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

John Isner vs Igor Kunitsyn H2H: 2-0

John Isner holds a 2–0 lead over Igor Kunitsyn in their ATP head-to-head. Across 2 main-draw meetings, John Isner leads 2–0 on hard courts. Most recently, John Isner won the 2011 Paris Masters second round 6-4 6-4.

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John Isner
USA Age 41 Right-Handed 208 cm / 6'10"
H2H
2 – 0
2 main draw meetings
Igor Kunitsyn
RUS Age 44 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John Isner #25 6-4 6-4 Igor Kunitsyn #68 Match data Nov 10, 2011* R32 Paris Masters Masters 1000 Hard
John Isner #124 6-4 6-4 Igor Kunitsyn #72 Match data Aug 19, 2008* R64 New Haven International Series → modern equivalent 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
John Isner #660 #8 3,720 2,068 470 294 61.5% 0 1 0 0 15 16
Igor Kunitsyn #1,093 #35 1,562 1,755 87 149 36.9% 0 0 0 0 1 1

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 John Isner Igor Kunitsyn
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1999 0–2 0.0% #315 1,489 0 0
20 — — — — — — — 2002 0–1 0.0% #149 1,499 0 0
21 — — — — — — — 2003 0–3 0.0% #193 1,479 0 0
22 2007 8–5 61.5% #106 1,656 0 0 2004 2–2 50.0% #158 1,494 0 0
23 2008 11–19 36.7% #144 1,607 0 0 2005 3–2 60.0% #129 1,545 0 0
24 2009 27–18 60.0% #34 1,829 0 0 2006 10–15 40.0% #94 1,612 0 0
25 2010 38–20 65.5% #19 1,884 0 1 2007 16–24 40.0% #116 1,600 0 0
26 2011 34–19 64.2% #18 2,020 0 3 2008 15–14 51.7% #47 1,690 0 1
27 2012 41–19 68.3% #14 1,977 0 5 2009 16–30 34.8% #104 1,650 0 1
28 2013 38–22 63.3% #14 1,984 0 7 2010 5–14 26.3% #100 1,681 0 1
29 2014 37–21 63.8% #19 1,935 0 9 2011 16–21 43.2% #71 1,720 0 1
30 2015 45–23 66.2% #11 2,028 0 10 2012 4–19 17.4% #162 1,542 0 1
31 2016 30–20 60.0% #19 2,021 0 10 2013 0–2 0.0% #548 1,555 0 1
32 2017 36–21 63.2% #17 1,985 0 12 — — — — — — —
33 2018 32–22 59.3% #10 1,958 0 14 — — — — — — —
34 2019 29–17 63.0% #19 1,922 0 15 — — — — — — —
35 2020 10–7 58.8% #25 1,845 0 15 — — — — — — —
36 2021 23–11 67.6% #24 1,945 0 16 — — — — — — —
37 2022 22–16 57.9% #41 1,925 0 16 — — — — — — —
38 2023 9–14 39.1% #172 1,711 0 16 — — — — — — —

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 John Isner Igor Kunitsyn
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 — — — — — — — — — — — — — — — — — 1999 — — — — — — — — — — — — 0 2 2 0.0%
20 — — — — — — — — — — — — — — — — — 2002 0 1 1 0.0% — — — — — — — — — — — —
21 — — — — — — — — — — — — — — — — — 2003 — — — — 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0%
22 2007 8 4 12 66.7% — — — — 0 1 1 0.0% — — — — 2004 — — — — — — — — — — — — 2 2 4 50.0%
23 2008 9 12 21 42.9% 1 3 4 25.0% 1 4 5 20.0% — — — — 2005 — — — — — — — — — — — — 3 2 5 60.0%
24 2009 25 17 42 59.5% 2 1 3 66.7% — — — — — — — — 2006 2 8 10 20.0% 0 1 1 0.0% 2 4 6 33.3% 6 2 8 75.0%
25 2010 29 13 42 69.0% 8 6 14 57.1% 1 1 2 50.0% — — — — 2007 14 16 30 46.7% 1 3 4 25.0% 1 4 5 20.0% 0 1 1 0.0%
26 2011 26 13 39 66.7% 2 5 7 28.6% 6 1 7 85.7% — — — — 2008 10 9 19 52.6% 4 2 6 66.7% 1 3 4 25.0% — — — —
27 2012 27 12 39 69.2% 6 5 11 54.5% 8 2 10 80.0% — — — — 2009 13 21 34 38.2% 1 6 7 14.3% 2 3 5 40.0% — — — —
28 2013 26 14 40 65.0% 8 5 13 61.5% 4 3 7 57.1% — — — — 2010 4 10 14 28.6% 0 2 2 0.0% 1 2 3 33.3% — — — —
29 2014 27 14 41 65.9% 6 5 11 54.5% 4 2 6 66.7% — — — — 2011 10 15 25 40.0% 1 2 3 33.3% 5 4 9 55.6% — — — —
30 2015 31 14 45 68.9% 10 6 16 62.5% 4 3 7 57.1% — — — — 2012 3 11 14 21.4% 1 4 5 20.0% 0 4 4 0.0% — — — —
31 2016 22 13 35 62.9% 5 5 10 50.0% 3 2 5 60.0% — — — — 2013 0 2 2 0.0% — — — — — — — — — — — —
32 2017 23 14 37 62.2% 7 4 11 63.6% 6 3 9 66.7% — — — — — — — — — — — — — — — — — — — — —
33 2018 20 16 36 55.6% 7 5 12 58.3% 5 1 6 83.3% — — — — — — — — — — — — — — — — — — — — —
34 2019 24 16 40 60.0% — — — — 5 1 6 83.3% — — — — — — — — — — — — — — — — — — — — —
35 2020 9 6 15 60.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
36 2021 18 8 26 69.2% 5 2 7 71.4% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
37 2022 11 10 21 52.4% 7 4 11 63.6% 4 2 6 66.7% — — — — — — — — — — — — — — — — — — — — —
38 2023 6 10 16 37.5% 0 2 2 0.0% 3 2 5 60.0% — — — — — — — — — — — — — — — — — — — — —
Career — 341 206 547 62.3% 75 59 134 56.0% 54 29 83 65.1% — — — — — 56 93 149 37.6% 8 21 29 27.6% 12 25 37 32.4% 11 10 21 52.4%

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 756/764 of John Isner's and 234/236 of Igor Kunitsyn'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 John Isner Igor Kunitsyn
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 — —/— — — — — — — — — — 1999 2/2 1.5 1.0 54.7% 64.9% 43.6% 45.0% 16.7% 55.5% 23.1%
20 — —/— — — — — — — — — — 2002 1/1 6.0 9.0 46.3% 59.4% 51.3% 57.9% 41.7% 55.0% 37.6%
21 — —/— — — — — — — — — — 2003 3/3 2.7 2.3 53.2% 60.5% 44.2% 35.0% 33.3% 52.9% 31.2%
22 2007 13/13 19.6 3.1 67.2% 78.2% 59.4% 65.5% 19.8% 71.9% 26.6% 2004 4/4 3.3 2.5 54.3% 66.3% 50.2% 67.5% 39.8% 59.3% 41.0%
23 2008 29/30 15.0 3.4 66.9% 77.1% 52.3% 60.0% 26.1% 68.8% 27.4% 2005 5/5 1.2 0.8 56.1% 66.1% 56.3% 43.7% 44.7% 61.8% 40.8%
24 2009 45/45 14.5 2.5 67.1% 75.0% 57.4% 65.9% 29.5% 69.1% 30.0% 2006 25/25 2.1 1.8 58.4% 67.4% 51.1% 60.4% 41.2% 60.7% 36.0%
25 2010 58/58 17.8 2.3 69.1% 76.5% 55.9% 68.0% 39.3% 70.1% 29.9% 2007 40/40 2.2 2.6 57.0% 63.3% 47.7% 52.3% 48.6% 56.7% 36.0%
26 2011 53/53 15.2 2.8 69.2% 78.0% 55.6% 62.5% 40.1% 71.2% 31.5% 2008 27/29 2.1 1.8 60.2% 65.1% 50.5% 48.3% 42.5% 58.9% 41.5%
27 2012 56/60 16.7 2.2 67.9% 78.2% 57.0% 72.2% 33.2% 71.6% 31.1% 2009 46/46 3.0 1.5 65.0% 65.5% 51.3% 53.4% 39.8% 60.3% 36.1%
28 2013 60/60 16.3 1.7 67.7% 79.4% 57.8% 66.5% 33.7% 72.2% 31.1% 2010 19/19 2.1 1.2 65.1% 65.6% 45.3% 50.4% 36.3% 58.0% 32.0%
29 2014 57/58 17.4 1.8 67.8% 79.1% 57.8% 73.0% 27.3% 72.1% 30.2% 2011 37/37 3.9 1.8 57.6% 66.6% 50.1% 54.4% 45.0% 59.5% 36.8%
30 2015 68/68 18.5 1.8 70.3% 80.2% 58.6% 74.8% 37.5% 73.8% 29.6% 2012 23/23 3.3 1.7 59.5% 63.9% 46.6% 53.9% 45.5% 56.8% 34.5%
31 2016 50/50 23.2 2.7 69.2% 82.4% 55.3% 68.3% 35.9% 73.9% 30.7% 2013 2/2 3.5 3.5 53.9% 59.9% 47.9% 60.0% 50.0% 54.3% 30.1%
32 2017 57/57 19.7 2.2 70.6% 80.6% 56.5% 63.6% 41.2% 73.5% 29.1% — —/— — — — — — — — — —
33 2018 54/54 22.4 2.4 69.1% 81.3% 56.7% 70.1% 30.6% 73.7% 29.7% — —/— — — — — — — — — —
34 2019 46/46 21.8 1.7 71.0% 81.4% 58.6% 70.1% 34.2% 74.7% 29.8% — —/— — — — — — — — — —
35 2020 17/17 21.9 3.5 71.5% 78.6% 54.9% 84.1% 25.0% 72.2% 28.8% — —/— — — — — — — — — —
36 2021 33/34 20.6 2.1 68.5% 79.0% 55.9% 62.7% 34.5% 71.8% 28.4% — —/— — — — — — — — — —
37 2022 37/38 22.6 2.8 68.8% 80.3% 54.1% 64.9% 36.6% 72.1% 27.7% — —/— — — — — — — — — —
38 2023 23/23 20.9 2.9 67.7% 79.7% 57.4% 72.2% 18.8% 72.3% 28.0% — —/— — — — — — — — — —
Career — 756/764 18.8 2.3 68.9% 79.2% 56.7% 68.4% 33.7% 72.2% 29.8% — 234/236 2.7 1.9 59.9% 65.2% 49.3% 53.1% 42.8% 58.7% 36.3%

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 John Isner Igor Kunitsyn
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 — — — — — — — — — — — — — — — — 1999 1489 107.1 -0.95 -1.96 0.518 40.7% — — — 20.0% -2.40 0–1 — — -0.19
18 — — — — — — — — — — — — — — — — 2000 1474 96.9 — — — — — — — — — — — — —
20 — — — — — — — — — — — — — — — — 2002 1500 106.1 -2.95 +0.18 0.836 46.8% — — — 25.0% -1.50 — 1–0 — +0.09
21 — — — — — — — — — — — — — — — — 2003 1479 105.3 -0.37 -1.06 0.662 41.6% — — — 0.0% -3.43 — 0–1 — -0.24
22 2007 1656 138.0 +5.43 -3.75 0.947 49.4% +37 — — 54.1% -0.19 5–1 (83%) 12–7 (63%) — +0.01 2004 1495 112.5 +0.24 +1.44 1.006 50.3% +22 — — 55.6% +0.22 0–1 2–1 (67%) — -0.15
23 2008 1608 128.0 +4.14 -6.69 0.881 48.3% +39 -96 -116 41.0% -0.51 4–8 (33%) 13–12 (52%) — +0.16 2005 1546 119.5 -1.10 +1.25 1.068 50.6% +20 — — 60.0% +0.20 — 1–0 — -0.21
24 2009 1830 145.6 +4.72 -4.63 0.972 50.0% +1 -280 — 57.0% +0.23 12–6 (67%) 26–12 (68%) — +0.93 2006 1612 124.2 -1.62 -0.99 0.915 48.5% +24 — -77 41.1% -0.34 3–2 (60%) 4–3 (57%) — +0.85
25 2010 1885 154.2 +5.86 -4.84 1.002 50.5% +41 -194 — 58.8% +0.34 19–9 (68%) 32–16 (67%) — +2.28 2007 1600 118.4 -5.09 -0.41 0.832 46.4% +32 -122 -150 37.8% -1.09 8–5 (62%) 10–7 (59%) — +0.33
26 2011 2020 160.4 +7.13 -3.98 1.097 51.5% +30 -361 -297 61.6% +0.53 11–11 (50%) 32–20 (62%) — +1.83 2008 1690 129.9 -3.43 +3.27 1.009 50.2% +21 -122 -239 48.6% +0.09 6–3 (67%) 4–7 (36%) — +1.39
27 2012 1978 157.8 +7.12 -4.36 1.092 51.3% +43 -260 -71 62.7% +0.43 15–10 (60%) 38–18 (68%) — +3.35 2009 1650 139.3 -2.20 -0.23 0.910 48.3% +16 -119 -141 38.6% -0.82 6–11 (35%) 8–11 (42%) — +0.50
28 2013 1985 159.0 +7.64 -3.71 1.119 51.3% +52 -198 -94 59.5% +0.36 18–11 (62%) 36–17 (68%) — +3.48 2010 1681 127.8 -3.07 -2.57 0.763 45.5% +19 — -152 29.8% -1.47 1–3 (25%) 1–3 (25%) — -1.63
29 2014 1935 157.9 +7.20 -4.42 1.079 50.8% +50 -99 -27 61.8% +0.44 12–6 (67%) 41–21 (66%) — +3.24 2011 1721 133.8 -3.11 +0.52 0.910 48.3% +1 -217 -97 41.5% -0.68 6–6 (50%) 8–4 (67%) — -0.07
30 2015 2029 168.0 +8.71 -4.22 1.132 51.6% +54 -121 -120 62.7% +0.57 12–9 (57%) 39–25 (61%) — +3.80 2012 1542 112.8 -4.40 -2.44 0.798 45.8% +58 -85 -8 25.0% -1.79 1–6 (14%) 4–8 (33%) — +0.32
31 2016 2021 163.0 +8.76 -3.60 1.179 51.8% +44 -140 -79 58.6% +0.48 9–10 (47%) 31–30 (51%) — +1.41 2013 1556 112.0 -0.69 -3.06 0.660 43.2% — — — 20.0% -2.40 0–1 — — +0.03
32 2017 1986 158.3 +8.00 -5.60 1.094 51.2% +14 -91 -60 60.0% +0.42 11–9 (55%) 40–24 (63%) — +3.24 — — — — — — — — — — — — — — — —
33 2018 1959 158.8 +8.37 -4.32 1.129 51.3% -23 -61 +77 57.0% +0.42 14–11 (56%) 37–32 (54%) — +2.48 — — — — — — — — — — — — — — — —
34 2019 1922 154.7 +8.16 -3.97 1.178 51.7% -6 — +115 61.2% +0.47 8–7 (53%) 29–23 (56%) — +3.19 — — — — — — — — — — — — — — — —
35 2020 1846 134.4 +4.91 -4.34 1.035 50.7% +22 — — 60.9% +0.50 3–3 (50%) 14–7 (67%) — +1.74 — — — — — — — — — — — — — — — —
36 2021 1945 152.3 +6.93 -5.43 1.006 50.2% 0 +9 — 62.5% +0.27 10–5 (67%) 21–9 (70%) — +0.90 — — — — — — — — — — — — — — — —
37 2022 1926 145.5 +6.21 -5.79 0.996 49.8% -21 +13 +80 55.1% -0.02 11–8 (58%) 30–17 (64%) — +1.11 — — — — — — — — — — — — — — — —
38 2023 1711 125.8 +5.40 -5.66 1.012 49.9% +36 — +244 45.3% -0.14 3–6 (33%) 11–17 (39%) — +1.74 — — — — — — — — — — — — — — — —
Career — 2068 162.0 +7.10 -4.58 1.071 50.9% +25 -137 -39 58.7% +0.34 177–130 (58%) 482–307 (61%) 111.1 +4.58 — 1756 130.6 -3.10 -0.21 0.879 47.6% +22 -125 -118 38.1% -0.86 31–39 (44%) 43–45 (49%) 99.8 +0.43

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.