Russia Duma 2026 odds: is United Russia at 70.5¢ value?
Polymarket prices United Russia at 70.5¢ to gain the most seats at the September 2026 State Duma election — a 70.5% market-implied probability — and our estimate is 74%, an edge of 3.5 percentage points (pp) that rests almost entirely on one assumption: that the administrative machine which produced a 49.82% list result in 2021 performs again. On the vote as it would plausibly fall without that machine, United Russia does not win this contract at all.
The contract is “Which party will gain most seats in Russian Parliamentary Election?” and it has drawn $21,737,356 in volume against $2,190,165 of liquidity — genuinely deep for a political market. United Russia trades at 70.5¢, New People at 22.95¢ and the Liberal Democratic Party of Russia (LDPR) at 5.55¢ (Polymarket, 13:25 UTC, August 24, 2026). The most important input behind our estimate is not a poll: it is the State Duma’s own faction table, which shows United Russia on 310 seats today rather than the 324 it won in 2021. This Deep Dive walks the seat arithmetic, the Kremlin factional fight behind it, and the levels that would flip the read.
The Bet at a Glance:
• Market: “Which party will gain most seats in Russian Parliamentary Election?” — Polymarket, August 24, 2026
• Price: United Russia 70.5¢ = 70.5% implied probability; leg volume $7,695,603 — Polymarket, 13:25 UTC, August 24, 2026
• Our estimate: 74% — seat model on the current faction table and two count scenarios, August 24, 2026
• Edge: +3.5pp on United Russia; +2.45pp on LDPR at 5.55¢ — our model
• Baseline that decides it: 310 seats, not 324 — State Duma faction register, retrieved August 24, 2026
• Catalyst / date: voting day set for September 20, 2026 by executive order of June 16, 2026 — kremlin.ru
• Disconfirmation: reporting that the Presidential Administration has settled on lifting New People into second — Meduza, Verstka
Methodology: how the 74% was built
We built the estimate in three steps. First, the baseline: the contract resolves on seats gained against the position before the election, so the starting number matters more than the finishing one, and we took it from the State Duma’s faction register rather than the 2021 result. Second, two seat scenarios for the 450-seat chamber — 225 party-list seats allocated among parties clearing the 5% threshold, and 225 single-member districts. Scenario A strips administrative inflation from the list vote only and holds the district machine constant, which is deliberately generous to United Russia; Scenario B calibrates the list share to the 2021 official outcome. Third, we weighted the scenarios and subtracted resolution risk.
The caveats are large and we would rather state them than bury them. Russian polling in wartime is not a clean instrument, and VTsIOM’s site has been unreachable from our IP since mid-July, so any figure quoted here after July 12 reaches us second-hand through Meduza and The Moscow Times and is attributed to those outlets, not to VTsIOM. Our scenario vote shares are modelling assumptions, not polls, and the district splits inside them are judgement calls. Treat the 74% as a range midpoint, not a precision instrument.
The market and the price
The book lists more than 30 legs, but 22 are placeholders labelled “Party B” through “Party Z” with zero volume and no price. Eight legs actually trade. They sum to 100.75%, a 0.75pp overround — tight by prediction-market standards, and notable because 0.05pp of it belongs to a party that is not running.
| Party | Price | Implied prob | Our estimate | Edge (pp) | Leg volume |
|---|---|---|---|---|---|
| United Russia | 70.5¢ | 70.5% | 74.0% | +3.5 | $7,695,603 |
| New People | 22.95¢ | 22.95% | 17.0% | −5.95 | $2,282,036 |
| LDPR | 5.55¢ | 5.55% | 8.0% | +2.45 | $3,337,586 |
| KPRF | 1.05¢ | 1.05% | 0.7% | −0.35 | $1,438,674 |
| SRZP | 0.25¢ | 0.25% | 0.1% | −0.15 | $1,684,078 |
| Yabloko | 0.25¢ | 0.25% | 0.1% | −0.15 | $1,430,500 |
| Rodina | 0.15¢ | 0.15% | 0.1% | −0.05 | $2,592,817 |
| Civic Platform | 0.05¢ | 0.05% | 0.0% | −0.05 | $1,276,063 |
Sources: Polymarket order book, 13:25 UTC, August 24, 2026; our estimates per the methodology above. Prices are quoted in cents that read directly as a probability. Book total 100.75%.
Is United Russia at 70.5¢ value? On our numbers, marginally — and the margin is thin enough that it does not clear the bar we would normally want on a contract that resolves on an official count no outside body can audit. The price implies a 70.5% probability that United Russia gains more seats than any other party. Our estimate is 74%, an edge of 3.5pp. Almost all of that 74% is carried by one assumption: that the apparatus which produced a 49.82% list result in 2021 performs again in September. Strip it out, run the contest on the vote as independent observers would expect it to fall, and United Russia does not win this contract — it finishes level with or behind an LDPR and New People tie. This market is not a forecast of Russian opinion. It is a forecast of Russian administration.
Why 310 — not 324 — is the number that decides this
United Russia won 324 of 450 seats in 2021. It does not hold 324 today. The State Duma’s faction register shows United Russia on 310, the Communist Party (KPRF) on 56, A Just Russia – For Truth (SRZP) on 27, LDPR on 22 and New People on 15, with four non-affiliated deputies and 16 vacant mandates. Defections, deaths, resignations and unfilled by-elections have quietly eroded the supermajority by 14 seats.
That erosion cuts in United Russia’s favour. A party starting from 310 has 14 more seats of headroom to “gain” than one starting from 324, which makes the contract’s “compared to before the election” wording load-bearing in a way the price does not obviously reflect. If a resolver reaches for the 2021 result rather than the live faction table, United Russia needs 325 seats to register a gain of one — and a band of outcomes, roughly 315 to 324, delivers a comfortable election win and nothing here while a smaller party gains 10. That is a genuine tail, not a rules quibble.
| Party | Seats now | Scenario A: de-inflated list | A: change | Scenario B: 2021-calibrated | B: change |
|---|---|---|---|---|---|
| United Russia | 310 | 316 | +6 | 342 | +32 |
| KPRF | 56 | 50 | −6 | 43 | −13 |
| LDPR | 22 | 35 | +13 | 26 | +4 |
| New People | 15 | 28 | +13 | 22 | +7 |
| SRZP | 27 | 21 | −6 | 17 | −10 |
Sources: current seats from the State Duma faction register, retrieved August 24, 2026 (non-affiliated 4, vacant 16, chamber total 450). Scenarios A and B are our modelling assumptions, not published polls: A de-inflates the 225 list seats only and holds the 225 districts constant; B calibrates the list share to the 2021 official result. Both sum to 450.
The case for United Russia at 70.5¢
The case is short and strong. Scenario B is not exotic — it is the last election happening again, and the last election is the best single predictor available. On a 2021-calibrated list share United Russia lands near 342 seats and gains 32, more than double any rival’s best gain, clearing both possible baselines with room. Nothing observable in 2026 suggests the machine has weakened.
If anything the environment has tightened. On August 10, Russia’s Supreme Court annulled the registration of Yabloko’s federal list of more than 400 candidates after a lawsuit brought by the small nationalist party Rodina; Meduza reports the ruling stemmed from accusations of copyright violation and illegal payments for campaign advertising, while The Moscow Times describes the grounds as foreign funding, “extremism” and copyright violations. Five weeks before the vote, the only registered party running on a peace platform came off the ballot. Yabloko’s deputy chairman Lev Shlosberg was sentenced on August 17 to 11 years in prison for repeatedly “discrediting” the Russian military.
“They’re fighting us with no rules and no law. There are no legal grounds to deprive residents of the Pskov region of the chance to vote for peace, freedom, and a life without fear.”
— Artur Gaiduk, Chairman of the Pskov branch, Yabloko (Meduza, August 21, 2026)
What would United Russia actually have to do to win this contract? Less than the 70.5¢ price suggests, provided the list result lands anywhere near 2021. It needs to add roughly 15 seats to its current 310, or roughly 30 if a resolver anchors on the 324 figure from 2021, and it needs no rival to add more. Because United Russia’s floor is set by the 225 single-member districts, where it took 198 of 225 in 2021 and where the removal of a peace-platform party from the federal ballot removes a source of protest coordination, its distribution is left-truncated in a way its rivals’ are not. Small parties gain seats only by clearing the 5% list threshold and then adding proportionally; United Russia gains them district by district. That structural asymmetry is the real reason the leg trades at a 70.5% probability rather than a coin flip, and it is why our estimate lands above the price rather than below it.
The case against: the fight is inside the Kremlin, not at the ballot box
The strongest argument against 70.5¢ has nothing to do with voters. On August 10, Meduza’s political correspondent Andrei Pertsev reported — corroborated by Verstka and sourced to two strategists linked to the Presidential Administration — that the Kremlin’s political bloc wants to lift New People into second place in the new Duma. New People is curated by First Deputy Chief of Staff Sergei Kiriyenko, and the siloviki oppose the plan. One Verstka source put it plainly: “Nobody wants Kiriyenko to have his own large faction in the Duma.”
Read that against the contract wording and the danger is obvious. Moving New People from 15 seats to second place means roughly 50 to 60 seats — a gain of 35 to 45. Under Scenario B, United Russia gains 32. If the political bloc wins the internal argument, the largest seat gain belongs to New People and the 70.5¢ leg resolves to zero while a comfortable United Russia victory is reported worldwide. This is the rare contract where the favourite can win the election and lose the market.
The counterweight is the polling, and it has moved decisively against New People. Via Meduza and The Moscow Times, the VTsIOM series ran 13.4% in April, 12% in mid-June, 10.7% on July 12 and 8.6% in early August, by which point New People had slipped to fourth as the KPRF retook second. It is worth flagging a read we considered and discarded: on headroom arithmetic alone, New People at 22.95¢ looks cheap, because a party on 15 seats has nowhere to go but up. The polling kills it. The contract traded at 41.2¢ on July 8 and sits near 23¢ today, tracking that decline almost tick for tick — a market absorbing fundamentals, not a mispricing.
“Five weeks before the vote, the state removed the only registered party running on ‘For Peace and Freedom’ over something as trivial as intellectual property, in a country whose cinemas screen pirated Western films.”
— Kateryna Shenheliia, columnist, The Moscow Times (The Moscow Times, August 14, 2026)
LDPR at 5.55¢ and two legs that should not be trading
The most interesting relative price is not the favourite. Under Scenario A, LDPR gains 13 seats — level with New People and more than twice United Russia’s six. It is a systemic party with a national organisation, not curated by any single Kremlin faction, and the obvious alternative vehicle if the New People project stalls. Our estimate for LDPR is 8% against 5.55¢: an edge of 2.45pp, small in absolute terms but a 44% relative underpricing, and the leg where our model and the market disagree most proportionally. It also carries the widest error bars.
Two legs price outcomes that appear off the table entirely. Civic Platform still trades at 0.05¢ despite being suspended by the Supreme Court on April 30, 2026; it is not contesting the election. Yabloko trades at 0.25¢ despite the August 10 annulment of its federal list. Neither moves the book’s arithmetic, but both are a reminder of what this market is: legs assembled in January and not fully maintained since. Our breakdowns of the Brazil 2026 presidential contract and the Venezuela leadership market cover the same resolution problems elsewhere.
Where this bet breaks
The lean on United Russia at 70.5¢ rests on assumptions that could fail. It breaks if any of these fire:
- The Presidential Administration settles the New People question. Credible reporting from Meduza or Verstka that the political bloc has won the internal argument would move the largest-gain outcome away from United Russia even in a landslide. This is the trigger that matters most, and it can fire without any change in the polls.
- The resolution source anchors on 2021 rather than the live faction table. If “before the election” means the 324 seats won in 2021 rather than the 310 held now, the band from 315 to 324 delivers a crushing election win and a zero here. A clarification on which baseline governs would move our estimate several points either way.
- United Russia’s list share is dialled down deliberately. A managed result trimming United Russia to the low 40s on the list, to make the chamber look more plural, drags its seat gain toward the Scenario A figure of six and compresses the gap to its rivals to nothing.
- Further disqualifications reshape the district map. The Rodina litigation strategy is live and has worked once at federal level. Removals or arrests that change who contests the 225 districts alter the structural floor the estimate leans on; a KPRF Duma candidate, Nikolai Bondarenko, was arrested on August 21 over a photograph tied to an extremist-symbols charge.
What to watch between now and September 20
The catalyst date is fixed. Vladimir Putin’s executive order of June 16, 2026 sets the election of deputies to the new convocation for September 20, 2026, and Polymarket’s end date matches it. Multi-day voting across September 18 to 20 has been widely reported and would repeat the 2021 format, but the order names only September 20 — treat the three-day window as expected, not decreed.
Three windows matter before then. The first is the final list of registered federal candidates and the settled ballot order, which fixes who can gain seats at all. The second is the last pre-election polling, where the direction of the New People number matters more than its level — a stabilisation near 9% supports the current price structure, a bounce above 12% does not. The third is the Pskov Regional Court hearing in Rodina’s case against Yabloko, listed for August 25. On levels: above roughly 78¢ the 3.5pp edge is gone, and below roughly 4¢ the LDPR leg widens materially.
TL;DR
Polymarket has United Russia at 70.5¢ — a 70.5% implied probability — to gain the most seats at the September 20, 2026 Duma election. Our estimate is 74%, a slim 3.5pp edge, and it is almost entirely a function of the count rather than the vote: on a de-inflated list result United Russia gains just six seats and finishes behind an LDPR and New People tie. The baseline is 310 seats, not 324, which quietly helps the favourite. The trigger that flips it is reporting that the Kremlin’s political bloc has succeeded in steering New People into second place.
FAQ
What are the odds on the Russian Duma election 2026?
On Polymarket’s “Which party will gain most seats in Russian Parliamentary Election?” market, United Russia trades at 70.5¢, New People at 22.95¢, LDPR at 5.55¢ and the KPRF at 1.05¢, with SRZP, Yabloko, Rodina and Civic Platform all below 0.3¢ (13:25 UTC, August 24, 2026). Volume is $21,737,356 against $2,190,165 of liquidity. The cents read directly as a probability, so 70.5¢ is a 70.5% chance.
Is United Russia at 70.5¢ value?
Our estimate is 74%, an edge of 3.5 percentage points over the 70.5% the price implies. That is a small edge on a contract with genuine resolution ambiguity, and it is not a clear mispricing. The honest framing is that the price is close to fair, with the residual value sitting on the favourite rather than against it.
What is the prediction for the 2026 State Duma election?
Our central scenario has United Russia near 342 of 450 seats, a gain of 32 on its current 310, with New People on 22, LDPR on 26, KPRF on 43 and SRZP on 17. These are modelling outputs calibrated to the 2021 result, not published forecasts, and the district splits inside them are judgement calls.
Why does the baseline of 310 seats matter?
Because the contract resolves on seats gained, not seats held. The faction register shows United Russia on 310 today rather than the 324 it won in 2021, giving it 14 extra seats of headroom. If a resolver anchors on 324 instead, a band of realistic outcomes leaves United Russia with a landslide and a zero here.
Why is Civic Platform still tradeable if it is not running?
The leg appears to be a maintenance artefact. Civic Platform was suspended by the Supreme Court on April 30, 2026 and is not contesting the election, yet it still quotes 0.05¢ with $1,276,063 of accumulated volume. The same book lists 22 zero-volume placeholders labelled “Party B” through “Party Z”; 10 parties actually contest.
What would change this read?
Four things: reporting that the Presidential Administration has settled on lifting New People into second place; a clarification that the resolution baseline is the 2021 result rather than the live faction table; a deliberately trimmed United Russia list share in the low 40s; or further disqualifications reshaping who contests the 225 districts.
Related reading: our French election 2027 Polymarket breakdown, the Polymarket Senate 2026 analysis, and how Polymarket prices geopolitical tails.
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