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Oklahoma Governor Republican Primary Winner

Live odds for "Oklahoma Governor Republican Primary Winner" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

Mike Mazzei 84% Gentner Drummond 16% Chip Keating 0% Leisa Mitchell Haynes 0% Volume: $834K Liquidity: $95K Closes: 25 Aug 2026
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Oklahoma Governor Republican Primary Winner

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Prediction Today) Pick
polygram.ink (preferred broker)
84% 16% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Live odds →
Polymarket (direct)
polymarket.com
84% 16% 0% Geo-blocked in US/UK/EU USDC, on-chain Live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Live odds →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
Mike Mazzei84%
Gentner Drummond16%
Chip Keating0%
Leisa Mitchell Haynes0%
Charles McCall0%
Jake Merrick0%
Ryan Walters0%
Matt Pinnell0%
Candidate A0%
Candidate B0%
Candidate C0%
Candidate D0%
Candidate E0%
Candidate F0%
Candidate G0%
Candidate H0%
Candidate I0%
Candidate J0%
Candidate K0%
Candidate L0%
Candidate M0%
Candidate N0%
Candidate O0%
Other0%

Market context

Oklahoma Republicans are back in the final stretch of the governor’s nomination fight, with the June primary having produced a runoff between Attorney General Gentner Drummond and former state senator Mike Mazzei, after neither cleared the 50% threshold in a nine-candidate field.[1][2][3] That leaves the market’s 42% implied probability as a read on a two-man contest rather than a crowded first-round scramble, and it should be judged against the fact that the first round finished close, with Drummond and Mazzei each around a quarter of the vote.[1][4]

The main framing point is that Oklahoma’s rules reward consolidation late in the cycle: a divided first round can move sharply once the electorate narrows to party regulars in a runoff, especially when one contender carries the Trump endorsement and the other has statewide office and name recognition.[1][2][4] In comparable primary runoffs, polling and early vote shares have proved less decisive than turnout among the most reliable partisan voters, which is why close first-round margins often translate into a much tighter race than the pre-runoff headline numbers suggest.[3][4]

What matters now is the official result flow. The market settles on the Republican Party’s first official announcement, though overwhelming consensus reporting can suffice, so traders will watch for any statement from the Oklahoma Republican Party, Associated Press calls, and local outlet result feeds around the August runoff timetable.[1][4][5] The key dependency is whether the runoff is called cleanly and whether any reporting dispute arises over absentee, late-arriving, or county-level totals, but the race itself is already defined by the two candidates advancing from June.[1][2][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Oklahoma Governor Republican Primary Winner 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 Prediction Today, 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.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?
Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
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.
Is Polymarket legal in the UK?
Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
Do I pay tax on prediction market profits in the UK?
UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
How do I deposit on Polymarket from the UK?
UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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