Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
28% | 72% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
28% | 72% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| December 31 | 28% |
| September 30 | 12% |
Market context
Polymarket is pricing a **12% YES** chance that Ukraine will re-enter Rodynske on ISW’s map before the settlement window closes, which means the contract is still being treated as a low-probability conditional-token outcome rather than a base-case battlefield shift. Because settlement depends on USDC-backed positions on Polygon and the ISW shading persisting through the update rules in the market definition, traders are really betting on whether Ukrainian control can be shown clearly enough on the map, not just on who briefly claims ground on social media. [8]
Rodynske matters because it sits on the Pokrovsk axis, where both sides have repeatedly described the town as part of the fight for logistics and encirclement routes. Recent reporting has oscillated between Ukrainian statements that they still hold positions and Russian claims of pressure or partial advances, which is exactly the kind of noisy front-line environment that can keep a market like this pinned below parity even when fighting is fluid. Earlier comparable episodes around Rodynske showed that short-lived claims of capture were often followed by denials or renewed Ukrainian presence, so traders have to separate transient incursions from an ISW-recognised change in control. [2][5][6]
The main catalysts are likely to be battlefield reporting from the Pokrovsk–Myrnohrad area, official updates from Ukraine’s eastern command, and any new ISW map changes that visibly shade Rodynske under Ukrainian control. Recent Russian pressure around the settlement has been reported alongside heavy assault activity near Rodynske and Hryshyne, which suggests that even small tactical gains or losses could matter if they are confirmed in open-source geolocation and then survive the next map update cycle. For Polymarket users, that means watching the ISW layer itself as closely as the headline reports, since the contract resolves off the mapped territorial status rather than off statements alone. [1][7][17]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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.
- 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.
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