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

Platform comparison

Active sub-markets

Market context

Legislative elections are scheduled for 18–20 September 2026 in Russia, where 450 seats in the State Duma will be contested. On Polymarket, the contract "Which party will gain most seats in Russian Parliamentary Election?" currently prices United Russia (ER) as the dominant outcome at 61%, while New People (NL) holds 30%. The specific market asking which party gains the most seats relative to pre-election levels shows a mere 2% probability for the "YES" outcome, reflecting deep scepticism that any challenger will outperform the ruling party’s seat growth.

Historically, Russian parliamentary contests since 2000 have consistently favoured United Russia, which secured 324 seats in 2021 with 49.8% of the vote. Comparable cases, such as the 2016 and 2021 elections, show minimal seat gains for opposition parties, with United Russia maintaining or expanding its majority. The 2% probability aligns with this pattern, as New People is the only party showing potential for growth compared to 2021, yet polling remains volatile: VCIOM places them at 13.4%, while FOM suggests just 6%[4].

Traders should monitor Kremlin preparations for the election, including adjustments to single-mandate constituency boundaries, which authorities are altering ahead of the 2026 vote[7]. Key catalysts include official campaign announcements, party-list finalisations, and any shifts in polling data from VCIOM or FOM. The election is the first State Duma contest since the war against Ukraine began, adding geopolitical weight to the outcome[3]. On-chain mechanics on Polygon using USDC and conditional tokens will resolve the market by 30 September 2027, with ties broken by valid vote count.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Which party will gain most seats in Russian Parliamentary Election? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.

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.