Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review 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 → |
Market context
Yabloko is still a legally registered party, but the main event risk now is whether Russian authorities use courts, registration rules or extremist designations to stop its federal list from standing in the 2026 State Duma vote before the September 17 cut-off. Reuters reported on 7 August that the Supreme Court will consider a lawsuit seeking to bar Yabloko from the September parliamentary elections, after the pro-Kremlin Rodina party filed the claim.[4]
The probability needs to be read against a long pattern of administrative pressure rather than an obvious overnight ban. Yabloko has repeatedly faced candidate exclusions in regional contests, and EPDE says 32 Yabloko members have already been barred from the 2026 election cycle under “legal” provisions.[1] BBC Monitoring also reported that chairman Nikolai Rybakov was convicted in 2025 in a way that would block him from standing for a year, while the party itself had still planned to contest the 2026 vote.[7] That makes the market less about whether individual names get knocked out and more about whether the party label itself is removed from the ballot.
For a power-user tracking this programmatically, the key inputs are binary court and election-commission events, not opinion polling: Supreme Court rulings, CEC registration notices, and any move to suspend, deregister or label Yabloko in a way that invalidates its federal list. Recent reporting also shows the CEC has already upheld Yabloko candidate exclusions in St Petersburg over paperwork grounds, which is a useful signal that procedural disqualification remains active.[3] If you are wiring alerts, watch for court calendars, CEC publications and regional commission decisions, because a formal ban could arrive through a short notice window rather than a long campaign.
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
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.
UK Frequently Asked Questions
- 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 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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