Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Alternative) 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, Qualification ATP: Hugo Gaston vs Colton Smith | 100% |
| Completed Match | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Total Sets: O/U 2.5 | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 2 O/U 8.5 | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Match O/U 21.5 | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 2 Winner | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 2 O/U 9.5 | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Match O/U 22.5 | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Match O/U 23.5 | 100% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 1 Winner | 0% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 1 O/U 8.5 | 0% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 1 O/U 9.5 | 0% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 2 O/U 10.5 | 0% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set 1 O/U 10.5 | 0% |
| US Open, Qualification ATP: Hugo Gaston vs Colton Smith Set Handicap +/-1.5 | 0% |
Market context
Based on real-money crowd forecasting, us open, qualification atp: hugo gaston vs colton smith stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Hugo Gaston and Colton Smith in the US Open, Qualification ATP, originally scheduled for August 27, 2026 at 2:00PM ET. This market w…
Methodology
This page compares US Open, Qualification ATP: Hugo Gaston vs Colton Smith 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 Kalshi Alternative, 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.
- 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. Kalshi Alternative 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. Kalshi Alternative 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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