Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
62% | 38% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
62% | 38% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Dopropillia | 62% |
| Druzkhivka | 27% |
| Sloviansk | 22% |
| Kramatorsk | 17% |
| Sumy | 9% |
| Kherson | 9% |
| Kharkiv | 6% |
| Zaporizhia | 5% |
Market context
Russia’s offensive in eastern Ukraine has slowed despite Kremlin deadlines to seize all of Donetsk Oblast, with battlefield realities failing to match Moscow’s 15 separate 2022–2026 capture targets [6]. Recent ISW assessments show Russian forces gained only 40.64 square kilometres between December 2025 and May 2026, while losing 38 square miles in a single week in late May 2026—the largest weekly territorial loss this year [8][10]. Historical precedents like the disputed capture of Kostiantynivka, where Russian claims were denied by Ukrainian officials, illustrate how ISW shading often lags or contradicts initial announcements, tempering the 22% crowd-implied probability for new city entries by December 2026 [2].
Traders should monitor ISW map updates following major drone strikes, such as the 154-drone attack on 29–30 June 2026, which often precede ground advances but rarely guarantee city capture [6]. Key catalysts include Russian attempts to push into western Donetsk Oblast and southeastern Dnipropetrovsk, areas where offensives have repeatedly stalled despite intensified operations [4]. The persistence of shading on the ISW storymap through the next full reporting cycle is the sole resolution criterion, meaning temporary incursions without sustained control will not trigger a “Yes” outcome.
Regulatory access hinges on jurisdictional frameworks: German GlüStV treats prediction markets as gambling, requiring licensing for operators, while US CFTC reach extends to platforms offering contracts on geopolitical events to US persons. The “no-KYC up to $1,500” threshold permits anonymous participation for non-US users under certain exemptions, but does not override CFTC prohibitions on unregistered betting on foreign conflicts. For this market, accessibility remains limited for US traders regardless of deposit size, whereas EU users face GlüStV compliance checks above the threshold.
Methodology
This overview of Which cities will Russia enter by December 31? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Do I need to KYC for Polymarket Tax UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Tax UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Tax UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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