Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 1 O/U 8.5 | 100% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Total Sets: O/U 3.5 | 63% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set Handicap +/-1.5 | 61% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Game Spread +/-4.5 | 60% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Match O/U 36.5 | 54% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set Handicap +/-1.5 | 52% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 2 Winner | 51% |
| Completed Match | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 2 O/U 8.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Total Sets: O/U 4.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 2 O/U 9.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 4 Winner | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Match O/U 40.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 2 O/U 10.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 3 O/U 8.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 3 O/U 9.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 3 O/U 10.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 4 O/U 8.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 4 O/U 9.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 4 O/U 10.5 | 50% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Match O/U 38.5 | 45% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 3 Winner | 35% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set Handicap +/-2.5 | 35% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe | 20% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 1 Winner | 0% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set Handicap +/-2.5 | 0% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 1 O/U 9.5 | 0% |
| US Open ATP: Rei Sakamoto vs Frances Tiafoe Set 1 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to pronóstico: us open atp: rei sakamoto vs frances tiafoe. This market refers to the tennis match between Rei Sakamoto and Frances Tiafoe in the US Open ATP, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolve to 'Rei Sakamoto'…
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Qué Es, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Pronóstico: US Open ATP: Rei Sakamoto vs Frances Tiafoe on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
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