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 W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao | 100% |
| Completed Match | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Total Sets: O/U 2.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 O/U 8.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 O/U 8.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 Winner | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Match O/U 21.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Match O/U 22.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Match O/U 23.5 | 100% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 Winner | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set Handicap +/-1.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 O/U 9.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 O/U 9.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set Handicap +/-1.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 2 O/U 10.5 | 0% |
| ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao Set 1 O/U 10.5 | 0% |
Market context
Chengyiyi Yuan and Yushan Shao are scheduled to compete in the ITF W15 Tianjin 2 Women's tournament on 14 August 2026. The market currently reflects a 100% implied probability for Yuan's advancement, suggesting either substantial disparity in player rankings or recent form, or alternatively a technical issue with market liquidity. The settlement window closes on 22 August 2026, allowing a seven-day buffer beyond the scheduled match date for completion.
Both players compete on the ITF Women's circuit, a developmental tier where match outcomes depend heavily on recent tournament performance, injury status, and head-to-head records. Yuan's current probability dominance indicates she is favoured based on available ranking data or recent results from comparable W15 events. Historical ITF W15 matches show significant variance in upset potential, particularly when players are closely matched in ranking points or when one competitor is returning from injury. The extreme probability reading warrants scrutiny—such certainty is rare in tennis unless one player has withdrawn or the market has failed to attract sufficient trading volume.
Traders should monitor official ITF tournament announcements and player social media for withdrawal notices or injury declarations in the week preceding 14 August. Court scheduling changes, weather delays, or last-minute withdrawals could trigger the 50-50 tie-break resolution. Recent ITF tournament reports should confirm both players' participation status and any seeding information. The settlement window's seven-day extension means matches delayed beyond the original date but completed within that period will still resolve to the winner, reducing the likelihood of a 50-50 outcome unless the match is cancelled entirely.
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
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
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- 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.
- Why do Polymarket and Kalshi differ on elections?
- Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.
- 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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