Which party will gain most seats in Russian Parliamentary Election?

Platform comparison

Market context

Russia’s 2026 State Duma election is scheduled for 18–20 September, with 450 seats at stake in a mixed system of party-list and single-member constituencies. The market is not about which party wins the chamber overall, but which party adds the most seats versus its current standing, so the relevant variable is *net seat gain* rather than raw seat total. [6][11]

The current 69% crowd price is broadly consistent with public projections that still show United Russia as the dominant force, but with some room for other systemic parties to post larger incremental gains from a low base. Recent polling summaries have put United Russia well ahead on seats, while smaller parties such as the Communists, Liberal Democrats, New People and A Just Russia remain far behind in total representation, which makes a large gain from them less likely even if they improve modestly. [1][4] Comparable pre-election projections in this cycle have repeatedly shown United Russia near or above a majority, with seat estimates ranging from roughly 230 to 319 depending on the model and assumptions. [3][8]

For a programmatic trading approach, the main catalysts are the formal election schedule, candidate registration, district boundary or rules changes, and any late polling or turnout signals that alter the expected seat delta. In practice, a bot would watch official election announcements and poll releases, then map them to a seat-gain model using current Duma baselines and threshold effects; if you are using conditional orders, the key trigger is any credible evidence that a smaller party’s expected gain is overtaking United Russia’s incremental increase. The market should remain sensitive to final results only once the Central Election Commission starts publishing seat allocations, because the settlement depends on who gains the most seats, not just who finishes first in vote share.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Which party will gain most seats in Russian Parliamentary Election? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

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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.

UK Frequently Asked Questions

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