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 |
|---|---|
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco | 100% |
| Completed Match | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 2 Winner | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Match O/U 21.5 | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 2 O/U 8.5 | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Total Sets: O/U 2.5 | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Match O/U 22.5 | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Match O/U 23.5 | 100% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set Handicap +/-1.5 | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 1 O/U 8.5 | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 1 Winner | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set Handicap +/-1.5 | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 2 O/U 9.5 | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 1 O/U 9.5 | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 1 O/U 10.5 | 0% |
| ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco Set 2 O/U 10.5 | 0% |
Market context
Live Polymarket data shows 100% YES probability for ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco. This market refers to the tennis match between Jessica Pieri and Federica Sacco in the ITF W35 Bistrita Women, originally scheduled for August 18, 2026 at 5:30AM ET. This market will resolve to 'Jess…
Methodology
This page tracks ITF W35 Bistrita Women: Jessica Pieri vs Federica Sacco 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
- 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 political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
- 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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