R64 Canadian Open 2026

Marta Kostyuk #11 def. Katherine Sebov #229

7-6(4) 6-0

Marta Kostyuk defeated Katherine Sebov 7-6(4) 6-0 in the 2026 Canadian Open second round on hard courts on August 4, 2026.

Match Information

Match Statistics

StatMarta KostyukKatherine Sebov
Serving
AcesServes that land in and are not touched by the returner.
50
Double faultsService points lost by missing both first and second serve.
76
First serve %Percentage of service points where the first serve landed in.
38.5%68.4%
First serve points won %Percentage of points won after making a first serve.
70.0%43.6%
Second serve points won %Percentage of second-serve points won, including points lost through double faults.
50.0%38.9%
Break points saved %Percentage of break points won by the server.
40.0%14.3%
Service points won %Percentage of all points won while serving.
57.7%42.1%
Returning
Break points converted %Percentage of break-point chances won by the returner.
85.7%60.0%
Return points won %Percentage of all points won while returning.
57.9%42.3%
Overall
Total points won %Percentage of all completed points won.
57.8%42.2%
Match Serve+This match’s service points won percentage minus the tour’s season average, in percentage points. Zero is average; +5 means five points above average. Match-weighted available stats; no opponent adjustment.
+0.8-14.8
Match Return+This match’s return points won percentage minus the tour’s season average, in percentage points. Zero is average; +5 means five points above average. Match-weighted available stats; no opponent adjustment.
+14.8-0.8

* Match Serve+ and Match Return+ compare this match with the WTA 2026 average from available match stats. Zero is average; +5 means five percentage points above average. No opponent adjustment.

Win Probability

How the market's view of each player's chances changed through the match.

Source: Polymarket (opens in a new tab)

Focus the chart and use the left and right arrow keys to inspect probability updates.

Player Comparison

FieldMarta KostyukKatherine Sebov
Country UKR CAN
Birth dateJun 28, 2002Jan 5, 1999
Age2427
Height175 cm173 cm
HandednessRight-HandedRight-Handed
Backhand styleTwo-Handed Backhand
Ranking (entering)11229
Ranking points (entering)3,925343
Elo (entering)2,0891,552
Current career W-L162–1184–9
Current career earnings$11,168,749$713,134
Pre-match H2H
Marta Kostyuk #11 1 0 Katherine Sebov #229

Path

Marta Kostyuk's path

No prior matches in this tournament.

Marta Kostyuk's next match

OpponentScoreW-LH2HMatch DataDateRound
Madison Keys #236-3 6-1WH2HMatch dataAug 6, 2026R32

Katherine Sebov's path

OpponentScoreW-LH2HMatch DataDateRound
Aoi Ito #2356-3 6-4WH2HMatch dataAug 2, 2026R128