Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win 2026) Pick polygram.ink (preferred broker) |
57% | 43% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
57% | 43% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| September 30? | 57% |
| August 30? | 39% |
| August 9? | 21% |
Market context
Max Miller is still running for OH-07, but the market is pricing a meaningful chance that pressure, allegations and procedural deadlines force an exit before the settlement window closes. At **21% YES**, the crowd is treating withdrawal as an **underdog** outcome rather than a base case, with the consensus in recent reporting still leaning towards him staying in unless there is a decisive change in his own position or the party’s calculus.[2][3][7]
For framing, comparable cases in congressional races usually turn on whether a candidate is boxed in by ballot mechanics, party pressure and personal risk rather than by polling alone. Here, the relevant comparison is a late-cycle incumbent under scrutiny who has repeatedly said he will stay, while party figures and national coverage keep the option of a withdrawal alive; that makes the upside for a YES bet mostly a sudden announcement rather than a slow drift.[3][13][17] If Miller has already signalled he will remain in the race, the market’s current probability looks more like a premium for headline risk than a view that a drop-out is likely.[2][5]
The main catalysts are straightforward: any official statement from Miller, a filing or announcement that he is suspending the campaign, or a party move to replace him before the withdrawal deadline. Reporting on 7 August said Miller was resisting pressure to exit even as the House Ethics Committee opened an investigation, and that Republicans would need to act quickly to swap him off the ballot, which is why the next day or two matter most for this market.[3][7][13] The contrarian angle is that the window is tight but still open; the favourite remains **No**, yet the value case for **Yes** rests on a late, official reversal rather than on speculation alone.[3][13]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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.
FAQ
- 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 Who Will Win 2026. 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.
- 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.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within 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.
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