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 Steven Diez vs Jason Jung.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Jason Jung | 6-2 6-2 | Steven Diez | Match data | Feb 24, 2020 | Q1 | Mexican Open | ATP 500 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steven Diez | #940 | #134 | 418 | 1,591 | 2 | 8 | 20.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Jason Jung | #1,071 | #114 | 500 | 1,668 | 10 | 22 | 31.2% | 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 | Steven Diez | Jason Jung | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 23 | 2014 | 0–1 | 0.0% | #384 | 1,397 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 2016 | 1–3 | 25.0% | #166 | 1,504 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2017 | 0–1 | 0.0% | #306 | 1,466 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2019 | 1–1 | 50.0% | #136 | 1,554 | 0 | 0 | 2017 | 0–2 | 0.0% | #239 | 1,465 | 0 | 0 |
| 29 | 2020 | 0–1 | 0.0% | #179 | 1,566 | 0 | 0 | 2018 | 2–3 | 40.0% | #121 | 1,531 | 0 | 0 |
| 30 | — | — | — | — | — | — | — | 2019 | 2–6 | 25.0% | #127 | 1,559 | 0 | 0 |
| 31 | 2022 | 0–1 | 0.0% | #272 | 1,484 | 0 | 0 | 2020 | 3–6 | 33.3% | #132 | 1,600 | 0 | 0 |
| 32 | — | — | — | — | — | — | — | 2021 | 2–3 | 40.0% | #178 | 1,537 | 0 | 0 |
| 34 | — | — | — | — | — | — | — | 2023 | 1–2 | 33.3% | #244 | 1,528 | 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 | Steven Diez | Jason Jung | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 23 | 2014 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2016 | 1 | 1 | 2 | 50.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2017 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2019 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | 2017 | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 29 | 2020 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2018 | 0 | 1 | 1 | 0.0% | — | — | — | — | 2 | 2 | 4 | 50.0% |
| 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 2 | 5 | 7 | 28.6% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 31 | 2022 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2020 | 3 | 5 | 8 | 37.5% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 32 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 0 | 2 | 2 | 0.0% | — | — | — | — | 2 | 1 | 3 | 66.7% |
| 34 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| Career | — | 1 | 2 | 3 | 33.3% | 1 | 6 | 7 | 14.3% | — | — | — | — | — | 6 | 16 | 22 | 27.3% | 0 | 1 | 1 | 0.0% | 4 | 5 | 9 | 44.4% |
Seasons are aligned by the age each player spent most of that calendar year. 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 | Steven Diez | Jason Jung | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 23 | 2014 | 1/1 | 1.0 | 7.0 | 48.1% | 57.7% | 32.1% | 54.5% | 0.0% | 44.4% | 29.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 25 | 2016 | 4/4 | 2.8 | 3.8 | 62.1% | 62.3% | 44.9% | 47.0% | 43.3% | 55.6% | 36.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2017 | 1/1 | 1.0 | 4.0 | 56.7% | 58.8% | 46.2% | 50.0% | 66.7% | 53.3% | 35.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2019 | 2/2 | 1.5 | 1.0 | 66.7% | 62.4% | 70.6% | 67.5% | 26.7% | 65.1% | 44.1% | 2017 | 2/2 | 4.0 | 3.0 | 61.8% | 57.4% | 49.1% | 44.4% | 75.0% | 54.8% | 31.3% |
| 29 | 2020 | 1/1 | 2.0 | 5.0 | 68.3% | 66.3% | 27.5% | 30.0% | 50.0% | 54.0% | 35.4% | 2018 | 5/5 | 4.2 | 4.0 | 68.0% | 62.8% | 51.2% | 65.1% | 42.6% | 59.2% | 33.4% |
| 30 | — | —/— | — | — | — | — | — | — | — | — | — | 2019 | 8/8 | 3.3 | 2.3 | 64.9% | 66.4% | 55.2% | 51.9% | 32.2% | 62.0% | 32.2% |
| 31 | 2022 | 1/1 | 0.0 | 1.0 | 67.7% | 54.8% | 55.0% | 66.7% | 0.0% | 54.8% | 20.4% | 2020 | 9/9 | 3.2 | 1.9 | 65.0% | 67.4% | 47.0% | 44.1% | 40.1% | 60.3% | 35.3% |
| 32 | — | —/— | — | — | — | — | — | — | — | — | — | 2021 | 5/5 | 3.2 | 3.2 | 65.2% | 70.5% | 44.0% | 65.8% | 30.5% | 61.6% | 36.2% |
| 34 | — | —/— | — | — | — | — | — | — | — | — | — | 2023 | 3/3 | 1.3 | 2.3 | 59.3% | 57.1% | 46.4% | 45.2% | 18.2% | 52.7% | 31.5% |
| Career | — | 10/10 | 1.8 | 3.4 | 62.2% | 61.1% | 48.2% | 52.4% | 34.3% | 55.9% | 35.6% | — | 32/32 | 3.3 | 2.6 | 64.8% | 65.3% | 49.3% | 52.8% | 37.1% | 59.7% | 33.7% |
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 | Steven Diez | Jason Jung | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2008 | 1487 | 98.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2010 | 1477 | 103.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2011 | 1464 | 93.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2012 | 1450 | 95.9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2013 | 1423 | 90.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2014 | 1397 | 92.2 | -3.17 | -0.46 | 0.532 | 37.8% | — | — | — | 0.0% | -4.50 | — | — | — | +0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2013 | 1475 | 94.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2016 | 1505 | 118.7 | -2.88 | -0.89 | 0.827 | 46.2% | — | — | — | 30.0% | -1.40 | 1–1 | 0–1 | — | +0.40 | 2014 | 1504 | 109.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2017 | 1466 | 101.2 | -1.42 | -1.50 | 0.754 | 44.7% | — | — | — | 0.0% | -2.50 | — | — | — | -0.05 | 2015 | 1494 | 97.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2018 | 1452 | 97.8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2019 | 1554 | 116.7 | -2.41 | +1.98 | 1.263 | 53.0% | — | — | — | 33.3% | -0.33 | 0–1 | 0–1 | — | -0.09 | 2017 | 1466 | 99.2 | -1.95 | -2.05 | 0.694 | 43.9% | — | — | — | 0.0% | -3.00 | — | — | — | -0.09 |
| 29 | 2020 | 1566 | 108.3 | -0.71 | -1.67 | 0.769 | 45.2% | — | — | — | 25.0% | -1.50 | — | — | — | +0.14 | 2018 | 1532 | 109.6 | -1.26 | -2.42 | 0.819 | 47.0% | — | — | +87 | 38.5% | -0.85 | 1–1 | 0–1 | — | +0.05 |
| 30 | 2021 | 1515 | 105.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1559 | 117.1 | -2.28 | -1.30 | 0.845 | 47.3% | +24 | — | — | 35.0% | -0.60 | 1–3 (25%) | 0–3 (0%) | — | +0.22 |
| 31 | 2022 | 1484 | 98.9 | -3.27 | -2.64 | 0.452 | 39.6% | — | — | — | 0.0% | -3.50 | — | — | — | -0.01 | 2020 | 1600 | 135.9 | -1.90 | -0.10 | 0.889 | 47.4% | +31 | — | — | 37.5% | -1.00 | 1–0 | 1–3 (25%) | — | +0.21 |
| 32 | 2023 | 1469 | 97.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1538 | 108.2 | -2.40 | -0.54 | 0.941 | 48.6% | — | — | +68 | 36.4% | -0.73 | 1–0 | 1–2 (33%) | — | +0.76 |
| 33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1529 | 100.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1528 | 110.8 | -3.54 | -0.93 | 0.665 | 41.8% | -1 | — | — | 28.6% | -2.28 | 1–0 | 1–0 | — | +0.07 |
| Career | — | 1591 | 105.2 | -2.49 | -0.59 | 0.806 | 45.8% | — | — | — | 21.7% | -1.83 | 1–2 (33%) | 0–2 | — | +4.30 | — | 1669 | 117.0 | -2.13 | -1.03 | 0.837 | 46.8% | +23 | — | +79 | 33.8% | -1.06 | 5–4 (56%) | 3–9 (25%) | 99.3 | +3.81 |
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 |
|---|---|---|---|---|---|
| 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 |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ernesto Escobedo | 1 | 1 | 2 | Aug 2, 2023 | H2H |
| Federico Coria | 0 | 2 | 2 | Sep 29, 2020 | H2H |
| Borna Coric | 0 | 1 | 1 | Aug 3, 2023 | H2H |
| J.J. Wolf | 0 | 1 | 1 | Jul 27, 2023 | H2H |
| Evgeny Donskoy | 0 | 1 | 1 | Jul 21, 2021 | H2H |