Altmaier vs. Tiafoe: Match O/U 21.5

Track live probability, outcome prices, volume, liquidity, and resolution details for Altmaier vs. Tiafoe: Match O/U 21.5. The market currently shows a live probability of 100%, $43 in 24h volume.

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This market is currently listed with an end date of Jun 15, 2026. Market timelines can change if the underlying event is postponed, rescheduled, or resolved early.

This market refers to the tennis match between Daniel Altmaier and Frances Tiafoe in the Stuttgart Open, originally scheduled for June 8, 2026 at 4:00AM ET. This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official ATP statistics.