JapanN. Koizumi: Ranking, Schedule & Stats
N. Koizumi is a professional tennis player from Japan, born 11 June 2003. The Japanese competes on the ATP Tour.
This page tracks N. Koizumi'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
0–1 last 1Ranking Projection
Trajectory from our weekly snapshots. How the projection works. ATP points table.
Freshness
6 days rest · 1 match, 17 games (7d)
Recent on-court load (higher = fresher), updated daily. About
Career highs
Ranking trajectory from our weekly snapshots (last ~12 months); peak rating and longest tour-level win streak from our match records. What Umpiry rank means.
Recent surface record
By season →| Hard | 0–1 (0%) |
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Career record
By level →| Career win–loss | 0–1W–L |
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Career surface record
Year by year →| Hard | 0–1 (0%) |
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Titles & lost finals by tournament level
No ATP tour-level final on record for N. Koizumi — either they have not reached one, or we do not have it in our data.
| Grand Slam | none |
|---|---|
| ATP Masters 1000 | none |
| ATP 500 | none |
| ATP 250 | none |
| Challenger | none |
| ITF / Futures | none |
Recent results
ITF
Not counted in career, form or surface stats.
Head-to-head rivals
Most-played rivals. The record is Koizumi's wins–losses across all matches we have, qualifying excluded.
 Koizumi | 2–13 meetings | Kawahashi |
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| Koizumi | 2–02 meetings | Van Herzeele |
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More Japan players
All players →Explore the rankings
Frequently asked questions
When was N. Koizumi born?
N. Koizumi was born on 11 June 2003 (23 years old).
Where is N. Koizumi from?
N. Koizumi is from Japan.
Career serve & return
Absolute totals across the 1 matches we have on record. Green is Koizumi, grey is the same stat by the players they faced.
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.
Season breakdown
Wins and losses in one season, split by round reached, surface, tournament level and opponent ranking band. Pick a season from the list or click a bar.
| Qualifying | 3–2 (60%) |
|---|---|
| R32 | 4–1 (80%) |
| R16 | 2–2 (50%) |
| SF | 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 | 28–13 | 1–1 | · | · | 29–14 |
| 2025 | 4–5 | 3–1 | · | · | 7–6 |
| 2024 | 1–2 | 8–6 | · | · | 9–8 |
| 2023 | 1–2 | · | · | · | 1–2 |
| Career | 34–2261% | 12–860% | · | · | 46–3061% |