Which party will gain most seats in Russian Parliamentary Election?

Platform comparison

Market context

Legislative elections to the 9th convocation of the State Duma are scheduled for 18–20 September 2026, with 450 seats at stake. United Russia, the ruling party, currently holds 324 seats after securing 49.8% of the vote in 2021. The prediction market currently implies a 56% probability that United Russia will gain the most seats compared to its pre-election tally, a figure that aligns closely with sportsbook odds favouring the incumbent but diverges slightly from some analyst consensus which suggests a tighter margin for New People’s potential growth.

Historically, Russian parliamentary elections have consistently reinforced the ruling party’s dominance, with United Russia maintaining a majority in every election since 2003. Comparable cases, such as the 2021 election where the party secured 324 seats, frame the current probability as a reflection of entrenched administrative control rather than a volatile contest. Poll trends from PolitPro and FOM indicate United Russia leading with 46.1% and 48.6% respectively, while New People shows potential for growth but remains trailing significantly in most surveys.

Traders should monitor official announcements regarding constituency boundary changes, which authorities are already adjusting ahead of the 2026 vote, as noted by the Russian Election Monitor. Key dependencies include the performance of New People, the only party showing potential for growth since 2021, and the administrative efforts to suppress the CPRF’s result while boosting United Russia. Recent polling data from June 2026 confirms United Russia’s lead, but the divergence between FOM and VCIOM on New People’s standing suggests volatility that could impact seat gains.

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Methodology

This page reviews Which party will gain most seats in Russian Parliamentary Election? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket 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.