Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
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 ITF Women's 15K circuit represents the entry tier of professional tennis, where both players are building ranking points and match experience. The current 100% implied probability across prediction markets suggests either overwhelming confidence in match completion or sparse liquidity driving extreme pricing. This stands in contrast to how Kalshi and Betfair typically handle lower-tier tennis matches, where fractional odds often reflect genuine uncertainty about fixture execution rather than player performance certainty.
ITF W15 events carry elevated cancellation and rescheduling risk compared to WTA or ATP-sanctioned tournaments. Weather disruptions, player withdrawals due to injury, and scheduling conflicts are documented across the 2024–2025 ITF calendar. Neither Yuan nor Shao holds current WTA ranking status, limiting publicly available recent match data. Polymarket's binary settlement structure differs materially from Smarkets' lay-betting model here: a seven-day delay without completion triggers a 50-50 split on Polymarket, whereas Smarkets' fractional odds would adjust dynamically if postponement became evident. Traders monitoring ITF Tianjin draws and weather forecasts for mid-August should note that Chinese domestic tournaments occasionally experience fixture compression or cancellation without advance notice.
The settlement window closes 22 August 2026 at 03:00 UTC, allowing eight days for match completion. Traders comparing across platforms should verify whether each book's odds reflect match-completion risk separately from outcome probability—a distinction that becomes critical when 100% probability masks underlying execution uncertainty.
Methodology
This page compares ITF W15 Tianjin 2 Women: Chengyiyi Yuan vs Yushan Shao specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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