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 |
|---|---|
| US Open WTA: Mirra Andreeva vs Eva Lys | 100% |
| Completed Match | 100% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 1 Winner | 100% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 2 Winner | 100% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set Handicap +/-1.5 | 100% |
| US Open WTA: Mirra Andreeva vs Eva Lys Game Spread +/-5.5 | 100% |
| US Open WTA: Mirra Andreeva vs Eva Lys Match O/U 21.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 2 O/U 8.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Total Sets: O/U 2.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 1 O/U 8.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 2 O/U 9.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Match O/U 22.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 1 O/U 9.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 2 O/U 10.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set Handicap +/-1.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Match O/U 23.5 | 0% |
| US Open WTA: Mirra Andreeva vs Eva Lys Set 1 O/U 10.5 | 0% |
Market context
Based on real-money crowd forecasting, us open wta: mirra andreeva vs eva lys stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Mirra Andreeva and Eva Lys in the US Open WTA, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolve to…
Methodology
We read US Open WTA: Mirra Andreeva vs Eva Lys from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
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.
- 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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