Valentin Vacherot and Stefanos Tsitsipas broke each other twice. The winner of their October 2, 2026 Tokyo ATP 500 second-round match was eighth seed Vacherot, who recovered from a set down to win 4-6, 7-6(5), 6-4.
Both players held fourteen of sixteen service games. The second set reached 6-6, and Vacherot won the tiebreak 7-5 to force a deciding set.
The equal break totals came from different pressure levels. Vacherot saved six of eight break points; Tsitsipas saved three of five. Vacherot faced three more opportunities but lost serve the same number of times.
Vacherot won 48 of 67 first-serve points and Tsitsipas 51 of 71, both rounded to 72% in the record. The ace count favoured Tsitsipas nine to seven, but Vacherot followed his tiebreak win by taking the final set 6-4.
