Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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.
| Outcome | Probability |
|---|---|
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 1 Winner | 100% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 2 Winner | 100% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 1 O/U 8.5 | 100% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli | 73% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Total Sets: O/U 3.5 | 73% |
| Completed Match | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Match O/U 36.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Match O/U 38.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Match O/U 40.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 4 Winner | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 3 O/U 8.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 3 O/U 9.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 3 O/U 10.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 4 O/U 8.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 4 O/U 9.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 4 O/U 10.5 | 50% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 3 Winner | 41% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Total Sets: O/U 4.5 | 28% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Game Spread +/-6.5 | 2% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 2 O/U 8.5 | 1% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 2 O/U 10.5 | 1% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 2 O/U 9.5 | 0% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 1 O/U 9.5 | 0% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set 1 O/U 10.5 | 0% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set Handicap +/-1.5 | 0% |
| US Open ATP: Francisco Comesana vs Flavio Cobolli Set Handicap +/-2.5 | 0% |
Market context
Based on real-money crowd forecasting, us open atp: francisco comesana vs flavio cobolli stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Francisco Comesana and Flavio Cobolli in the US Open ATP, originally scheduled for August 30, 2026 at 11:00AM ET. This market will r…
Methodology
This page tracks US Open ATP: Francisco Comesana vs Flavio Cobolli across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
UK Frequently Asked Questions
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
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