H2H data updated: 2026-10-08 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Alexandre Muller vs Lukas Klein.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Alexandre Muller | 6-4 6-4 | Lukas Klein | Match data | Feb 19, 2024 | Q2 | Qatar Open | ATP 250 | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alexandre Muller | #133 | #38 | 1,403 | 1,816 | 57 | 79 | 41.9% | 0 | 0 | 0 | 0 | 1 | 1 |
| Lukas Klein | #288 | #109 | 544 | 1,736 | 10 | 16 | 38.5% | 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 | Alexandre Muller | Lukas Klein | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | 2017 | 0–1 | 0.0% | #357 | 1,468 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 2019 | 0–1 | 0.0% | #234 | 1,544 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | 2021 | 2–4 | 33.3% | #258 | 1,560 | 0 | 0 |
| 24 | 2021 | 1–3 | 25.0% | #224 | 1,551 | 0 | 0 | 2022 | 0–1 | 0.0% | #136 | 1,559 | 0 | 0 |
| 25 | — | — | — | — | — | — | — | 2023 | 0–1 | 0.0% | #170 | 1,559 | 0 | 0 |
| 26 | 2023 | 9–14 | 39.1% | #81 | 1,646 | 0 | 0 | 2024 | 8–9 | 47.1% | #136 | 1,692 | 0 | 0 |
| 27 | 2024 | 17–20 | 45.9% | #67 | 1,680 | 0 | 0 | 2025 | 0–1 | 0.0% | #142 | 1,621 | 0 | 0 |
| 28 | 2025 | 24–27 | 47.1% | #43 | 1,739 | 0 | 1 | — | — | — | — | — | — | — |
| 29 | 2026 | 6–13 | 31.6% | #133 | 1,654 | 0 | 1 | — | — | — | — | — | — | — |
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 | Alexandre Muller | Lukas Klein | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 20 | 2017 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% |
| 24 | 2021 | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | 2022 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 26 | 2023 | 3 | 7 | 10 | 30.0% | 5 | 6 | 11 | 45.5% | 1 | 1 | 2 | 50.0% | 2024 | 6 | 6 | 12 | 50.0% | 2 | 3 | 5 | 40.0% | — | — | — | — |
| 27 | 2024 | 9 | 12 | 21 | 42.9% | 7 | 7 | 14 | 50.0% | 1 | 1 | 2 | 50.0% | 2025 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 28 | 2025 | 13 | 15 | 28 | 46.4% | 11 | 9 | 20 | 55.0% | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 4 | 5 | 9 | 44.4% | 2 | 7 | 9 | 22.2% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 30 | 42 | 72 | 41.7% | 25 | 31 | 56 | 44.6% | 2 | 6 | 8 | 25.0% | — | 6 | 9 | 15 | 40.0% | 3 | 5 | 8 | 37.5% | 1 | 2 | 3 | 33.3% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 133/137 of Alexandre Muller's and 25/26 of Lukas Klein'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 | Alexandre Muller | Lukas Klein | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 20 | 2017 | 1/1 | 4.0 | 5.0 | 58.0% | 68.1% | 45.6% | 65.0% | 43.8% | 58.6% | 36.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 1/1 | 3.0 | 5.0 | 56.3% | 53.3% | 45.7% | 46.2% | 37.5% | 50.0% | 34.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | — | —/— | — | — | — | — | — | — | — | — | — | 2021 | 5/6 | 2.8 | 3.6 | 63.4% | 68.5% | 46.9% | 57.7% | 38.8% | 61.1% | 36.3% |
| 24 | 2021 | 4/4 | 6.3 | 2.8 | 64.4% | 61.7% | 48.7% | 41.7% | 54.6% | 57.5% | 35.2% | 2022 | 1/1 | 12.0 | 6.0 | 68.1% | 68.4% | 63.0% | 45.5% | 28.6% | 66.7% | 36.0% |
| 25 | — | —/— | — | — | — | — | — | — | — | — | — | 2023 | 1/1 | 4.0 | 0.0 | 59.4% | 57.9% | 57.7% | 57.1% | 0.0% | 57.8% | 29.3% |
| 26 | 2023 | 23/23 | 3.7 | 1.8 | 64.3% | 65.3% | 51.6% | 53.8% | 42.6% | 59.9% | 36.2% | 2024 | 17/17 | 7.8 | 3.3 | 64.6% | 74.3% | 54.9% | 57.0% | 33.5% | 67.3% | 35.1% |
| 27 | 2024 | 37/37 | 3.5 | 1.9 | 63.9% | 67.9% | 50.4% | 50.4% | 41.0% | 61.7% | 38.0% | 2025 | 1/1 | 11.0 | 4.0 | 59.0% | 70.0% | 55.0% | 50.0% | 40.0% | 64.0% | 39.0% |
| 28 | 2025 | 48/51 | 3.8 | 2.6 | 66.2% | 67.3% | 47.8% | 57.8% | 38.1% | 60.6% | 34.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 19/20 | 3.5 | 2.1 | 67.2% | 63.8% | 45.7% | 62.1% | 32.8% | 57.6% | 33.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 133/137 | 3.7 | 2.2 | 65.2% | 66.3% | 48.9% | 55.1% | 39.5% | 60.2% | 35.8% | — | 25/26 | 6.9 | 3.4 | 64.1% | 72.1% | 53.8% | 56.4% | 33.3% | 65.5% | 35.3% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 | Alexandre Muller | Lukas Klein | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | 2017 | 1468 | 97.9 | -2.55 | -1.26 | 0.889 | 47.9% | — | — | — | 40.0% | -0.40 | 0–1 | 0–2 | — | +0.14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 1503 | 101.8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 1545 | 110.7 | +1.37 | -2.92 | 0.699 | 42.3% | — | — | — | 0.0% | -2.67 | — | — | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 1548 | 106.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1561 | 110.3 | +0.25 | -1.57 | 0.933 | 48.8% | — | +12 | — | 42.9% | -0.43 | 0–2 | 1–1 | — | +0.01 |
| 24 | 2021 | 1551 | 116.1 | -1.35 | -0.95 | 0.827 | 46.6% | +15 | — | — | 38.5% | -0.69 | 0–2 | 0–1 | — | -0.42 | 2022 | 1560 | 105.6 | -1.45 | -1.49 | 1.079 | 49.7% | — | — | — | 40.0% | -1.00 | 0–1 | 1–0 | — | +0.12 |
| 25 | 2022 | 1513 | 98.3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1560 | 107.4 | +1.15 | -1.85 | 0.695 | 44.3% | — | — | — | 0.0% | -3.00 | — | — | — | -0.08 |
| 26 | 2023 | 1647 | 132.9 | -2.09 | +0.12 | 0.902 | 48.2% | -29 | -41 | — | 40.4% | -0.96 | 2–4 (33%) | 4–6 (40%) | 98.1 | -1.00 | 2024 | 1692 | 127.5 | +1.62 | +0.01 | 1.073 | 50.6% | +20 | -109 | — | 52.1% | +0.15 | 3–7 (30%) | 9–7 (56%) | 100.2 | -0.34 |
| 27 | 2024 | 1680 | 137.7 | -2.22 | +1.37 | 0.993 | 49.9% | -40 | +7 | — | 46.7% | -0.09 | 3–3 (50%) | 11–9 (55%) | 103.8 | +0.88 | 2025 | 1621 | 113.5 | -0.48 | +0.92 | 1.083 | 51.0% | — | — | — | 25.0% | -0.25 | — | 0–1 | — | -0.23 |
| 28 | 2025 | 1740 | 144.8 | -2.38 | -0.32 | 0.886 | 48.2% | -36 | +43 | -152 | 43.9% | -0.64 | 16–6 (73%) | 17–15 (53%) | 111.4 | -1.81 | 2026 | 1621 | 101.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 1655 | 121.4 | -4.24 | -1.41 | 0.792 | 45.8% | +59 | +3 | — | 34.9% | -1.21 | 1–1 | 4–2 (67%) | — | -0.52 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1817 | 136.1 | -2.49 | +0.02 | 0.900 | 48.3% | -21 | +10 | -152 | 42.3% | -0.64 | 22–17 (56%) | 36–35 (51%) | 108.2 | -1.96 | — | 1737 | 119.7 | +1.12 | -0.40 | 1.024 | 50.0% | +20 | -64 | — | 46.6% | -0.15 | 3–10 (23%) | 11–9 (55%) | 98.1 | -2.00 |
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 |
|---|---|---|---|---|---|
| Stefanos Tsitsipas | 0 | 4 | 4 | May 26, 2026 | H2H |
| Alexander Zverev | 1 | 3 | 4 | Jan 21, 2026 | H2H |
| Miomir Kecmanovic | 3 | 1 | 4 | Jan 8, 2026 | H2H |
| Felix Auger-Aliassime | 1 | 2 | 3 | Oct 30, 2025 | H2H |
| Francisco Cerundolo | 2 | 1 | 3 | Mar 22, 2025 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| James Duckworth | 1 | 1 | 2 | Nov 7, 2024 | H2H |
| Sebastian Korda | 0 | 1 | 1 | Jan 14, 2025 | H2H |
| Jiri Lehecka | 0 | 1 | 1 | Nov 9, 2024 | H2H |
| Tomas Martin Etcheverry | 1 | 0 | 1 | Nov 8, 2024 | H2H |
| Nicolas Jarry | 0 | 1 | 1 | Sep 22, 2024 | H2H |