United KingdomWilliam Jansen: Ranking, Schedule & Stats
William Jansen is a professional tennis player from United Kingdom, born 6 December 2004. The Briton plays left-handed. The Briton was born in London.
This page tracks William Jansen'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.
Biographical details (birthplace, residence, coach, height, weight) sourced from Wikidata (CC0 public domain).
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 →| Grass | 0–2 (0%) |
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Career record
By level →| Career win–loss | 0–2W–L |
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Career surface record
Year by year →| Grass | 0–2 (0%) |
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Titles & lost finals by tournament level
No ATP tour-level final on record for William Jansen — 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 Jansen's wins–losses across all matches we have, qualifying excluded.
 Jansen | 0–22 meetings | Kim |
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| Jansen | 1–12 meetings | De Jonge |
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| Jansen | 1–12 meetings | Palan |
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| Jansen | 0–22 meetings | Weightman |
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More United Kingdom players
All players →Frequently asked questions
When was William Jansen born?
William Jansen was born on 6 December 2004 (21 years old).
Where is William Jansen from?
William Jansen is from United Kingdom, born in London on 6 December 2004.
Is William Jansen right or left-handed?
William Jansen plays left-handed.
Who is William Jansen's coach?
William Jansen is coached by David Felgate.
Career serve & return
Absolute totals across the 2 matches we have on record. Green is Jansen, 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.
Career overview
| Level | W–L | Win % | Win rate as a bar | Titles |
|---|---|---|---|---|
| ITF / Futures | 23–24 | 49% | 0 |
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. Pick a season from the list or click a bar.
| Round 1 | 3–2 (60%) |
|---|---|
| Round 2 | 1–2 (33%) |
| Quarter-final | 1–0 (100%) |
| Semi-final | 0–1 (0%) |
| Q1 | 1–2 (33%) |
| Q3 | 1–0 (100%) |
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 | 5–4 | · | 2–3 | · | 7–7 |
| 2025 | 2–3 | · | 0–1 | 7–3 | 9–7 |
| 2024 | 12–4 | · | 0–1 | 2–2 | 14–7 |
| 2023 | 5–5 | · | 1–2 | · | 6–7 |
| 2022 | 9–9 | · | 2–3 | · | 11–12 |
| 2021 | · | · | 0–1 | · | 0–1 |
| Career | 33–2557% | · | 5–1131% | 9–564% | 47–4153% |
Matches
The latest 15 matches, main draw and qualifying separately. Draw shows the position in the draw and how the player got in.