Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 2 O/U 8.5 | 100% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 1 O/U 8.5 | 100% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 1 Winner | 100% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 2 O/U 9.5 | 100% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez | 62% |
| Completed Match | 50% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Match O/U 21.5 | 50% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set Handicap +/-1.5 | 50% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Match O/U 22.5 | 50% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Total Sets: O/U 2.5 | 50% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Match O/U 23.5 | 50% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 2 Winner | 0% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 1 O/U 9.5 | 0% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 2 O/U 10.5 | 0% |
| ITF Sao Paulo: Isabella Barrera Aguirre vs Mell Elizabeth Reasco Gonzalez Set 1 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to itf sao paulo: isabella barrera aguirre vs mell elizabeth reasco gonzalez. This market refers to the tennis match between Isabella Barrera Aguirre and Mell Elizabeth Reasco Gonzalez in the ITF Women Sao Paulo, originally scheduled for July 14, 2026 at 1:30PM ET. This market…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- 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 fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- 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.
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