Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
73% | 27% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
73% | 27% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| United Russia (ER) | 73% |
| New People (NL) | 20% |
| Liberal Democratic Party of Russia (LDPR) | 5% |
| Communist Party of the Russian Federation (KPRF) | 2% |
| Yabloko | 1% |
| A Just Russia – For Truth (SRZP) | 0% |
| Rodina | 0% |
| Civic Platform (GP) | 0% |
| Other | 0% |
| Party B | 0% |
| Party C | 0% |
| Party D | 0% |
| Party E | 0% |
| Party F | 0% |
| Party G | 0% |
| Party H | 0% |
| Party I | 0% |
| Party J | 0% |
| Party K | 0% |
| Party L | 0% |
| Party M | 0% |
| Party N | 0% |
| Party O | 0% |
| Party P | 0% |
| Party Q | 0% |
| Party R | 0% |
| Party S | 0% |
| Party T | 0% |
| Party U | 0% |
| Party V | 0% |
| Party W | 0% |
| Party X | 0% |
| Party Y | 0% |
| Party Z | 0% |
Market context
Russia’s next State Duma election is scheduled for September 2026, and the market is about which party will add the most seats versus its current position, not simply which party wins outright. United Russia starts from a dominant base in the outgoing Duma, so the key question is whether it can still post the largest seat increase; recent public projections still place it well ahead of other parties on seat count and vote share, with FOM-based estimates giving United Russia 243 seats and 49.3% support, while the other parties are far behind and clustered in the teens or single digits.[1][4]
That is why the current 68% crowd-implied probability for a United Russia gain looks broadly consistent with historical and model-based baselines, but not immune to movement if polling or candidate rules change. Comparable projections from other market data services also point to a comfortable United Russia lead, with one simulation set showing a median of 317 seats and a 100% chance of winning the most seats, underlining how entrenched the ruling party remains in seat forecasts.[3][7] Because the contract settles in USDC, traders are mainly pricing the election mechanics and timing risk rather than a direct crypto macro bet, though broader BTC/ETH risk appetite can still affect order books and wider market liquidity.
The main catalysts are the official election schedule, any changes to ballot access or district rules, and the final candidate slates, because those determine whether the opposition can convert vote share into seat gains. Public coverage continues to frame the vote as a managed contest, with the September 2026 timetable and 450-seat Duma still the central reference points for forecasting.[8][11] For a prediction market, the practical watchlist is polling drift in the months before the vote, Kremlin or election commission announcements, and any update to the turnout or counting process that could alter the seat delta between United Russia and the smaller parties.[1][6]
Methodology
This page reads Which party will gain most seats in Russian Parliamentary Election? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- 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%.
Trade Which party will gain most seats in Russian Parliame… on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →