Guillaume Dalmasso: Ranking, Schedule & Stats
Guillaume Dalmasso is a professional tennis player from France, born 14 October 2002. The Frenchman competes on the ATP Tour. The Frenchman was born in Metz.
This page tracks Guillaume Dalmasso'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 season2026Dalmasso has won 16 of the last 30 first sets
Dalmasso has won 6 of 9 deciding sets
Dalmasso has won 55% of matches on hard
Ratings & strengths
Umpiry ratings · updated dailySurface performanceSurfaces
2026 seasonLast 12 monthsCareerMost matches this season came on hard: 13–9.
Ranking & projection
ATP ranking · not EloATP · not EloRecent results
Last 5Beyond today · rivals & careerBeyond today
Rivals
Most meetings
Most-played rivals. The record is Dalmasso'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 33 matches we have on record. Green is Dalmasso, grey is the same stat by the players they faced.
Aces
| Dalmasso | 761 |
|---|---|
| Opponents | 395 |
Double faults
| Dalmasso | 988 |
|---|---|
| Opponents | 587 |
1st serve in
| Dalmasso | 62% 6,963 / 11,256 |
|---|---|
| Opponents | 62% 7,033 / 11,282 |
1st-serve points won
| Dalmasso | 73% 5,031 / 6,868 |
|---|---|
| Opponents | 68% 4,763 / 7,033 |
Break points converted
| Dalmasso | 41% 427 / 1,029 |
|---|---|
| Opponents | 39% 417 / 1,065 |
Break points saved
| Dalmasso | 61% 648 / 1,065 |
|---|---|
| Opponents | 59% 602 / 1,029 |
1st-serve points won by season
| Season | Dalmasso | Opponents |
|---|---|---|
| 2026 | 71% | 67% |
| 2025 | 73% | 67% |
| 2024 | 72% | 67% |
| 2023 | 67% | 67% |
| 2022 | 68% | 70% |
| Career | 72% | 67% |
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 |
|---|---|---|---|
| Challenger | 2–6 | 25% | 0 |
| ITF / Futures | 52–47 | 53% | 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.
2026 season · 25–23 · W–L 52% · 48 matches
Round played
| Qualifying | 12–8 (60%) |
|---|---|
| R32 | 5–4 (56%) |
| R16 | 1–3 (25%) |
Surface
| Hard | 24–18 (57%) |
|---|---|
| Hard (indoor) | 0–2 (0%) |
| Clay | 1–2 (33%) |
| Grass | 0–1 (0%) |
Tournament level
| Challenger | 12–12 (50%) |
|---|---|
| ITF / Futures | 13–11 (54%) |
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 | 24–16 | 1–2 | 0–1 | 3–3 | 28–22 |
| 2025 | 32–19 | 1–3 | · | 5–8 | 38–30 |
| 2024 | 19–11 | · | · | 1–2 | 20–13 |
| 2023 | 9–11 | · | · | · | 9–11 |
| 2022 | 8–4 | · | · | · | 8–4 |
| Career | 92–61 60% | 2–5 29% | 0–1 0% | 9–13 41% | 103–80 56% |
Record at one tournament
Every edition entered: year, best round reached, wins and losses. Most recent first.
M25+H Ajaccio 1 · Editions 3 · Record 2–4 · Titles 0
| Year | Best round | W | L |
|---|---|---|---|
| 2025 | R16 | 1 | 1 |
| 2024 | R32 | 0 | 1 |
| 2023 | R32 | 1 | 2 |
Season statistics
Each stat is stored as a value–count pair, so seasons can be added together and the rate is always value ÷ count.
2026 season · 2 games summed across the range
| Stat | Value | Count | Rate |
|---|---|---|---|
| Aces | 13 | 2 service games | 6.5 / game |
| Double faults | 10 | 2 service games | 5.0 / game |
| 1st serve in | 95 | 157 serve points | 61% |
| 1st-serve points won | 72 | 95 1st serves in | 76% |
| Break points saved | 14 | 20 faced | 70% |
Value is what happened (aces hit, points won), count is how often it could (service games, points played). Adding seasons adds both — the rate is never averaged from percentages.
More on Umpiry · discovery
More players from France
All →Frequently asked · Guillaume DalmassoFrequently asked
When was Guillaume Dalmasso born?
Guillaume Dalmasso was born on 14 October 2002 (23 years old).
Where is Guillaume Dalmasso from?
Guillaume Dalmasso is from France, born in Metz on 14 October 2002.
Cite this
Guillaume Dalmasso is ranked No. 639 in the ATP singles rankings with 57 points. Umpiry, "Guillaume Dalmasso: Ranking, Schedule & Stats", https://umpiry.com/players/guillaume-dalmasso-fra?utm_source=cite (as of 12 October 2026).