Giovanni Mpetshi Perricard vs Alexander Bublik — QF — Stuttgart Open

Two breakers, zero breaks of serve, and Alexander Bublik found the margins both times. He never gave up a single break point yet still won 7-6 (5), 7-6 (7) — the difference came on first-serve efficiency, where Bublik won 86% (50 of 58) to Giovanni Mpetshi Perricard's 75%. Mpetshi Perricard out-aced him 19 to 11 and piled up 43 winners, but a 22-to-14 unforced-error gap and a couple of loose tiebreak points settled their first grass meeting and squared the Boss Open rivalry's surface ledger.