H2H data updated: 2026-09-03 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Alexander Bublik vs Steven Diez.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Steven Diez | 6-4 6-4 | Alexander Bublik | Match data | Aug 5, 2019 | Q1 | Canadian Open | Masters 1000 | Hard |
| Alexander Bublik | 4-6 6-0 6-3 | Steven Diez | Match data | Jun 24, 2019 | Q1 | Eastbourne Open | ATP 250 | Grass |
2 qualifying meetings 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alexander Bublik | #16 | #10 | 3,445 | 2,043 | 205 | 178 | 53.5% | 0 | 0 | 0 | 2 | 7 | 9 |
| Steven Diez | #940 | #134 | 418 | 1,591 | 2 | 8 | 20.0% | 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 | Alexander Bublik | Steven Diez | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | 2016 | 2–2 | 50.0% | #205 | 1,571 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2017 | 3–3 | 50.0% | #117 | 1,633 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 2018 | 1–4 | 20.0% | #162 | 1,613 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 2019 | 13–14 | 48.1% | #56 | 1,726 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2020 | 12–16 | 42.9% | #50 | 1,736 | 0 | 0 | 2014 | 0–1 | 0.0% | #384 | 1,397 | 0 | 0 |
| 24 | 2021 | 33–29 | 53.2% | #36 | 1,758 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 2022 | 30–25 | 54.5% | #37 | 1,849 | 0 | 1 | 2016 | 1–3 | 25.0% | #166 | 1,504 | 0 | 0 |
| 26 | 2023 | 22–24 | 47.8% | #32 | 1,832 | 0 | 3 | 2017 | 0–1 | 0.0% | #306 | 1,466 | 0 | 0 |
| 27 | 2024 | 25–24 | 51.0% | #33 | 1,743 | 0 | 4 | — | — | — | — | — | — | — |
| 28 | 2025 | 37–21 | 63.8% | #11 | 1,973 | 0 | 8 | 2019 | 1–1 | 50.0% | #136 | 1,554 | 0 | 0 |
| 29 | 2026 | 27–16 | 62.8% | #16 | 1,903 | 0 | 9 | 2020 | 0–1 | 0.0% | #179 | 1,566 | 0 | 0 |
| 31 | — | — | — | — | — | — | — | 2022 | 0–1 | 0.0% | #272 | 1,484 | 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 | Alexander Bublik | Steven Diez | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 19 | 2016 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 3 | 2 | 5 | 60.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 8 | 10 | 18 | 44.4% | 1 | 1 | 2 | 50.0% | 4 | 3 | 7 | 57.1% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 9 | 12 | 21 | 42.9% | 3 | 4 | 7 | 42.9% | — | — | — | — | 2014 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 24 | 2021 | 22 | 19 | 41 | 53.7% | 4 | 6 | 10 | 40.0% | 7 | 4 | 11 | 63.6% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 19 | 14 | 33 | 57.6% | 2 | 6 | 8 | 25.0% | 9 | 5 | 14 | 64.3% | 2016 | 1 | 1 | 2 | 50.0% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 26 | 2023 | 10 | 16 | 26 | 38.5% | 3 | 6 | 9 | 33.3% | 9 | 2 | 11 | 81.8% | 2017 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 27 | 2024 | 16 | 14 | 30 | 53.3% | 5 | 6 | 11 | 45.5% | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 16 | 15 | 31 | 51.6% | 16 | 5 | 21 | 76.2% | 5 | 1 | 6 | 83.3% | 2019 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 29 | 2026 | 14 | 5 | 19 | 73.7% | 8 | 8 | 16 | 50.0% | 5 | 3 | 8 | 62.5% | 2020 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | — | 119 | 112 | 231 | 51.5% | 43 | 43 | 86 | 50.0% | 43 | 23 | 66 | 65.2% | — | 1 | 2 | 3 | 33.3% | 1 | 6 | 7 | 14.3% | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 380/384 of Alexander Bublik's and 10/10 of Steven Diez'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 | Alexander Bublik | Steven Diez | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 19 | 2016 | 4/4 | 4.0 | 4.8 | 57.4% | 70.0% | 31.7% | 60.5% | 49.3% | 53.8% | 42.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 6/6 | 14.0 | 6.2 | 58.3% | 75.5% | 42.2% | 54.7% | 36.4% | 61.7% | 33.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 5/5 | 3.4 | 5.6 | 62.0% | 66.4% | 36.7% | 45.5% | 33.3% | 55.8% | 33.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 27/27 | 16.0 | 8.9 | 58.7% | 74.6% | 46.4% | 47.0% | 43.0% | 62.8% | 33.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 28/28 | 9.8 | 5.3 | 57.2% | 75.1% | 44.3% | 61.3% | 36.0% | 62.0% | 33.6% | 2014 | 1/1 | 1.0 | 7.0 | 48.1% | 57.7% | 32.1% | 54.5% | 0.0% | 44.4% | 29.5% |
| 24 | 2021 | 61/62 | 13.6 | 6.7 | 57.1% | 75.7% | 46.0% | 64.2% | 42.5% | 63.2% | 34.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 55/55 | 13.0 | 6.6 | 59.9% | 79.0% | 44.9% | 61.3% | 41.7% | 65.2% | 35.7% | 2016 | 4/4 | 2.8 | 3.8 | 62.1% | 62.3% | 44.9% | 47.0% | 43.3% | 55.6% | 36.7% |
| 26 | 2023 | 46/46 | 11.3 | 7.7 | 59.6% | 78.6% | 45.7% | 59.6% | 39.9% | 65.2% | 34.8% | 2017 | 1/1 | 1.0 | 4.0 | 56.7% | 58.8% | 46.2% | 50.0% | 66.7% | 53.3% | 35.2% |
| 27 | 2024 | 48/49 | 11.6 | 6.6 | 60.1% | 75.5% | 43.8% | 60.5% | 43.8% | 62.7% | 35.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 57/58 | 11.6 | 5.2 | 61.5% | 79.3% | 48.2% | 69.1% | 42.0% | 67.1% | 34.5% | 2019 | 2/2 | 1.5 | 1.0 | 66.7% | 62.4% | 70.6% | 67.5% | 26.7% | 65.1% | 44.1% |
| 29 | 2026 | 43/44 | 11.4 | 3.5 | 66.7% | 75.8% | 49.9% | 63.5% | 36.3% | 67.3% | 34.0% | 2020 | 1/1 | 2.0 | 5.0 | 68.3% | 66.3% | 27.5% | 30.0% | 50.0% | 54.0% | 35.4% |
| 31 | — | —/— | — | — | — | — | — | — | — | — | — | 2022 | 1/1 | 0.0 | 1.0 | 67.7% | 54.8% | 55.0% | 66.7% | 0.0% | 54.8% | 20.4% |
| Career | — | 380/384 | 12.1 | 6.2 | 60.1% | 76.7% | 45.9% | 61.5% | 40.9% | 64.4% | 34.7% | — | 10/10 | 1.8 | 3.4 | 62.2% | 61.1% | 48.2% | 52.4% | 34.3% | 55.9% | 35.6% |
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 | Alexander Bublik | Steven Diez | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 17 | 2014 | 1489 | 100.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2008 | 1487 | 98.6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2015 | 1502 | 100.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2016 | 1571 | 117.0 | -0.93 | +1.37 | 0.928 | 48.4% | +32 | — | — | 50.0% | 0.00 | 1–1 | 0–1 | — | +0.14 | 2010 | 1477 | 103.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 1633 | 113.7 | +0.13 | -1.94 | 0.861 | 47.9% | +12 | — | — | 41.2% | -0.59 | 1–0 | — | — | +0.20 | 2011 | 1464 | 93.6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 1614 | 112.3 | -3.55 | -0.99 | 0.747 | 44.9% | +40 | — | — | 18.2% | -1.91 | 1–0 | 1–1 | — | +0.08 | 2012 | 1450 | 95.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 1726 | 136.5 | -1.62 | -1.41 | 0.892 | 48.3% | -18 | — | -2 | 47.3% | -0.39 | 9–4 (69%) | 12–7 (63%) | — | +0.52 | 2013 | 1423 | 90.7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 1736 | 146.1 | -0.83 | -1.50 | 0.885 | 47.9% | -15 | -119 | — | 40.6% | -0.62 | 5–2 (71%) | 5–5 (50%) | — | -1.93 | 2014 | 1397 | 92.2 | -3.17 | -0.46 | 0.532 | 37.8% | — | — | — | 0.0% | -4.50 | — | — | — | +0.04 |
| 24 | 2021 | 1759 | 145.2 | +0.17 | -1.28 | 0.945 | 49.4% | -21 | -133 | +41 | 53.3% | +0.15 | 11–9 (55%) | 10–13 (43%) | — | +1.36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 1850 | 148.0 | +1.34 | -0.05 | 1.025 | 50.4% | -19 | -249 | +56 | 52.6% | +0.05 | 10–6 (63%) | 13–12 (52%) | — | -0.06 | 2016 | 1505 | 118.7 | -2.88 | -0.89 | 0.827 | 46.2% | — | — | — | 30.0% | -1.40 | 1–1 | 0–1 | — | +0.40 |
| 26 | 2023 | 1833 | 143.1 | +1.37 | -0.14 | 1.000 | 50.2% | -83 | -251 | +189 | 47.4% | -0.29 | 7–8 (47%) | 11–13 (46%) | — | -1.48 | 2017 | 1466 | 101.2 | -1.42 | -1.50 | 0.754 | 44.7% | — | — | — | 0.0% | -2.50 | — | — | — | -0.05 |
| 27 | 2024 | 1744 | 143.0 | -1.43 | +0.14 | 0.947 | 49.3% | +24 | -96 | +200 | 46.5% | -0.24 | 12–3 (80%) | 9–10 (47%) | — | +1.00 | 2018 | 1452 | 97.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 1973 | 151.5 | +3.32 | -0.31 | 1.049 | 51.1% | -111 | -85 | +1 | 61.2% | +0.52 | 8–8 (50%) | 13–10 (57%) | — | -1.60 | 2019 | 1554 | 116.7 | -2.41 | +1.98 | 1.263 | 53.0% | — | — | — | 33.3% | -0.33 | 0–1 | 0–1 | — | -0.09 |
| 29 | 2026 | 1903 | 149.0 | +2.46 | -0.84 | 1.043 | 50.6% | +26 | -68 | +76 | 58.8% | +0.39 | 9–4 (69%) | 17–10 (63%) | — | +0.28 | 2020 | 1566 | 108.3 | -0.71 | -1.67 | 0.769 | 45.2% | — | — | — | 25.0% | -1.50 | — | — | — | +0.14 |
| 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1515 | 105.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1484 | 98.9 | -3.27 | -2.64 | 0.452 | 39.6% | — | — | — | 0.0% | -3.50 | — | — | — | -0.01 |
| 32 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1469 | 97.0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 2044 | 147.7 | +0.75 | -0.59 | 0.974 | 49.7% | -27 | -126 | +85 | 51.5% | -0.01 | 74–45 (62%) | 91–82 (53%) | 113.8 | -0.39 | — | 1591 | 105.2 | -2.49 | -0.59 | 0.806 | 45.8% | — | — | — | 21.7% | -1.83 | 1–2 (33%) | 0–2 | — | +4.30 |
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 |
|---|---|---|---|---|---|
| Taylor Fritz | 4 | 4 | 8 | Jul 6, 2026 | H2H |
| Jan-Lennard Struff | 4 | 4 | 8 | Jun 10, 2026 | H2H |
| Jannik Sinner | 2 | 6 | 8 | Oct 25, 2025 | H2H |
| Andrey Rublev | 3 | 5 | 8 | Apr 28, 2025 | H2H |
| Felix Auger-Aliassime | 2 | 5 | 7 | Feb 14, 2026 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Bernard Tomic | 1 | 1 | 2 | May 23, 2019 | H2H |
| Jordan Thompson | 0 | 1 | 1 | Apr 7, 2022 | H2H |
| Mackenzie McDonald | 0 | 1 | 1 | Sep 29, 2020 | H2H |
| Jo-Wilfried Tsonga | 0 | 1 | 1 | May 24, 2019 | H2H |
| Nicolas Almagro | 0 | 1 | 1 | Apr 26, 2017 | H2H |