Hiromasa Oku
🇯🇵Japan· Unranked· 37y· Right-handed· ATP
Record by season
| Season | Total | Hard | Clay | Grass | Indoor |
|---|---|---|---|---|---|
| All | 73–8347% | 39–4845% | 20–2149% | 0–20%† | 14–1254% |
| 2017 | 3–633% | 1–420% | 0–10%† | — | 2–167%† |
| 2016 | 8–1831% | 6–1233% | 1–420% | — | 1–233%† |
| 2015 | 21–2051% | 11–1248% | 7–654% | — | 3–260% |
| 2014 | 21–1953% | 13–1252% | 3–443% | — | 5–363% |
| 2013 | 11–955% | 6–555% | 5–271% | — | 0–20%† |
† fewer than 5 matches
Records start with the 2011 season
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