H2H data updated: 2026-09-01 00:00 UTC

Martin Klizan vs Denis Istomin H2H: 2-1

Martin Klizan holds a 2–1 lead over Denis Istomin in their ATP head-to-head. Across 3 main-draw meetings, Martin Klizan leads 2–0 on clay, while Denis Istomin leads 1–0 on hard courts. Most recently, Martin Klizan won the 2018 Austrian Open Kitzbühel final 6-2 6-2.

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Martin Klizan
Slovakia Age 37 Left-Handed 191 cm / 6'3"
H2H
2 – 1
3 main draw meetings
Denis Istomin
UZB Age 39 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Martin Klizan #112 6-2 6-2 Denis Istomin #95 Match data Aug 4, 2018* F Austrian Open Kitzbühel ATP 250 Clay
Martin Klizan #111 7-6(3) 1-6 6-1 Denis Istomin #55 Match data May 3, 2014* QF Munich Open ATP 250 Clay
Denis Istomin #43 6-1 6-2 Martin Klizan #30 Match data Jan 2, 2013* R32 Brisbane International ATP 250 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
Martin Klizan #831 #24 1,445 1,979 128 147 46.5% 0 0 0 2 4 6
Denis Istomin #1,509 #33 1,217 1,914 196 249 44.0% 0 0 0 0 2 2

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 Martin Klizan Denis Istomin
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2007 1–1 50.0% #395 1,524 0 0 — — — — — — —
19 2009 0–1 0.0% #234 1,542 0 0 2006 0–2 0.0% #200 1,474 0 0
20 2010 1–2 33.3% #155 1,607 0 0 — — — — — — —
21 2011 0–2 0.0% #117 1,600 0 0 2008 2–2 50.0% #105 1,559 0 0
22 2012 16–14 53.3% #30 1,792 0 1 2009 13–17 43.3% #102 1,635 0 0
23 2013 12–24 33.3% #108 1,690 0 1 2010 29–29 50.0% #40 1,767 0 0
24 2014 23–16 59.0% #34 1,930 0 2 2011 10–21 32.3% #73 1,665 0 0
25 2015 24–27 47.1% #43 1,797 0 3 2012 28–30 48.3% #43 1,751 0 0
26 2016 14–15 48.3% #35 1,752 0 5 2013 30–29 50.8% #45 1,811 0 0
27 2017 10–15 40.0% #141 1,757 0 5 2014 27–24 52.9% #49 1,860 0 0
28 2018 18–9 66.7% #41 1,917 0 6 2015 20–23 46.5% #61 1,789 0 1
29 2019 9–18 33.3% #141 1,701 0 6 2016 6–20 23.1% #121 1,707 0 1
30 2020 0–2 0.0% #151 1,648 0 6 2017 15–18 45.5% #63 1,723 0 2
31 — — — — — — — 2018 12–18 40.0% #92 1,678 0 2
32 — — — — — — — 2019 3–11 21.4% #177 1,575 0 2
33 — — — — — — — 2020 0–1 0.0% #184 1,552 0 2
34 — — — — — — — 2021 0–3 0.0% #254 1,537 0 2
35 2025 0–1 0.0% #835 1,555 0 6 2022 1–1 50.0% #467 1,570 0 2

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 Martin Klizan Denis Istomin
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % 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 2007 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2009 — — — — 0 1 1 0.0% — — — — — — — — 2006 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
20 2010 0 1 1 0.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
21 2011 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 2008 2 2 4 50.0% — — — — — — — — — — — —
22 2012 10 6 16 62.5% 5 5 10 50.0% 1 3 4 25.0% — — — — 2009 9 12 21 42.9% 1 2 3 33.3% 3 3 6 50.0% — — — —
23 2013 4 13 17 23.5% 7 9 16 43.8% 1 2 3 33.3% — — — — 2010 17 19 36 47.2% 5 7 12 41.7% 7 3 10 70.0% — — — —
24 2014 8 8 16 50.0% 13 6 19 68.4% 2 2 4 50.0% — — — — 2011 7 10 17 41.2% 2 8 10 20.0% 1 3 4 25.0% — — — —
25 2015 12 14 26 46.2% 12 11 23 52.2% 0 2 2 0.0% — — — — 2012 17 17 34 50.0% 3 8 11 27.3% 8 5 13 61.5% — — — —
26 2016 8 12 20 40.0% 6 2 8 75.0% 0 1 1 0.0% — — — — 2013 25 19 44 56.8% 4 7 11 36.4% 1 3 4 25.0% — — — —
27 2017 5 8 13 38.5% 5 5 10 50.0% 0 2 2 0.0% — — — — 2014 13 17 30 43.3% 8 4 12 66.7% 6 3 9 66.7% — — — —
28 2018 6 5 11 54.5% 12 4 16 75.0% — — — — — — — — 2015 9 15 24 37.5% 5 6 11 45.5% 6 2 8 75.0% — — — —
29 2019 4 9 13 30.8% 5 8 13 38.5% 0 1 1 0.0% — — — — 2016 1 10 11 9.1% 3 7 10 30.0% 2 3 5 40.0% — — — —
30 2020 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 2017 11 8 19 57.9% 4 7 11 36.4% 0 3 3 0.0% — — — —
31 — — — — — — — — — — — — — — — — — 2018 5 8 13 38.5% 4 7 11 36.4% 3 3 6 50.0% — — — —
32 — — — — — — — — — — — — — — — — — 2019 2 6 8 25.0% 1 3 4 25.0% 0 2 2 0.0% — — — —
33 — — — — — — — — — — — — — — — — — 2020 0 1 1 0.0% — — — — — — — — — — — —
34 — — — — — — — — — — — — — — — — — 2021 0 2 2 0.0% 0 1 1 0.0% — — — — — — — —
35 2025 — — — — 0 1 1 0.0% — — — — — — — — 2022 1 1 2 50.0% — — — — — — — — — — — —
Career — 58 79 137 42.3% 66 55 121 54.5% 4 13 17 23.5% — — — — — 119 148 267 44.6% 40 67 107 37.4% 37 33 70 52.9% 0 1 1 0.0%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 271/275 of Martin Klizan's and 437/445 of Denis Istomin'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 Martin Klizan Denis Istomin
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 2007 2/2 4.5 5.0 50.7% 64.2% 50.8% 61.7% 45.0% 58.5% 41.6% — —/— — — — — — — — — —
19 2009 1/1 2.0 3.0 44.4% 64.3% 37.1% 44.4% 30.0% 49.2% 43.2% 2006 2/2 7.5 2.0 61.5% 66.3% 47.4% 60.2% 22.2% 59.1% 27.3%
20 2010 3/3 4.7 7.3 48.1% 67.9% 41.9% 64.6% 41.1% 54.6% 35.4% — —/— — — — — — — — — —
21 2011 2/2 1.5 5.5 60.6% 52.6% 35.0% 22.7% 29.2% 45.7% 35.2% 2008 4/4 4.5 2.0 62.2% 68.4% 49.7% 65.1% 38.0% 61.3% 35.4%
22 2012 29/30 3.9 3.5 56.1% 71.1% 50.5% 56.3% 48.2% 62.1% 41.4% 2009 29/30 6.6 2.7 66.1% 69.8% 48.8% 54.8% 41.5% 62.4% 34.1%
23 2013 36/36 6.0 3.9 54.7% 67.3% 48.8% 60.3% 40.6% 58.8% 36.4% 2010 58/58 6.7 1.5 65.3% 70.2% 53.9% 54.2% 41.5% 64.5% 36.2%
24 2014 36/39 5.7 3.2 56.9% 73.3% 52.4% 61.3% 44.3% 63.9% 37.9% 2011 31/31 5.5 2.2 64.3% 64.3% 49.6% 56.0% 36.7% 59.3% 34.6%
25 2015 51/51 4.8 3.6 57.5% 68.9% 48.4% 56.2% 42.0% 60.3% 34.4% 2012 54/58 7.1 1.7 63.9% 70.8% 52.2% 58.0% 39.1% 64.1% 35.8%
26 2016 29/29 4.6 4.4 58.0% 69.6% 49.4% 58.1% 49.6% 60.7% 38.5% 2013 59/59 6.3 2.0 63.2% 72.0% 51.6% 64.5% 39.1% 64.4% 35.1%
27 2017 25/25 3.3 3.3 64.7% 67.0% 50.6% 58.0% 40.2% 61.2% 36.6% 2014 50/51 7.0 1.6 67.9% 72.2% 50.5% 58.6% 39.9% 65.0% 34.8%
28 2018 27/27 4.5 2.4 62.1% 70.2% 55.5% 59.1% 54.5% 64.5% 37.8% 2015 43/43 5.7 1.3 63.5% 72.5% 51.8% 58.3% 38.9% 64.8% 36.5%
29 2019 27/27 4.3 4.5 58.1% 67.0% 47.9% 55.1% 48.2% 58.9% 35.1% 2016 25/26 6.8 2.1 63.5% 69.9% 49.2% 52.9% 44.8% 62.3% 33.7%
30 2020 2/2 5.0 1.5 55.6% 68.0% 47.9% 51.4% 32.5% 59.0% 34.8% 2017 33/33 8.4 1.7 65.4% 72.3% 50.1% 59.7% 44.3% 64.7% 34.2%
31 — —/— — — — — — — — — — 2018 30/30 5.7 1.5 68.7% 71.0% 51.0% 56.5% 34.9% 64.5% 34.3%
32 — —/— — — — — — — — — — 2019 14/14 5.5 2.0 65.7% 72.4% 49.2% 56.9% 39.4% 64.5% 30.6%
33 — —/— — — — — — — — — — 2020 1/1 2.0 2.0 64.0% 65.6% 27.8% 60.0% 0.0% 52.0% 28.3%
34 — —/— — — — — — — — — — 2021 2/3 2.0 2.5 72.1% 64.6% 44.2% 50.8% — 59.2% 19.8%
35 2025 1/1 0.0 4.0 64.0% 72.0% 42.0% 56.0% 60.0% 62.0% 29.0% 2022 2/2 3.5 1.5 68.0% 69.9% 41.1% 72.2% 21.4% 60.5% 33.4%
Career — 271/275 4.7 3.7 58.0% 69.2% 50.0% 57.8% 45.2% 60.9% 37.0% — 437/445 6.5 1.8 65.1% 70.7% 51.0% 57.9% 39.5% 63.8% 34.9%

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 Martin Klizan Denis Istomin
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 2007 1524 104.9 -2.40 -0.79 1.001 50.8% — — — 50.0% +0.50 — 0–1 — +0.04 — — — — — — — — — — — — — — — —
18 2008 1506 98.1 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2009 1543 104.5 -2.83 -2.96 0.851 46.0% — — — 0.0% -2.00 — — — +0.11 2006 1474 112.2 +1.83 +2.43 0.669 43.4% — — — 16.7% -2.34 0–1 1–1 — -0.22
20 2010 1607 113.5 +0.26 +1.44 0.780 45.9% — — — 33.3% -0.78 1–1 — — -0.14 2007 1486 103.4 — — — — — — — — — — — — —
21 2011 1601 108.6 -3.98 +3.39 0.648 40.3% — — — 0.0% -3.25 — — — -0.28 2008 1559 115.8 -0.37 +0.78 0.914 48.9% +45 — — 50.0% -0.08 — 2–2 (50%) — +0.02
22 2012 1793 136.2 -0.83 +2.99 1.092 51.5% -45 -158 -236 52.6% +0.10 4–5 (44%) 3–7 (30%) — +0.80 2009 1636 125.3 -1.33 -1.62 0.907 48.6% +16 -133 -53 42.9% -0.57 5–2 (71%) 7–10 (41%) — +1.12
23 2013 1690 141.7 -2.90 -0.83 0.884 48.1% -55 +13 -130 39.3% -0.74 4–11 (27%) 6–8 (43%) — +0.17 2010 1768 143.4 +1.15 +0.13 1.018 50.4% -22 -228 -27 51.7% +0.19 13–12 (52%) 15–11 (58%) — -0.33
24 2014 1930 145.3 +0.98 +1.95 1.050 51.1% -137 +27 -329 56.4% +0.30 10–4 (71%) 11–8 (58%) — -2.11 2011 1666 130.3 -2.79 -1.92 0.850 47.1% +33 -165 +77 37.3% -0.88 1–5 (17%) 7–3 (70%) — -1.16
25 2015 1798 145.6 -2.85 -1.50 0.865 47.5% -11 +44 — 45.3% -0.62 11–6 (65%) 17–5 (77%) — -0.15 2012 1751 150.1 +1.09 -0.48 0.999 50.0% -33 -229 +124 48.6% +0.04 10–10 (50%) 14–14 (50%) — -1.49
26 2016 1753 151.0 -1.88 +1.38 0.979 50.0% +2 +114 — 52.2% +0.12 6–7 (46%) 4–6 (40%) — +1.22 2013 1812 153.1 +0.94 -0.48 0.987 49.9% +15 -243 -31 50.0% +0.05 10–10 (50%) 11–13 (46%) — -0.77
27 2017 1757 144.6 -1.26 +0.29 0.943 49.2% -12 +78 — 47.5% +0.03 4–5 (44%) 6–9 (40%) — -0.38 2014 1860 158.1 +1.45 -0.54 0.996 50.0% +1 -139 -14 52.7% +0.11 8–9 (47%) 13–14 (48%) — -3.30
28 2018 1918 149.4 +0.58 +1.54 1.064 51.4% -96 +77 — 58.2% +0.43 8–2 (80%) 5–3 (63%) — -2.08 2015 1790 143.8 +0.64 +0.10 1.036 50.5% -25 -86 +93 48.4% +0.09 3–7 (30%) 8–8 (50%) — -1.14
29 2019 1702 134.3 -4.15 -1.03 0.853 47.6% +16 +145 — 37.1% -0.73 4–5 (44%) 7–7 (50%) — -0.18 2016 1707 140.8 -0.07 -2.12 0.894 48.4% -28 -26 +126 33.8% -0.85 2–5 (29%) 5–6 (45%) — -2.01
30 2020 1649 111.4 -0.19 -1.33 0.847 45.8% — — — 20.0% -2.00 0–1 0–1 — -0.18 2017 1723 138.9 +1.33 -1.58 0.968 49.5% +6 -29 -40 45.2% -0.31 6–4 (60%) 9–7 (56%) — -0.43
31 2021 1541 88.8 — — — — — — — — — — — — — 2018 1679 132.6 +0.11 -1.51 0.968 49.0% -23 +18 +38 45.8% -0.11 4–6 (40%) 10–14 (42%) — -0.46
32 — — — — — — — — — — — — — — — — 2019 1576 124.0 -0.42 -1.96 0.862 47.8% +79 +78 — 25.8% -1.00 1–2 (33%) 3–5 (38%) — -0.40
33 — — — — — — — — — — — — — — — — 2020 1552 113.0 -1.58 +7.36 0.589 40.6% — — — 0.0% -4.00 — — — -0.19
34 — — — — — — — — — — — — — — — — 2021 1538 107.3 -0.95 -2.93 0.484 41.2% — — — 12.5% -2.25 0–1 1–0 — -0.06
35 2025 1556 101.9 -0.23 -0.93 0.763 47.0% — — — 33.3% -0.67 0–1 — — +0.01 2022 1571 110.4 -1.64 -0.13 0.846 46.2% — — — 50.0% -1.00 — 1–0 — -0.06
Career — 1980 146.1 -1.61 +0.42 0.947 49.3% -39 +43 -241 47.5% -0.22 52–48 (52%) 59–55 (52%) 103.7 -1.16 — 1914 147.1 +0.44 -0.79 0.963 49.4% -2 -119 +38 46.1% -0.19 63–74 (46%) 107–108 (50%) 101.5 -2.45

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.