Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
100% | 0% | 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: Jiri Lehecka vs Frances Tiafoe Set 2 Winner | 100% Lehecka | 0% Tiafoe |
| Stuttgart Open: Jiri Lehecka vs Frances Tiafoe Match O/U 23.5 | 0% Over | 100% Under |
| Stuttgart Open: Jiri Lehecka vs Frances Tiafoe Set Handicap +/-1.5 | 100% Lehecka | 0% Tiafoe |
| Stuttgart Open: Jiri Lehecka vs Frances Tiafoe Set 2 O/U 9.5 | 100% Over | 0% Under |
| Stuttgart Open: Jiri Lehecka vs Frances Tiafoe Set 2 O/U 10.5 | 100% Over | 0% Under |
| Stuttgart Open: Jiri Lehecka vs Frances Tiafoe Set 2 O/U 8.5 | 100% Over | 0% Under |
Market context
The Stuttgart Open grass-court tournament will host a first-round encounter between Czech player Jiri Lehecka and American Frances Tiafoe on 12 June 2026. Polymarket currently prices this contract at 100% YES, meaning traders are assigning zero probability to Tiafoe advancing. This extreme pricing reflects either exceptional confidence in Lehecka's form or insufficient liquidity to move the odds, as conditional token markets on Polygon often exhibit thin depth in lower-profile ATP matchups.
Lehecka's recent trajectory provides context for the current odds. The 26-year-old reached the Australian Open semi-finals in January 2024 and has maintained a top-20 ranking, whilst Tiafoe, now 27, peaked at world number 19 in 2022 but has struggled with consistency on grass courts—a surface where Lehecka has shown greater comfort. Head-to-head records between players of similar calibre rarely justify 100% pricing unless one competitor is injured or absent entirely. Historical settlement patterns on Polymarket show that grass-court upsets occur frequently enough to warrant meaningful probability allocation to the underdog.
Traders should monitor official tournament draws and injury reports through the ATP website and player social media until the settlement window closes on 19 June. The six-day buffer beyond the scheduled match date provides cover for weather delays common on European grass, though any postponement exceeding seven days triggers a 50-50 resolution. Lehecka's participation in warm-up events in the fortnight before Stuttgart will signal his physical condition; any withdrawal or reduced match load would justify repricing the contract substantially downward from current levels.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, 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?
- 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.
- Is this market available outside the US?
- Kalshi UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- 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 Stuttgart Open: Jiri Lehecka vs Frances Tiafoe on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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