Natsumi Kawaguchi: Ranking, Schedule & Stats
Natsumi Kawaguchi is a professional tennis player from Japan, born 28 June 2002. The Japanese competes on the WTA Tour and plays left-handed.
This page tracks Natsumi Kawaguchi'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.
Current form
2026 season2026Ratings & strengths
Umpiry ratings · updated dailySurface performanceSurfaces
2026 seasonLast 12 monthsCareerRanking & projection
WTA ranking · not EloWTA · not EloRecent results
Last 4Beyond today · rivals & careerBeyond today
Rivals
Most meetings
Most-played rivals. The record is Kawaguchi's wins–losses across all matches we have, qualifying excluded.
Season
Current seasonResults
Season breakdown
2026 · by level, surface, opponent, sets2026Career
Career overview
More career statistics
Career serve & return
Absolute totals across the 4 matches we have on record. Green is Kawaguchi, grey is the same stat by the players they faced.
Aces
| Kawaguchi | 367 |
|---|---|
| Opponents | 210 |
Double faults
| Kawaguchi | 631 |
|---|---|
| Opponents | 777 |
1st serve in
| Kawaguchi | 66% 10,332 / 15,736 |
|---|---|
| Opponents | 65% 10,160 / 15,707 |
1st-serve points won
| Kawaguchi | 62% 6,367 / 10,332 |
|---|---|
| Opponents | 59% 5,983 / 10,160 |
Break points converted
| Kawaguchi | 49% 952 / 1,926 |
|---|---|
| Opponents | 46% 850 / 1,834 |
Break points saved
| Kawaguchi | 54% 984 / 1,834 |
|---|---|
| Opponents | 51% 974 / 1,926 |
1st-serve points won by season
| Season | Kawaguchi | Opponents |
|---|---|---|
| 2026 | 63% | 59% |
| 2025 | 63% | 59% |
| 2024 | 59% | 61% |
| 2023 | 61% | 59% |
| 2022 | 61% | 59% |
| 2021 | 63% | 60% |
| 2019 | 60% | 56% |
| Career | 62% | 59% |
Counted from the match statistics we hold, season by season — the cards above are career totals from our data provider, so the two can differ by a few tenths. Seasons with fewer than three matches on record are left out.
Career win–loss by level
| Level | W–L | Win % | Titles |
|---|---|---|---|
| ITF / Futures | 91–76 | 54% | 3 |
Challenger and ITF matches are shown in grey and are not part of the tour-level total.
Season breakdown
Wins and losses in one season, split by round reached, surface, tournament level and opponent ranking band.
2026 season · 22–19 · W–L 54% · 41 matches
Round played
| Qualifying | 4–9 (31%) |
|---|---|
| R32 | 9–2 (82%) |
| R16 | 5–4 (56%) |
Surface
| Hard | 13–15 (46%) |
|---|---|
| Hard (indoor) | 6–2 (75%) |
| Carpet | 3–2 (60%) |
Tournament level
| Challenger | 22–18 (55%) |
|---|---|
| ITF / Futures | 0–1 (0%) |
Rounds are the round each match was played in, not a ladder: a player enters a 32-draw straight in R32, and team events (United Cup, Davis Cup) are not played through a draw at all — those have their own row. Ranking bands use the opponent's ranking on match day and are cumulative: top 100 includes top 10.
Surface record by season
Each cell is one season on one surface: the number is wins–losses, the colour is the win rate. Carpet is counted as indoor hard.
| Season | Hard | Clay | Grass | I.hard | Total |
|---|---|---|---|---|---|
| 2026 | 13–13 | · | · | 9–4 | 22–17 |
| 2025 | 36–19 | · | · | 4–4 | 40–23 |
| 2024 | 17–16 | · | · | 2–2 | 19–18 |
| 2023 | 19–14 | · | 1–2 | 6–2 | 26–18 |
| 2022 | 15–9 | 4–3 | 4–1 | 4–3 | 27–16 |
| 2021 | 6–3 | · | · | · | 6–3 |
| 2020 | 0–1 | · | · | · | 0–1 |
| 2019 | 13–3 | 4–3 | · | · | 17–6 |
| 2018 | 0–1 | · | · | · | 0–1 |
| Career | 119–79 60% | 8–6 57% | 5–3 63% | 25–15 63% | 157–103 60% |
Record at one tournament
Every edition entered: year, best round reached, wins and losses. Most recent first.
W15 Osaka · Editions 3 · Record 8–3 · Titles 0
Tournament page →| Year | Best round | W | L |
|---|---|---|---|
| 2026 | Quarter-final | 2 | 1 |
| 2024 | Round 1 | 0 | 1 |
| 2023 | Final | 6 | 1 |
More on Umpiry · discovery
Frequently asked · Natsumi KawaguchiFrequently asked
When was Natsumi Kawaguchi born?
Natsumi Kawaguchi was born on 28 June 2002 (24 years old).
Where is Natsumi Kawaguchi from?
Natsumi Kawaguchi is from Japan.
Is Natsumi Kawaguchi right or left-handed?
Natsumi Kawaguchi plays left-handed.
Cite this
Natsumi Kawaguchi is ranked No. 411 in the WTA singles rankings with 150 points. Umpiry, "Natsumi Kawaguchi: Ranking, Schedule & Stats", https://umpiry.com/players/natsumi-kawaguchi-jpn?utm_source=cite (as of 26 September 2026).