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 |
|---|---|
| Completed Match | 100% |
| Monterrey Open: Camila Osorio vs Ann Li Game Spread +/-0.5 | 1% |
| Monterrey Open: Camila Osorio vs Ann Li | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 2 O/U 8.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 1 O/U 8.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Match O/U 21.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 2 Winner | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Total Sets: O/U 2.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 1 Winner | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 2 O/U 9.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Match O/U 22.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 1 O/U 9.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 2 O/U 10.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Match O/U 23.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set 1 O/U 10.5 | 0% |
| Monterrey Open: Camila Osorio vs Ann Li Set Handicap +/-1.5 | 0% |
Market context
Based on real-money crowd forecasting, monterrey open: camila osorio vs ann li stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Camila Osorio and Ann Li in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET. This market will resolve to …
Methodology
This page compares Monterrey Open: Camila Osorio vs Ann Li 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.
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- 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.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- 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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