Naomi Osaka defeated Katie Boulter 6-1 6-2 in the Birmingham round of 32 on grass. The result followed the form book — Naomi Osaka came in ranked #17, defending last year's round of 16.
Osaka N. took it in straight sets.
Osaka N. and Boulter K. faced 1 of the same opponent in the last 12 months. Osaka N. went 1–1 (50%) against them, Boulter K. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Naomi Osaka beat Katie Boulter 6-1 6-2. Umpiry, "Naomi Osaka vs Katie Boulter — Birmingham Round of 32", https://umpiry.com/match/2018-06-18/boulter-vs-osaka-birmingham-r32?utm_source=cite (as of 18 June 2018).