Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 1 Winner | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Total Sets: O/U 2.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 1 O/U 8.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 2 O/U 8.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Match O/U 21.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 1 O/U 9.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Match O/U 22.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 1 O/U 10.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Match O/U 23.5 | 100% |
| Kingston 2: Paulo Dos Santos vs Andres Martin | 0% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 2 Winner | 0% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 2 O/U 9.5 | 0% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set Handicap +/-1.5 | 0% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set 2 O/U 10.5 | 0% |
| Kingston 2: Paulo Dos Santos vs Andres Martin Set Handicap +/-1.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to kingston 2: paulo dos santos vs andres martin. This market refers to the tennis match between Paulo Dos Santos and Andres Martin in the Kingston 2, originally scheduled for August 26, 2026 at 11:00AM ET. This market will resolve to 'Paulo Dos San…
Methodology
This page compares Kingston 2: Paulo Dos Santos vs Andres Martin 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 Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
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. Polymarket 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. Polymarket 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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