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Ikumi Yamazaki
Ikumi Yamazaki is a professional tennis player from Japan, 25 years old, ranked No. 639 on the WTA singles rankings as of September 21, 2026. Career-high ranking: No. 348 (September 22, 2025). Yamazaki has won 4 career singles titles from 6 finals (2 at WTA 125 / ITF, 2 at ITF level). Most recent title: W15 Tokyo (2026), beating Sato 7-6(4), 2-6, 6-2 in the final. In 2026 the record stands at 19-26 (0-2 at WTA 125 level, 19-24 at ITF / Futures level). Last match: lost to Matsuda 6-2, 6-3 in the R1 at W50 Nanao, September 22, 2026.
The Climb
From the Futures to the Slams
The milestones that mark a professional career, with the ranking at each step.
Call the climb
Say where this player will be, and by when. Graded from the weekly rankings; the record lives on My Slip.
Why we're watching
Recent results
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The last ten singles matches, from the results feed. Click a column header to sort.
Career record by surface
Ranking, recent weeks
Titles & finals
Win–loss by level · this season
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