JapanHiromasa Oku: Ranking, Schedule & Stats
- Age
- 36
Hiromasa Oku is a professional tennis player from Japan, born 31 July 1989.
This page tracks Hiromasa Oku's upcoming schedule, latest results, recent form and surface record, with each match linking through to a detailed head-to-head and pre-match analysis. Scores update live as matches are played.
Career highs
Umpiry Rating 1499 · peak 1504 · 2016
Ranking trajectory from our weekly snapshots (last ~12 months); peak rating and longest tour-level win streak from our match records. Umpiry rank is the player’s position by our rating — the arrow shows how many spots that is above (▲) or below (▼) their official ranking.
2026 season form
0–0W–L
Recent surface record
Hard1–1 (50%)
Career record
1–1W–L
Career surface record
Hard1–1 (50%)
Recent results
More Japan players
Frequently asked questions
When was Hiromasa Oku born?
Hiromasa Oku was born on 31 July 1989 (36 years old).
Where is Hiromasa Oku from?
Hiromasa Oku is from Japan.