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: Taylor Townsend vs Taylah Preston | 100% |
| Completed Match | 100% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 2 Winner | 100% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 1 Winner | 100% |
| US Open WTA: Taylor Townsend vs Taylah Preston Game Spread +/-4.5 | 100% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set Handicap +/-1.5 | 100% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 2 O/U 8.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Total Sets: O/U 2.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 1 O/U 8.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Match O/U 21.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 2 O/U 9.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Match O/U 22.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 1 O/U 9.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 2 O/U 10.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Match O/U 23.5 | 0% |
| US Open WTA: Taylor Townsend vs Taylah Preston Set 1 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to us open wta: taylor townsend vs taylah preston. This market refers to the tennis match between Taylor Townsend and Taylah Preston in the US Open WTA, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolve to 'Taylor Tow…
Methodology
This page compares US Open WTA: Taylor Townsend vs Taylah Preston 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
- 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.
- 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.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- 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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