Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
99% | 1% | 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 |
|---|---|
| September 30, 2026 | 99% |
| December 31, 2026 | 99% |
| August 31, 2026 | 98% |
| May 31, 2026 | 0% |
| August 31 | 0% |
| December 31 | 0% |
| October 31 | 0% |
| July 31, 2026 | 0% |
| September 30 | 0% |
| July 19, 2026 | 0% |
| August 15, 2026 | 0% |
| November 30 | 0% |
| March 31, 2026 | 0% |
| January 31, 2026 | 0% |
| February 28, 2026 | 0% |
| June 30, 2026 | 0% |
| April 30, 2026 | 0% |
Market context
Russia’s drive on Kostyantynivka is part of the wider battle for Donetsk’s so-called fortress belt, the line of urban defences that also underpins the security of Kramatorsk and Sloviansk.[2][11] Reuters reported in June 2026 that Russian forces were “grinding” into the city, but also noted that gains elsewhere on the 1,200-kilometre front had largely stalled, which helps explain why the market is still pricing a low chance of a clean capture by year-end.[3] Open-source assessments describe the city as a southern anchor rather than an isolated prize, so control of surrounding roads and high ground matters as much as street fighting inside the urban area itself.[2][15]
For traders, the key comparison is not with a quick breakthrough, but with attritional cases elsewhere in eastern Ukraine: once Russian forces enter the outskirts, the battle can still drag on for months, especially if supply routes remain contested and Ukrainian units keep rotating in reserves.[2][6] A Reuters report in late June said the city had become the central axis of Russia’s campaign on that sector, but did not suggest an imminent collapse across the broader line.[3] Earlier reporting in May also described Russian advances only as gradual, which points to a slow-moving front rather than a decisive encirclement.[6]
The main catalysts to watch are any changes in Russian pressure on the H-20 axis, fresh battlefield claims from either side, and whether Ukraine reinforces the Kostiantynivka-Druzhkivka corridor or withdraws to shorter lines.[2][11][15] A sudden shift in adjacent towns, bridge access, drone and artillery intensity, or confirmation of degraded Ukrainian logistics could move the market faster than headline diplomacy.[3][9] The current 0% crowd-implied probability suggests traders are treating full capture by 31 December 2025 as highly unlikely, despite the city’s exposed position.[3][4]
Methodology
Sports-specific comparison page for Will Russia capture Kostyantynivka by 2025?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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