Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
57% | 43% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
57% | 43% | 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 |
|---|---|
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Match O/U 22.5 | 57% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 Winner | 54% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante | 53% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 Winner | 53% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 O/U 8.5 | 51% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 O/U 9.5 | 51% |
| Completed Match | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 O/U 8.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Match O/U 21.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 O/U 9.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set Handicap +/-1.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 2 O/U 10.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set 1 O/U 10.5 | 50% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Match O/U 23.5 | 49% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Total Sets: O/U 2.5 | 48% |
| National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante Set Handicap +/-1.5 | 32% |
Market context
Based on real-money crowd forecasting, national bank open: alexei popyrin vs thiago agustin tirante stands at 57% likelihood according to current market consensus. This market refers to the tennis match between Alexei Popyrin and Thiago Agustin Tirante in the National Bank Open, originally scheduled for August 6, 2026 at 11:00AM ET. This mar…
Methodology
This page compares National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante 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
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
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- 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.
- 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 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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