Japan

Ayumi Koshiishi: Ranking, Schedule & Stats

WTA Rank
#691
Age
25
1224 Elo

Ayumi Koshiishi is a professional tennis player from Japan, born 28 July 2000. The Japanese competes on the WTA Tour.

This page tracks Ayumi Koshiishi'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.

Rankings

Recent form

4–6 last 10
WWLLLLWLWL

Trends

Koshiishi has won 14 of the last 30 first sets

47%

Koshiishi has won 3 of 7 deciding sets

43%

Ranking Projection

No. 691WTA58 pts
12 months agoNo. 370▼ 321 spots
12-month highNo. 367

Trajectory from our weekly snapshots. Defending— points dropping in the next ~12 weeks (last year's results at the same events). Win … — points gained by winning the round they're currently in. Expected — most likely landing rank from our draw model (Elo over the bracket). WTA points table.

Career highs

Ranking · last 12 monthsbestnow
No. 367No. 695
No. 370 · 14 Jul 2025No. 367 · 21 Jul 2025No. 372 · 28 Jul 2025No. 388 · 18 Aug 2025No. 383 · 25 Aug 2025No. 433 · 8 Sep 2025No. 414 · 15 Sep 2025No. 434 · 22 Sep 2025No. 436 · 13 Oct 2025No. 467 · 20 Oct 2025No. 462 · 27 Oct 2025No. 470 · 3 Nov 2025No. 473 · 10 Nov 2025No. 444 · 17 Nov 2025No. 446 · 24 Nov 2025No. 449 · 1 Dec 2025No. 452 · 8 Dec 2025No. 452 · 15 Dec 2025No. 449 · 22 Dec 2025No. 449 · 29 Dec 2025No. 448 · 5 Jan 2026No. 473 · 12 Jan 2026No. 484 · 19 Jan 2026No. 486 · 2 Feb 2026No. 486 · 9 Feb 2026No. 487 · 16 Feb 2026No. 504 · 23 Feb 2026No. 522 · 2 Mar 2026No. 546 · 16 Mar 2026No. 538 · 30 Mar 2026No. 535 · 6 Apr 2026No. 538 · 13 Apr 2026No. 539 · 20 Apr 2026No. 547 · 4 May 2026No. 605 · 18 May 2026No. 638 · 25 May 2026No. 638 · 30 May 2026No. 638 · 1 Jun 2026No. 661 · 8 Jun 2026No. 661 · 17 Jun 2026No. 654 · 18 Jun 2026No. 654 · 22 Jun 2026No. 690 · 29 Jun 2026No. 695 · 6 Jul 2026No. 695 · 13 Jul 2026
12 mo agonow
Umpiry Rating 1483 · peak 1514 · 2025Umpiry rank #1040 · WTA #691▼349

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

Hard21–25 (46%)

Career record

21–25W–L

Career surface record

Hard21–25 (46%)

Recent results

W
vsVaraksina A.
W50 Brisbane · Round of 16 · hard
6-27-67
W
vsHule P.
W50 Brisbane · Round of 32 · hard
6-36-2
L
vsWei S.
W50 Brisbane · Quarter-final · hard
1-62-6
L
vsCross K.
W75 Toronto · Round of 32 · hard
6-22-63-6
L
vsNugroho P.
Jinan 125 · Qual. Q1 · hard
7-673-65-7
L
vsMatsuda M.
W100 Incheon · Round of 32 · hard
4-66-42-6
W
vsYang Y.
W35 Shenyang · Round of 32 · hard
6-16-3
L
vsFalei A.
W35 Shenyang · Round of 16 · hard
1-61-6
W
vsLiu K.
W50 Guiyang · Round of 32 · hard
7-6106-2
L
vsRen Y.
W50 Guiyang · Round of 16 · hard
6-24-63-6
W
vsSato H.
W35 Nakhon Pathom · Round of 32 · hard
6-46-2
L
vsKu Y.
W35 Nakhon Pathom · Round of 16 · hard
0-62-6
L
vsLee E.
W35 Nakhon Pathom · Round of 32 · hard
6-703-6
L
vsGuerrero Alvarez E.
W50 Ourense · Round of 32 · hard
3-64-6
L
vsNishino N.
W35 Roehampton · Round of 32 · hard
4-64-6

More Japan players

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

Explore the rankings

WTA rankingsLive rankingsRace to the FinalsElo rankingsHard-court Elo

Frequently asked questions

When was Ayumi Koshiishi born?

Ayumi Koshiishi was born on 28 July 2000 (25 years old).

Where is Ayumi Koshiishi from?

Ayumi Koshiishi is from Japan.

How good is Ayumi Koshiishi on hard?

Ayumi Koshiishi's hard-court record stands at 21-25, a 46% win rate.