H2H data updated: 2026-09-03 00:00 UTC
Daniel Altmaier holds a 1–0 lead over Chun-Hsin Tseng in their ATP head-to-head. Across 1 main-draw meeting, Daniel Altmaier leads 1–0 on clay. Most recently, Daniel Altmaier won the 2025 Munich Open first round 7-6(5) 7-6(5).
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Daniel Altmaier | 7-6(5) 7-6(5) | Chun-Hsin Tseng | Match data | Apr 17, 2025* | R32 | Munich Open | ATP 500 | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daniel Altmaier | #57 | #44 | 1,148 | 1,774 | 80 | 133 | 37.6% | 0 | 0 | 0 | 0 | 0 | 0 |
| Chun-Hsin Tseng | #221 | #83 | 648 | 1,611 | 9 | 30 | 23.1% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Daniel Altmaier | Chun-Hsin Tseng | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 2018 | 0–1 | 0.0% | — | 1,494 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 2019 | 0–1 | 0.0% | #305 | 1,472 | 0 | 0 |
| 18 | 2017 | 2–3 | 40.0% | #275 | 1,540 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2019 | 0–1 | 0.0% | #279 | 1,530 | 0 | 0 | 2022 | 3–8 | 27.3% | #115 | 1,511 | 0 | 0 |
| 21 | 2020 | 3–3 | 50.0% | #130 | 1,670 | 0 | 0 | 2023 | 1–5 | 16.7% | #298 | 1,513 | 0 | 0 |
| 22 | 2021 | 7–8 | 46.7% | #84 | 1,725 | 0 | 0 | 2024 | 1–2 | 33.3% | #119 | 1,485 | 0 | 0 |
| 23 | 2022 | 5–21 | 19.2% | #94 | 1,564 | 0 | 0 | 2025 | 4–12 | 25.0% | #124 | 1,483 | 0 | 0 |
| 24 | 2023 | 14–22 | 38.9% | #56 | 1,648 | 0 | 0 | 2026 | 0–1 | 0.0% | #221 | 1,426 | 0 | 0 |
| 25 | 2024 | 12–22 | 35.3% | #89 | 1,629 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2025 | 22–28 | 44.0% | #46 | 1,758 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2026 | 15–25 | 37.5% | #57 | 1,692 | 0 | 0 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Daniel Altmaier | Chun-Hsin Tseng | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 18 | 2017 | — | — | — | — | 0 | 2 | 2 | 0.0% | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2019 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2022 | 3 | 6 | 9 | 33.3% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 21 | 2020 | 0 | 2 | 2 | 0.0% | 3 | 1 | 4 | 75.0% | — | — | — | — | 2023 | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 22 | 2021 | 1 | 1 | 2 | 50.0% | 6 | 6 | 12 | 50.0% | 0 | 1 | 1 | 0.0% | 2024 | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 23 | 2022 | 2 | 11 | 13 | 15.4% | 1 | 6 | 7 | 14.3% | 2 | 4 | 6 | 33.3% | 2025 | 1 | 4 | 5 | 20.0% | 3 | 6 | 9 | 33.3% | 0 | 2 | 2 | 0.0% |
| 24 | 2023 | 4 | 12 | 16 | 25.0% | 10 | 8 | 18 | 55.6% | 0 | 2 | 2 | 0.0% | 2026 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 25 | 2024 | 7 | 10 | 17 | 41.2% | 4 | 11 | 15 | 26.7% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2025 | 15 | 18 | 33 | 45.5% | 6 | 7 | 13 | 46.2% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2026 | 3 | 10 | 13 | 23.1% | 8 | 11 | 19 | 42.1% | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 32 | 64 | 96 | 33.3% | 38 | 53 | 91 | 41.8% | 10 | 16 | 26 | 38.5% | — | 5 | 18 | 23 | 21.7% | 4 | 9 | 13 | 30.8% | 0 | 3 | 3 | 0.0% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 209/213 of Daniel Altmaier's and 39/41 of Chun-Hsin Tseng's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Daniel Altmaier | Chun-Hsin Tseng | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 16 | — | —/— | — | — | — | — | — | — | — | — | — | 2018 | 1/1 | 3.0 | 6.0 | 54.9% | 70.0% | 46.3% | 40.0% | 50.0% | 59.3% | 33.7% |
| 17 | — | —/— | — | — | — | — | — | — | — | — | — | 2019 | 1/1 | 7.0 | 4.0 | 61.5% | 64.3% | 40.0% | 66.7% | 33.3% | 54.9% | 35.9% |
| 18 | 2017 | 5/5 | 8.0 | 3.0 | 60.9% | 71.1% | 44.6% | 56.4% | 32.9% | 60.5% | 28.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2019 | 1/1 | 2.0 | 3.0 | 59.1% | 46.2% | 33.3% | 0.0% | 50.0% | 40.9% | 31.9% | 2022 | 11/11 | 2.5 | 4.6 | 56.6% | 64.8% | 48.5% | 52.4% | 30.5% | 57.7% | 35.0% |
| 21 | 2020 | 6/6 | 5.7 | 2.8 | 57.7% | 69.1% | 45.9% | 68.5% | 31.2% | 58.7% | 37.5% | 2023 | 6/6 | 2.8 | 2.8 | 63.8% | 62.3% | 48.3% | 64.2% | 28.7% | 57.9% | 28.5% |
| 22 | 2021 | 15/15 | 5.6 | 2.9 | 59.2% | 71.6% | 47.5% | 68.3% | 47.6% | 61.6% | 36.4% | 2024 | 3/3 | 2.7 | 1.3 | 55.3% | 64.3% | 53.9% | 39.3% | 48.8% | 59.3% | 43.3% |
| 23 | 2022 | 26/26 | 6.8 | 2.7 | 61.2% | 69.6% | 46.0% | 59.0% | 37.1% | 60.5% | 32.0% | 2025 | 16/16 | 4.0 | 2.8 | 57.9% | 65.9% | 49.3% | 57.8% | 39.5% | 59.1% | 35.3% |
| 24 | 2023 | 35/36 | 5.9 | 2.3 | 65.7% | 68.6% | 51.6% | 61.3% | 38.7% | 62.8% | 34.7% | 2026 | 1/3 | 0.0 | 4.0 | 71.0% | 63.0% | 25.0% | 57.0% | 0.0% | 52.0% | 31.0% |
| 25 | 2024 | 34/34 | 5.9 | 2.6 | 63.2% | 69.9% | 48.5% | 56.5% | 37.3% | 61.8% | 34.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2025 | 47/50 | 7.7 | 2.5 | 59.6% | 71.8% | 46.4% | 55.1% | 36.3% | 61.6% | 33.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2026 | 40/40 | 6.5 | 3.1 | 63.8% | 70.2% | 46.9% | 51.5% | 34.1% | 61.6% | 33.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 209/213 | 6.6 | 2.7 | 62.2% | 70.1% | 47.6% | 57.2% | 37.2% | 61.5% | 33.8% | — | 39/41 | 3.2 | 3.4 | 58.6% | 64.9% | 48.3% | 55.6% | 35.1% | 58.2% | 34.7% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Daniel Altmaier | Chun-Hsin Tseng | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 1495 | 105.9 | -0.89 | +0.47 | 0.829 | 46.7% | — | — | — | 33.3% | -0.67 | 0–1 | — | — | -0.04 |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1473 | 105.6 | -1.96 | -1.56 | 0.797 | 46.2% | — | — | — | 0.0% | -2.00 | — | — | — | -0.03 |
| 18 | 2017 | 1541 | 104.5 | -1.83 | -2.08 | 0.731 | 44.9% | — | — | +66 | 33.3% | -1.17 | 2–0 | 2–2 (50%) | — | +0.15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2019 | 1530 | 102.6 | -2.67 | -4.21 | 0.540 | 36.3% | — | — | — | 0.0% | -4.00 | — | — | — | 0.00 | 2022 | 1512 | 115.9 | -3.31 | -0.25 | 0.827 | 46.2% | +1 | — | — | 25.0% | -1.75 | 1–2 (33%) | 2–4 (33%) | — | +0.73 |
| 21 | 2020 | 1670 | 121.4 | -2.65 | +1.70 | 0.909 | 48.3% | — | +46 | — | 58.8% | -0.18 | 0–1 | 3–1 (75%) | — | -0.16 | 2023 | 1513 | 106.3 | -3.48 | -2.03 | 0.677 | 44.3% | +11 | — | — | 25.0% | -1.44 | 1–1 | 1–4 (20%) | — | +0.11 |
| 22 | 2021 | 1726 | 125.4 | -2.00 | -0.47 | 0.947 | 49.7% | — | +75 | — | 45.7% | 0.00 | 3–4 (43%) | 1–5 (17%) | — | -0.06 | 2024 | 1486 | 108.9 | -1.12 | -0.66 | 1.063 | 51.7% | — | — | — | 50.0% | +0.75 | — | — | — | +0.29 |
| 23 | 2022 | 1564 | 125.6 | -1.76 | -3.41 | 0.811 | 46.4% | -64 | +115 | +4 | 26.9% | -1.31 | 3–6 (33%) | 3–8 (27%) | — | -0.18 | 2025 | 1483 | 115.0 | -3.57 | -1.43 | 0.863 | 47.5% | -30 | +122 | — | 30.8% | -1.10 | 1–3 (25%) | 3–8 (27%) | — | +0.28 |
| 24 | 2023 | 1648 | 137.5 | -1.07 | -0.53 | 0.932 | 48.9% | -114 | +131 | — | 44.2% | -0.29 | 3–10 (23%) | 6–10 (38%) | — | +0.65 | 2026 | 1426 | 96.1 | -0.46 | -2.18 | 0.646 | 42.0% | — | — | — | 0.0% | -3.50 | — | — | — | -0.02 |
| 25 | 2024 | 1630 | 131.3 | -1.48 | -1.33 | 0.893 | 48.3% | -32 | +35 | — | 40.7% | -0.52 | 3–5 (38%) | 12–9 (57%) | — | +0.54 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2025 | 1758 | 141.9 | -1.65 | -1.43 | 0.865 | 47.6% | -36 | -1 | -218 | 43.1% | -0.49 | 8–7 (53%) | 10–13 (43%) | — | +0.62 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2026 | 1693 | 131.4 | -2.36 | -1.21 | 0.878 | 47.9% | -61 | +40 | -112 | 37.8% | -0.81 | 7–4 (64%) | 8–10 (44%) | — | -1.70 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1775 | 137.0 | -1.74 | -1.34 | 0.877 | 47.9% | -56 | +63 | -74 | 40.2% | -0.61 | 29–37 (44%) | 45–58 (44%) | 99.6 | -0.07 | — | 1611 | 113.7 | -3.10 | -1.10 | 0.830 | 46.8% | -5 | +122 | — | 27.7% | -1.33 | 3–7 (30%) | 6–16 (27%) | 91.6 | +3.38 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Arthur Fils | 3 | 3 | 6 | Feb 7, 2025 | H2H |
| Frances Tiafoe | 0 | 5 | 5 | Jun 20, 2026 | H2H |
| Felix Auger-Aliassime | 2 | 3 | 5 | May 26, 2026 | H2H |
| Alexander Zverev | 1 | 4 | 5 | May 9, 2026 | H2H |
| Miomir Kecmanovic | 1 | 3 | 4 | Mar 4, 2026 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Sebastian Baez | 0 | 2 | 2 | Mar 5, 2026 | H2H |
| Christopher O'Connell | 1 | 1 | 2 | Jul 29, 2025 | H2H |
| Alexei Popyrin | 0 | 2 | 2 | Jan 18, 2023 | H2H |
| Joao Sousa | 0 | 2 | 2 | May 24, 2022 | H2H |
| Zizou Bergs | 0 | 1 | 1 | Aug 26, 2025 | H2H |