John Isner vs Daniel Altmaier Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
J. Isner vs D. Altmaier
John Isner
USA
w
w
w
l
l
w
l
l
w
l
1
Win
1
Played
0
Win
40
Age
27
6'10" (208 cm)
Height
6'3" (191 cm)
660
C. Rank
46
8
Best Rank
46
18
Total Titles
0
0
YTD Titles
0
$15.1M
Career Money
$2.4M
Right-Handed
Plays
Right-Handed
Daniel Altmaier
GER
w
l
l
l
w
w
l
w
w
l
1
Win
1
Played
0
Win
40
Age
27
6'10" (208 cm)
Height
6'3" (191 cm)
660
C. Rank
46
8
Best Rank
46
18
Total Titles
0
0
YTD Titles
0
$15.1M
Career Money
$2.4M
Right-Handed
Plays
Right-Handed
Head-to-head: Isner 1 - 0 Altmaier
They have played 2 sets in total, with John Isner winning 2 and Daniel Altmaier winning 0. The last match between John Isner and Daniel Altmaier was at the Dallas Open - Dallas, 09-02-2023, Round: R2, Surface: I.hard, with John Isner getting the victory 6-3 7-6(1).
| Players | Head To Head Match Wins |
|---|---|
| Isner | 1 |
| Altmaier | 0 |
Last 1 H2H Matches:
(R2) Dallas Open - Dallas(02-09-23)
John Isner
6
7
Daniel Altmaier
3
6
J. Isner vs D. Altmaier H2H Profile
| Stats | ||
|---|---|---|
| $15,094,425 | Career Prize Money | $2,384,945 |
| 61.45% (561-352) | Career Total W/L | 59.38% (424-290) |
| 1 | Indoor | 0 |
| 20 | Titles | 16 |
| 1 | Total H2H Matches | 0 |
| 0% (0-0) | YTD Win/Loss | 44.00% (22-28) |
J. Isner vs D. Altmaier Match Preview:
- Second serve performance recent form: In recent form (last 6 months), John Isner has won 0% of points on their second serve, while Daniel Altmaier has won 45.79%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show John Isner, in recent form, has won 0% of their opponent's second serve points, while Daniel Altmaier has won 42.68%. The same stats for first serve returns are 0% and 22.80% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: John Isner has saved 0% of breakpoints in recent form, whereas Daniel Altmaier has saved 58.08% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year John Isner has won 0% of matches played (W/L 0/0), with Daniel Altmaier winning 49.28% (W/L 34/35) that gives us an overall head-to head prediction overview.
- Best surface: John Isner has their best career surface win % on Grass, winning 66% (W/L 56/29), and worse career win % on I.hard, winning 54% (W/L 76/66). Daniel Altmaier has their best career surface win % on Clay, winning 66% (W/L 208/133), and worse career win % on Grass, winning 35% (W/L 9/17).
- Player level: In the last year, John Isner has played most of their matches on the N/A, winning 0% of matches (W/L 0/0), where as Daniel Altmaier has played most of their matches on the Main tour, winning 40.63% of matches (W/L 13/19). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
- Direct H2H matches: They have played 1 times before with John Isner winning 1 times and Daniel Altmaier being victorious 0 times. They have played 2 sets in total, with John Isner winning 2 and Daniel Altmaier winning 0.
- The last match between John Isner and Daniel Altmaier was at the Dallas Open - Dallas, 09-02-2023, Round: R2, Surface: I.hard, with John Isner getting the victory 6-3 7-6(1).
- Head to head match duration: In past head to head matches, the average match time between these players has been 1:17:6.
- Opponent quality stats: Over the last 12 months, John Isner has played against opponents with an average rank of 0 while Daniel Altmaier has played against players with an average rank of 94.13.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, John Isner has won 0% of deciding sets over the last 12 months, while Daniel Altmaier has won 61% in all matches played on tour.
- Break point conversion: In recent form, John Isner has converted 0% of breakpoint opportunities, and Daniel Altmaier has converted 23.39% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
John Isner vs Daniel Altmaier Editorial Preview By TennisTipster88.
J. Isner vs D. Altmaier H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 1 | H2H Matches Won | 0 |
| 2 | Sets Won | 0 |
| 13 | Games Won | 9 |
| 18 | Aces (Total) | 9 |
| 0 | Total Double Faults | 3 |
| 1:17:6 | Average Match Time | 1:17:6 |
| 80% (44/55) | 1st Serve % | 63% (35/56) |
| 91% (40/44) | 1st Serve Win % | 80% (28/35) |
| 73% (8/11) | 2nd Serve Win % | 62% (13/21) |
| 33% (1/3) | Break Pts Won % | 0% (0/0) |
| 27% (15/56) | Return Points Win % | 13% (7/55) |
| 100% (1/1) | Best‑of‑3 Win % | 0% (0/1) |
| 100% (1/1) | 1st Set Won, Won Match | 0% (0/0) |
| 0% (0/1) | 1st Set Won, Lost Match | 0% (0/0) |
| 0% (0/0) | 1st Set Lost, Won Match | 0% (0/1) |
Recent Performance Stats
2nd Serve Win %: Isner 0%, Altmaier 48%.
Opp 2nd Serve Pts Won: Isner 0%, Altmaier 49%.
Break Points Saved %: Isner 0%, Altmaier 62%.
J. Isner Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 U.S. Open - New York - 28-08-2023 | ||||
R2 Michael MmohM. Mmoh | L | 3-6 4-6 7-6(3) 6-4 7-6(7) | ||
R1  Facundo Diaz AcostaF. Diaz | W | 6-4 6-3 7-6(1) | ||
| Western & Southern Open - Cincinnati - 14-08-2023 | ||||
R1  Jordan ThompsonJ. Thompson | L | 7-6(5) 7-6(2) | ||
| Abierto de Tenis Mifel - Los Cabos - 31-07-2023 | ||||
R2  Stefanos TsitsipasS. Tsitsipas | L | 6-2 6-4 | ||
R1 Rinky HijikataR. Hijikata | W | 6-2 7-6(4) | ||
D. Altmaier Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Moselle Open - Metz - 03-11-2025 | ||||
QF  Lorenzo SonegoL. Sonego | L | 6-4 7-6(6) | ||
R2  Hugo GastonH. Gaston | W | 4-6 6-0 ret. | ||
R1 Arthur RinderknechA. Rinderknech | W | 6-4 6-4 | ||
| Rolex Paris Masters - Paris - 27-10-2025 | ||||
R3  Felix Auger AliassimeF. Auger | L | 3-6 6-3 6-2 | ||
R2  Casper RuudC. Ruud | W | 6-3 7-5 | ||
J. Isner vs D. Altmaier Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 61.45% (561/352) | YTD Win/Loss | 59.38% (424/290) |
| 58.40% (1422/1013) | Sets Win/Loss | 57.31% (957/713) |
| 51.54% (13780/12956) | Games Win/Loss | 52.58% (8392/7567) |
| 64.64% (340/186) | Hard Win/Loss | 59.83% (137/92) |
| 55.41% (87/70) | Clay Win/Loss | 61.00% (208/133) |
| 53.79% (78/67) | Indoor Hard W/L | 59.32% (70/48) |
| 65.88% (56/29) | Grass Win/Loss | 34.62% (9/17) |
| 1.14 | Aces Per Game | 0.48 |
| 14970 | Aces Total | 3775 |
| 0.14 | Double Faults Per Game | 0.17 |
| 1857 | Total Double Faults | 1362 |
| 1:25:12 | Average Match Time | 1:32:16 |
| 485.72 | Average Opponent Rank | 409.5 |
| 69% (48323/70140) | 1st Serve % | 61% (27274/44468) |
| 79% (38033/48323) | 1st Serve Win % | 72% (19548/27274) |
| 56% (12267/21947) | 2nd Serve Win % | 50% (8618/17194) |
| 30% (1160/3810) | Break Points Won % (Total) | 42% (1792/4301) |
| 30% (20799/70185) | Return Points Win % | 39% (17447/44868) |
| 60.00% (87/58) | Slam W/L | 50.00% (18/18) |
| 60.49% (147/96) | Masters W/L | 45.61% (26/31) |
| 44.07% (26/33) | Cups W/L | 50.00% (2/2) |
| 63.85% (242/137) | Main Tour W/L | 40.29% (56/83) |
| 0.00% (0/3) | Tour Finals W/L | 0% (0/0) |
| 69.84% (44/19) | Challenger W/L | 66.05% (142/73) |
| 70.59% (12/5) | Futures W/L | 68.44% (180/83) |
| 62% (464/747) | Best of 3 Sets Win % | 60% (401/664) |
| 59% (97/164) | Best of 5 Sets Win % | 47% (16/34) |
| 60% (558/933) | Tiebreaks Win % (Total) | 56% (144/259) |
| 57% (204/357) | Deciding Set Win % | 56% (114/204) |
| 84% (541/456) | 1st Set Won, Won Match | 88% (418/369) |
| 16% (541/85) | 1st Set Won, Lost Match | 12% (418/49) |
| 29% (371/106) | 1st Set Lost, Won Match | 18% (296/54) |
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