while the underdog—Russian breakthrough—lacks operational momentum. Historically, similar low-probability capture markets in 2024–2025 resolved “No” when advance rates fell below two square kilometres daily, suggesting the consensus may be overvaluing the contrarian angle given ISW’s assessment that Russia is highly unlikely to seize the remainder of Donetsk by the deadline[4].

Traders should monitor Ukraine’s intermediate-range strike campaign, which has degraded Russian logistics and air defence since late 2025, directly constraining frontline maneuver[5][6]. Key catalysts include ISW’s daily map updates, particularly any persistent shading indicating Russian control beyond temporary infiltration, and announcements on Russian recruitment versus casualty rates, which have reportedly outpaced since December 2025[1][5]. The June 30 assessment noted no confirmed advances, reinforcing that Russia cannot restore operational maneuver in Donetsk Oblast[4]. Value likely sits below 15% YES, as the market overweights isolated flag-raising tactics and AI-altered footage claims that do not reflect sustained territorial control[4].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.