12 Sep 1998
Born
188 cm
Height
80 kg
Weight
right-handed
Plays
2014
Turned pro
Kempen, Germany
Birthplace
$754,953
Prize money (season)
$5,015,534
Prize money (career)
Ranking trend
best #55Career record
96 matches42–54
Win–loss
39%
Hard · 18–28
50%
Clay · 19–19
42%
Grass · 5–7
2025
63 matches · 31–32 · 49.2%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 4 | 1 | — | 20 | 9 | 70% | 23% | 15 | 20 | 0–2 |
| Hardcourt Indoor | 16 | 9 | — | 128 | 26 | 74% | 32% | — | — | 4–2 |
| Hardcourt Outdoor | 22 | 8 | — | 170 | 55 | 72% | 34% | 212 | 189 | 4–6 |
| Red Clay | 21 | 13 | — | 103 | 43 | 67% | 30% | 169 | 136 | 0–3 |
2024
62 matches · 29–33 · 46.8%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 2 | 1 | — | 19 | 11 | 79% | 41% | 94 | 84 | 2–1 |
| Hardcourt Indoor | 7 | 4 | — | 71 | 11 | 77% | 18% | — | — | 2–1 |
| Hardcourt Outdoor | 14 | 5 | — | 77 | 46 | 70% | 32% | 72 | 132 | 4–4 |
| Red Clay | 39 | 19 | — | 203 | 89 | 68% | 42% | 88 | 82 | 14–12 |
2023
35 matches · 13–22 · 37.1%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 2 | 0 | — | 12 | 4 | 63% | 60% | 42 | 40 | 0–1 |
| Hardcourt Indoor | 6 | 2 | — | 25 | 10 | 71% | 42% | — | — | 0–1 |
| Hardcourt Outdoor | 9 | 1 | — | 81 | 27 | 67% | 33% | 125 | 145 | 2–4 |
| Red Clay | 18 | 10 | 1 | 90 | 40 | 68% | 36% | 144 | 144 | 4–4 |
M = matches · W = wins · DF = double faults · BP conv. = break points converted · UE = unforced errors · TB = tiebreaks won–lost.
FT
Montreal
hard
B. Nakashima
(28)
D. Altmaier
6
2
6
1
2
0
FT
Montreal
hard
A. Vukić
(Q)
D. Altmaier
7
6
6
7
4
6
1
2
FT
Kitzbuhel
clay
A. Molčan
D. Altmaier
6
3
3
6
7
5
2
1
FT
Kitzbuhel
clay
D. Altmaier
R. Collignon
(7)
6
3
6
2
2
0
FT
Bastad
clay
D. Altmaier
L. Darderi
(2)
4
6
4
6
0
2
FT
Bastad
clay
D. Altmaier
H. Gaston
6
2
7
5
2
0
FT
Wimbledon, Men
grass
A. Molčan
D. Altmaier
6
4
3
6
7
5
6
2
3
1
FT
Eastbourne
grass
D. Altmaier
Z. Bergs
3
6
2
3
0
1
FT
Eastbourne
grass
D. Altmaier
A. Kovačević
6
4
7
6
2
0
FT
Halle
grass
D. Altmaier
(WC)
F. Tiafoe
1
6
3
6
0
2
FT
Halle
grass
D. Altmaier
(WC)
D. Medvedev
(4)
6
4
6
7
6
4
2
1
FT
Halle
grass
H. Hurkacz
D. Altmaier
(WC)
6
3
3
6
5
7
1
2
FT
Halle
grass
N. Basilashvili
(Q)
D. Altmaier
(WC)
5
7
4
6
0
2
FT
Stuttgart
grass
D. Altmaier
F. Tiafoe
(6)
6
7
6
4
4
6
1
2
FT
Roland Garros
clay
F. Auger-Aliassime
(4)
D. Altmaier
4
6
6
4
4
6
6
1
7
6
3
2
FT
Hamburg
clay
T. Paul
(6)
D. Altmaier
6
2
7
5
2
0
FT
Hamburg
clay
D. Altmaier
B. Shelton
(2)
4
6
7
6
6
4
2
1
FT
Hamburg
clay
D. Altmaier
R. Hijikata
(Q)
7
5
6
2
2
0
FT
Valencia, Spain
clay
D. Lajović
(A)
D. Altmaier
(5)
3
6
7
5
7
6
2
1
FT
Valencia, Spain
clay
H. Squire
(Q)
D. Altmaier
(5)
3
6
3
6
0
2