Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
49% | 51% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
49% | 51% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| December 31 | 49% |
| September 30 | 16% |
| July 31 | 3% |
| June 30 | 0% |
Market context
Russia is pushing tactical gains into Kostyantynivka but has not yet secured the entire municipality, a reality that keeps the Polymarket contract for full capture priced at just 3% YES. On-chain, this USDC bet on Polygon trades conditional tokens reflecting the slim chance that the ISW map will shade the whole town red before the end of 2026. The low probability mirrors the city’s status within Ukraine’s “fortress belt,” where Russian forces have infiltrated roughly 37% of the area by June 2026 without establishing enduring control over most of it[2].
Historically, similar Donbas towns like Avdiivka saw months of grinding infiltration before full red shading appeared, yet Kostyantynivka’s defensive depth and the failure of Russia’s spring-summer 2026 offensive to achieve operationally significant gains suggest a different trajectory[2]. Unlike Avdiivka, where Ukrainian forces eventually withdrew after prolonged pressure, ISW notes Russian troops remain interspersed with Ukrainian positions and lack consolidated control in eastern and southern sections[1]. This fragmentation makes a rapid, total capture unlikely before the settlement window closes.
Traders should monitor daily ISW campaign assessments for shifts in the percentage of territory shaded red, particularly any move beyond the current 37% threshold[2]. Key catalysts include Russian announcements of combined arms army deployments to the area and Ukrainian statements on defensive integrity, as well as the timing of Ukraine’s own counter-offensive schedules[2]. A recent ISW assessment confirms Russian forces will likely continue tactical gains in summer 2026 but remain unlikely to achieve a rapid operational breakthrough against the Fortress Belt[2].
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 Polymarket Qué Es, 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
- 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.
- 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.
- 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.
Trade Pronóstico: Will Russia capture all of Kostyantynivk… on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
Open live market →