Which cities will Russia enter by December 31?

Platform comparison

Market context

Russia’s ability to capture any part of a specified Ukrainian city by the end of 2026 hinges on a stalled offensive that has lost its previous momentum. Between December 2025 and May 2026, Russian forces gained control of or infiltrated just 40.64 square kilometres, a fraction of the territory seized in the same period a year earlier [1]. By June 2026, the daily advance rate fell to 1.03 square kilometres, far below the 16.65 square kilometres per day seen in August 2025, leaving Russia highly unlikely to seize the remainder of Donetsk Oblast before the deadline [4].

Historical parallels suggest that such low advance rates rarely translate into full city captures within a 18-month window, especially when Ukrainian forces have largely halted the Spring-Summer 2026 offensive [1]. The 22% crowd-implied probability on Polymarket reflects this sluggish pace, yet traders must monitor whether Russia can restore operational manoeuvre in Donetsk, a capability it has shown no ability to demonstrate recently [4]. On-chain, the contract trades in USDC on Polygon using conditional tokens, where price movements will react sharply to any ISW map shading updates indicating even partial territorial control.

Key catalysts include the daily ISW Russian Offensive Campaign Assessment, which updates the interactive map used for settlement [2]. Traders should watch for announcements on Russian drone and missile strike volumes, as February 2026 saw over 400 projectiles launched overnight, potentially softening defences before ground advances [3]. Any shift in the Kostyantynivka-Druzhkivka tactical area or near Pokrovsk, where recent Russian advances were geolocated, could alter the probability significantly [3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Which cities will Russia enter by December 31? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 PolyGram. 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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.