WTA · Japan · U · 21.1 yrs

Sayaka Ishii

Rank

#642

Elo

1613

Serve skill

0.007 ±2.201

Return skill

0.141 ±2.184

Points observed

3,920

Hard Elo

1635

Clay Elo

1602

Grass Elo

1531

The ± bands are the rating engine's uncertainty — they widen during absences and tighten with play. We show them instead of pretending the point estimate is exact.

Season record

1-3

Grass

0-2

Hard

1-1

Career

13-17

Titles

Best rank

#188

Rest days

Matches (14d)

Last 10 matches

Wvs Elina Avanesyan · Kinoshita Group Japan Open · Hard6-3 0-0 (ret.)2026-10-17

Lvs Kayla Cross · Cerity Partners Hall of Fame Open for the Van Alen Cup Presented by the Margaret Fund · Hard6-2 6-32026-07-08

Lvs Kaitlin Quevedo · Wimbledon · Grass6-0 6-32026-06-23

Lvs Vendula Valdmannova · Birmingham 125 · Grass3-6 6-2 6-42026-06-01

Wvs Destanee Aiava · Newport 125 · Grass3-6 6-3 6-32025-07-07

Wvs Hanna Chang · Newport 125 · Grass6-1 4-6 7-52025-07-07

Lvs Tatjana Maria · Newport 125 · Grass6-3 6-12025-07-07

Lvs Kathinka Von Deichmann · Wimbledon · Grass7-5 6-12025-06-30

Wvs Alana Smith · Ilkley 125 · Grass6-1 1-6 6-22025-06-09

Lvs Valentina Ryser · Ilkley 125 · Grass6-4 7-52025-06-09

As of 2026-10-18 02:25 UTC · For informational purposes only; not betting advice.