Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Kalshi UK.
Active sub-markets
| Stuttgart Open, Qualification: Roman Safiullin vs Alexis Galarneau Set Handicap +/-1.5 | 0% Safiullin | 100% Galarneau |
| Stuttgart Open, Qualification: Roman Safiullin vs Alexis Galarneau | 0% Roman Safiullin | 100% Alexis Galarneau |
| Completed Match | 100% YES | 0% NO |
| Stuttgart Open, Qualification: Roman Safiullin vs Alexis Galarneau Match O/U 21.5 | 100% Over | 0% Under |
| Stuttgart Open, Qualification: Roman Safiullin vs Alexis Galarneau Set 1 Winner | 0% Safiullin | 100% Galarneau |
| Stuttgart Open, Qualification: Roman Safiullin vs Alexis Galarneau Total Sets: O/U 2.5 | 100% Over 2.5 | 0% Under 2.5 |
Market context
Based on real-money crowd forecasting, stuttgart open, qualification: roman safiullin vs alexis galarneau stands at 0% likelihood according to current market consensus. This market refers to the tennis match between Roman Safiullin and Alexis Galarneau in the Stuttgart Open, Qualification, originally scheduled for June 7, 2026 at 6:30AM ET. This …
Methodology
We track Stuttgart Open, Qualification: Roman Safiullin vs Alexis Galarneau on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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
- Where can I trade this market with the lowest fees?
- On Kalshi UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 it cost to trade on Kalshi UK?
- Zero. Kalshi UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in minutes.
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