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Sign upMarta Kostyuk vs Katherine Sebov — R64 — Canadian Open
Completed
Canadian OpenRound of 64
·Masters·HardCompleted
Aug 4, 2026·06:35 PM·1h 18m·Montreal / Toronto
Marta Kostyuk defeated Katherine Sebov 7(7)-6(4), 6-0 — Canadian Open 2026 R64.
Marta Kostyuk and Katherine Sebov: Marta Kostyuk leads 1–0 across 1 recorded meeting.
The first-serve split did the sorting. Down 4-1 in the opener after Sebov broke in game 5, Marta Kostyuk won 71 percent of first-serve points to Katherine Sebov's 41 and converted 6 of 7 break points, dropping no games after the first-set tiebreak. The No. 10 seed needed just 78 minutes in her first outing since a Wimbledon semifinal run, a tidy restart against an opponent she'd never faced on record.