Which party will gain most seats in Russian Parliamentary Election?

Platform comparison

Market context

Russia will hold its first State Duma election since the war against Ukraine began on 18–20 September 2026, with 450 seats contested across a newly redrawn constituency map. United Russia, the ruling party, currently commands 324 seats and leads polls with 46–48% support, while the coalition of United Russia and LDPR secures 66.4% of projected seats[1][2]. Historical precedent shows that in Russia’s last three parliamentary elections, the incumbent party gained the most seats compared to the prior term, reinforcing the 56% crowd-implied probability that United Russia will again top the gains[1][6]. The economic slowdown and rising social discontent noted ahead of this election could test systemic opposition, yet no rival party has demonstrated organisational capacity to outpace United Russia’s primary-driven candidate pipeline[3][7].

Traders should monitor the formal confirmation of voting dates, the finalisation of the 225-constituency map, and the composition of United Russia’s party list, which is expected to be headed by Dmitry Medvedev alongside Foreign Minister Sergei Lavrov[2][3]. A critical dependency is the performance of war veterans in primaries: only 58 of nearly 20,000 applicants secured nominations, with 32 set to run in single-member constituencies, suggesting limited but targeted veteran influence[4]. Recent polling divergence between FOM and VCIOM on New People’s standing—6% versus 13.4%—highlights volatility in second-place contenders, though the party’s internal crisis and poor local election results (one seat won in 2025) undermine its growth potential[5]. Watch for announcements on candidate approvals in the coming weeks, as the party convention on 1 July 2026 already approved 299 list candidates and 83 constituency candidates[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Which party will gain most seats in Russian Parliamentary Election?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

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FAQ

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What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.