Pronóstico: Which party will gain most seats in Russian Parliamentary Election?

Platform comparison

Market context

Russia will hold its State Duma elections on 18–20 September 2026, the first parliamentary vote since the war against Ukraine began. At stake are 450 seats, with United Russia currently holding a commanding 324 seats after winning 49.8% of the vote in 2021[1]. The market currently prices the chance that any party other than United Russia gains the most seats at just 2% YES, reflecting the ruling party’s entrenched dominance and the structural barriers facing opposition groups[2].

Historically, Russian elections have consistently reinforced the incumbent’s majority, with United Russia and LDPR securing 66.4% of seats in the current poll trend[3]. Comparable cases show that even when opposition parties like New People show potential for growth, their actual seat gains remain marginal compared to the ruling party’s stability[4]. The 2% probability aligns with this pattern, as no credible challenger has yet demonstrated the capacity to outperform United Russia in seat accumulation.

Traders should monitor upcoming announcements on constituency boundary changes, which authorities are already adjusting ahead of the 2026 vote[7]. Key catalysts include the release of final party lists, polling updates from VCIOM and FOM, and any shifts in LDPR or KPRF support that could alter the seat-gain dynamic[3]. The settlement window ends 20 September 2026, with conditional tokens on Polygon and USDC settlements ensuring on-chain resolution once results are definitive[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Argentina, which mirrors the Polymarket order book directly.

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.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Argentina trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.