Japan

Rira Kosaka: Ranking, Schedule & Stats

Rira Kosaka is a professional tennis player from Japan.

This page tracks Rira Kosaka'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.

Recent form

0–3 last 3
LLL

Career highs

Umpiry Rating 1488

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

0–2W–L0%

Recent surface record

Hard0–3 (0%)

Career record

0–3W–L

Career surface record

Hard0–3 (0%)

Recent results

L
vsJang G.
W35 Andong · Round of 32 · hard
2-63-6
L
vsMicic E.
W35 MIYAZAKI · Round of 32 · hard
6-23-64-6
L
vsNaito Y.
W15 Toyama · Round of 32 · hard
1-66-22-6

More Japan players

Osaka N.#13 WTAShimabukuro S.#95 ATPMochizuki S.#115 ATPSakamoto R.#161 ATPDaniel T.#194 ATPHontama M.#202 WTA

Frequently asked questions

Where is Rira Kosaka from?

Rira Kosaka is from Japan.