Vallejo vs. Monfils: Match O/U 38.5

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Headlines are matched on the names in “Vallejo vs. Monfils: Match O/U 38.5”. Nobody checks them by hand, so one may not be relevant. They also say nothing about whether the price has already moved on this news.

How this market resolves

This market refers to the tennis match between Adolfo Vallejo and Gael Monfils in the US Open ATP, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 39. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by September 13, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered determined if it would have been guaranteed had the match been played to completion using the minimum number of additional games required. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional games, resulting in at least 22 games played, so "Over" would resolve as the winning outcome. The primary resolution source for this market will be official Grand Slam statistics; however, a consensus of credible reporting may also be used.

Source: https://www.atptour.com/en/scores/current