H2H data updated: 2026-09-03 00:00 UTC

Hyeon Chung vs Bradley Klahn H2H: 1-0

Hyeon Chung holds a 1–0 lead over Bradley Klahn in their ATP head-to-head. Across 1 main-draw meeting, Hyeon Chung leads 1–0 on hard courts. Most recently, Hyeon Chung won the 2019 Australian Open first round 6-7(5) 6-7(5) 6-3 6-2 6-4.

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Hyeon Chung
South Korea Age 30 Right-Handed 188 cm / 6'2"
H2H
1 – 0
1 main draw meetings
Bradley Klahn
USA Age 36 Left-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Hyeon Chung #25 6-7(5) 6-7(5) 6-3 6-2 6-4 Bradley Klahn #78 Match data Jan 16, 2019* R128 Australian Open Grand Slam Hard

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.

Career Comparison

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
Hyeon Chung #493 #19 1,897 2,023 71 67 51.4% 0 0 0 0 0 0
Bradley Klahn #1,096 #63 731 1,734 13 43 23.2% 0 0 0 0 0 0

Career Progression by Age

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 Hyeon Chung Bradley Klahn
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2013 0–1 0.0% — 1,494 0 0 — — — — — — —
19 2015 9–9 50.0% #51 1,703 0 0 2010 0–1 0.0% — 1,499 0 0
20 2016 6–13 31.6% #104 1,657 0 0 2011 0–1 0.0% — 1,525 0 0
21 2017 21–18 53.8% #58 1,870 0 0 2012 1–2 33.3% #248 1,638 0 0
22 2018 29–18 61.7% #25 1,872 0 0 2013 1–3 25.0% #97 1,602 0 0
23 2019 6–8 42.9% #128 1,851 0 0 2014 2–11 15.4% #148 1,549 0 0
27 — — — — — — — 2018 5–8 38.5% #76 1,708 0 0
28 — — — — — — — 2019 4–14 22.2% #135 1,645 0 0
29 — — — — — — — 2020 0–1 0.0% #149 1,570 0 0
31 — — — — — — — 2022 0–1 0.0% #873 1,485 0 0
32 — — — — — — — 2023 0–1 0.0% #877 1,479 0 0

Surface Results by Age

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 Hyeon Chung Bradley Klahn
Yr HardClayGrass Yr HardClayGrass
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
17 2013 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
19 2015 7 6 13 53.8% 1 1 2 50.0% 1 2 3 33.3% 2010 0 1 1 0.0% — — — — — — — —
20 2016 3 8 11 27.3% 3 5 8 37.5% — — — — 2011 0 1 1 0.0% — — — — — — — —
21 2017 11 13 24 45.8% 10 5 15 66.7% — — — — 2012 1 2 3 33.3% — — — — — — — —
22 2018 27 16 43 62.8% 2 2 4 50.0% — — — — 2013 1 2 3 33.3% 0 1 1 0.0% — — — —
23 2019 6 8 14 42.9% — — — — — — — — 2014 2 7 9 22.2% 0 1 1 0.0% 0 3 3 0.0%
27 — — — — — — — — — — — — — 2018 4 7 11 36.4% — — — — 1 1 2 50.0%
28 — — — — — — — — — — — — — 2019 3 9 12 25.0% 0 2 2 0.0% 1 3 4 25.0%
29 — — — — — — — — — — — — — 2020 0 1 1 0.0% — — — — — — — —
31 — — — — — — — — — — — — — 2022 0 1 1 0.0% — — — — — — — —
32 — — — — — — — — — — — — — 2023 0 1 1 0.0% — — — — — — — —
Career — 54 52 106 50.9% 16 13 29 55.2% 1 2 3 33.3% — 11 32 43 25.6% 0 4 4 0.0% 2 7 9 22.2%

Performance Progression by Age

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 Hyeon Chung Bradley Klahn
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%
17 2013 1/1 0.0 1.0 64.8% 57.1% 57.9% 40.0% 0.0% 57.4% 29.8% — —/— — — — — — — — — —
19 2015 18/18 4.3 3.6 60.9% 71.8% 55.3% 47.7% 44.8% 65.4% 40.9% 2010 1/1 6.0 7.0 69.5% 69.2% 40.0% 56.3% 27.3% 60.3% 31.3%
20 2016 19/19 2.2 1.6 66.2% 65.0% 48.7% 45.6% 42.7% 59.2% 34.7% 2011 1/1 1.0 4.0 58.0% 62.1% 42.9% 40.0% 0.0% 54.0% 22.4%
21 2017 39/39 3.6 3.3 59.8% 71.2% 48.1% 62.3% 45.6% 62.2% 39.4% 2012 3/3 7.3 4.3 64.4% 62.3% 41.6% 60.4% 44.4% 55.0% 37.4%
22 2018 47/47 3.6 2.8 61.9% 70.5% 52.5% 58.3% 44.5% 63.5% 40.4% 2013 4/4 8.0 2.3 66.9% 73.3% 51.5% 25.0% 33.5% 65.9% 33.7%
23 2019 14/14 5.3 2.4 64.0% 69.0% 50.9% 48.3% 48.3% 62.4% 32.6% 2014 13/13 6.7 5.5 58.6% 66.8% 46.4% 53.4% 33.7% 58.4% 32.0%
27 — —/— — — — — — — — — — 2018 13/13 9.2 4.5 59.8% 75.5% 53.9% 50.6% 38.6% 66.9% 28.2%
28 — —/— — — — — — — — — — 2019 18/18 8.8 4.6 59.5% 72.2% 52.6% 60.3% 34.4% 64.4% 29.4%
29 — —/— — — — — — — — — — 2020 1/1 10.0 5.0 62.9% 63.0% 44.2% 64.7% 50.0% 56.0% 26.1%
31 — —/— — — — — — — — — — 2022 1/1 6.0 3.0 52.2% 58.3% 54.5% 50.0% — 56.5% 20.0%
32 — —/— — — — — — — — — — 2023 1/1 4.0 5.0 68.9% 66.7% 31.6% 66.7% 0.0% 55.7% 23.5%
Career — 138/138 3.6 2.8 62.0% 69.8% 51.0% 55.1% 44.7% 62.6% 38.5% — 56/56 7.9 4.6 60.4% 70.5% 49.9% 53.5% 34.0% 62.5% 30.1%

Advanced Statistics Comparison by Age

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 Hyeon Chung Bradley Klahn
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 2013 1495 95.2 -0.99 +0.22 0.700 43.2% — — — 0.0% -3.00 — — — -0.06 — — — — — — — — — — — — — — — —
18 2014 1503 97.3 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2015 1704 142.7 +0.87 +3.17 1.182 52.6% -1 — -141 50.0% +0.77 2–2 (50%) 1–8 (11%) — -0.15 2010 1499 108.4 -1.52 +3.65 0.787 46.9% — — — 25.0% -1.25 — — — -0.11
20 2016 1658 136.8 -2.72 -1.03 0.852 47.2% +32 -80 — 31.1% -1.09 3–2 (60%) 1–5 (17%) — -0.93 2011 1525 112.8 +0.69 +0.59 0.488 38.4% — — — 0.0% -3.50 — — — -0.19
21 2017 1871 154.5 -0.71 +3.56 1.042 50.7% -103 -35 — 53.1% +0.31 5–6 (45%) 4–3 (57%) — -2.55 2012 1639 117.2 -2.52 -0.18 0.831 46.8% +35 — — 36.4% -1.18 1–1 — — +0.09
22 2018 1873 158.0 -0.34 +4.48 1.105 51.6% -12 -40 — 60.2% +0.64 9–7 (56%) 12–9 (57%) — +0.40 2013 1603 112.5 -1.91 -0.65 0.991 48.3% +55 — — 33.3% -0.67 — 2–3 (40%) — +0.13
23 2019 1851 139.7 -0.94 -1.25 0.867 47.3% -11 — — 40.9% -0.52 5–2 (71%) 1–5 (17%) — -0.42 2014 1550 122.4 -3.31 -2.26 0.770 45.5% +73 — -31 30.0% -1.58 2–4 (33%) 6–2 (75%) — -0.32
24 2020 1829 102.1 — — — — — — — — — — — — — 2015 1548 102.5 — — — — — — — — — — — — —
26 — — — — — — — — — — — — — — — — 2017 1549 103.9 — — — — — — — — — — — — —
27 2023 1811 101.3 — — — — — — — — — — — — — 2018 1709 132.3 +1.07 -2.48 0.852 48.3% -22 — — 38.2% -0.56 2–2 (50%) 5–5 (50%) — -0.18
28 — — — — — — — — — — — — — — — — 2019 1646 123.8 -0.08 -4.65 0.825 47.6% +21 — -93 28.3% -1.00 1–2 (33%) 4–6 (40%) — 0.00
29 — — — — — — — — — — — — — — — — 2020 1570 96.9 -1.18 -3.05 0.594 43.1% — — — 25.0% -2.50 — — — +0.34
31 — — — — — — — — — — — — — — — — 2022 1485 106.5 -0.77 -0.68 0.460 42.1% — — — 0.0% -3.00 — — — -0.01
32 — — — — — — — — — — — — — — — — 2023 1480 104.5 +0.15 -2.16 0.532 41.1% — — — 0.0% -3.00 — — — +0.02
Career — 2023 153.9 -0.68 +2.68 1.031 50.4% -27 -49 -141 50.1% +0.16 24–19 (56%) 19–30 (39%) 98.4 -2.69 — 1734 124.5 -0.86 -2.68 0.801 46.8% +25 — -66 30.6% -1.17 6–9 (40%) 17–16 (52%) 101.2 -0.41

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.