Stuttgart Open: Sho Shimabukuro vs Nick Kyrgios

Platform comparison

Active sub-markets

Market context

The Stuttgart Open grass-court tournament will host a first-round encounter between Japanese qualifier Sho Shimabukuro and Australian wildcard Nick Kyrgios in June 2026. The market currently reflects 100% implied probability for match completion, suggesting traders expect the fixture to proceed as scheduled on 11 June.

Kyrgios has historically struggled on grass relative to his hard-court record, though his serve remains a significant asset on faster surfaces. Shimabukuro, ranked outside the top 100, typically competes in Challenger circuits and qualifies for ATP events sporadically. Historical precedent suggests that when established players face lower-ranked qualifiers at grass tournaments, the favourite advances in roughly 75–80% of cases, yet the current 100% probability for match occurrence leaves no room for withdrawal, injury, or scheduling disruption. The settlement window extends to 18 June, allowing seven days beyond the scheduled date for completion, which accommodates typical rain delays on grass courts.

Key variables include Kyrgios's fitness status heading into the tournament—he has experienced recurring knee and shoulder issues that occasionally force withdrawals—and any late-draw changes by tournament organisers. Recent ATP communications regarding Stuttgart's 2026 scheduling remain limited in public reporting. Shimabukuro's qualification path and seeding will determine whether he faces Kyrgios or another opponent. The extreme confidence in match occurrence suggests traders have discounted cancellation risk substantially, potentially leaving value for those assessing realistic withdrawal probabilities given player injury histories and the volatile nature of grass-court scheduling.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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 Who Will Win 2026, 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?

Who Will Win 2026 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 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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.