H2H data updated: 2026-09-02 00:00 UTC

John Isner vs Ryan Harrison H2H: 8-3

John Isner holds an 8–3 lead over Ryan Harrison in their ATP head-to-head. Across 11 main-draw meetings, they are tied 3–3 on hard courts, while John Isner leads 3–0 on clay. Most recently, John Isner won the 2018 Atlanta final 5-7 6-3 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

John Isner
USA Age 41 Right-Handed 208 cm / 6'10"
H2H
8 – 3
11 main draw meetings
Ryan Harrison
USA Age 34 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John Isner #9 5-7 6-3 6-4 Ryan Harrison #53 Match data Jul 29, 2018* F Atlanta ATP 250 Hard
John Isner #9 7-6(1) 7-6(7) Ryan Harrison #59 Match data May 9, 2018* R32 Madrid Open Masters 1000 Clay
Ryan Harrison #60 6-3 7-6(5) John Isner #19 Match data Feb 28, 2018* R32 Mexican Open ATP 500 Hard
John Isner #20 7-6(6) 7-6(7) Ryan Harrison #42 Match data Jul 30, 2017* F Atlanta ATP 250 Hard
Ryan Harrison #144 7-6(3) 6-7(4) 6-4 John Isner #16 Match data Jul 28, 2016* R32 Canadian Open Masters 1000 Hard
John Isner #19 7-6(0) 6-2 Ryan Harrison #110 Match data Jul 11, 2013* R32 Newport ATP 250 Grass
John Isner #21 5-7 6-7(7) 6-3 6-1 8-6 Ryan Harrison #92 Match data May 30, 2013* R64 Roland Garros Grand Slam Clay
John Isner #23 7-6(4) 6-4 Ryan Harrison #93 Match data Apr 11, 2013* R32 U.S. Men's Clay Court Championship ATP 250 Clay
Ryan Harrison #68 6-4 6-4 John Isner #13 Match data Jan 11, 2013* R16 Sydney International ATP 250 Hard
John Isner #11 7-6(4) 6-3 Ryan Harrison #48 Match data Jul 14, 2012* SF Newport ATP 250 Grass
John Isner #25 6-1 7-5 Ryan Harrison #326 Match data Feb 18, 2010* R32 Memphis ATP 500 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
Ryan Harrison #1,551 #40 1,160 1,893 117 156 42.9% 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 Ryan Harrison
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 2008 1–1 50.0% #748 1,509 0 0
18 — — — — — — — 2010 4–9 30.8% #173 1,621 0 0
19 — — — — — — — 2011 14–19 42.4% #79 1,730 0 0
20 — — — — — — — 2012 21–21 50.0% #69 1,766 0 0
21 — — — — — — — 2013 11–21 34.4% #100 1,733 0 0
22 2007 8–5 61.5% #106 1,656 0 0 2014 5–13 27.8% #191 1,731 0 0
23 2008 11–19 36.7% #144 1,607 0 0 2015 5–8 38.5% #112 1,682 0 0
24 2009 27–18 60.0% #34 1,829 0 0 2016 11–11 50.0% #90 1,823 0 0
25 2010 38–20 65.5% #19 1,884 0 1 2017 20–23 46.5% #47 1,804 0 1
26 2011 34–19 64.2% #18 2,020 0 3 2018 21–21 50.0% #62 1,765 0 1
27 2012 41–19 68.3% #14 1,977 0 5 2019 3–7 30.0% #302 1,666 0 1
28 2013 38–22 63.3% #14 1,984 0 7 2020 1–1 50.0% #479 1,648 0 1
29 2014 37–21 63.8% #19 1,935 0 9 2021 0–1 0.0% #456 1,625 0 1
30 2015 45–23 66.2% #11 2,028 0 10 — — — — — — —
31 2016 30–20 60.0% #19 2,021 0 10 — — — — — — —
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 Ryan Harrison
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 %
16 — — — — — — — — — — — — — 2008 — — — — 1 1 2 50.0% — — — —
18 — — — — — — — — — — — — — 2010 2 7 9 22.2% — — — — 2 2 4 50.0%
19 — — — — — — — — — — — — — 2011 13 14 27 48.1% 0 2 2 0.0% 1 3 4 25.0%
20 — — — — — — — — — — — — — 2012 11 13 24 45.8% 3 4 7 42.9% 7 4 11 63.6%
21 — — — — — — — — — — — — — 2013 9 14 23 39.1% 1 3 4 25.0% 1 4 5 20.0%
22 2007 8 4 12 66.7% — — — — 0 1 1 0.0% 2014 5 10 15 33.3% 0 1 1 0.0% 0 2 2 0.0%
23 2008 9 12 21 42.9% 1 3 4 25.0% 1 4 5 20.0% 2015 5 7 12 41.7% — — — — 0 1 1 0.0%
24 2009 25 17 42 59.5% 2 1 3 66.7% — — — — 2016 11 10 21 52.4% — — — — 0 1 1 0.0%
25 2010 29 13 42 69.0% 8 6 14 57.1% 1 1 2 50.0% 2017 15 13 28 53.6% 4 7 11 36.4% 1 3 4 25.0%
26 2011 26 13 39 66.7% 2 5 7 28.6% 6 1 7 85.7% 2018 17 12 29 58.6% 3 5 8 37.5% 1 4 5 20.0%
27 2012 27 12 39 69.2% 6 5 11 54.5% 8 2 10 80.0% 2019 2 6 8 25.0% 1 1 2 50.0% — — — —
28 2013 26 14 40 65.0% 8 5 13 61.5% 4 3 7 57.1% 2020 1 1 2 50.0% — — — — — — — —
29 2014 27 14 41 65.9% 6 5 11 54.5% 4 2 6 66.7% 2021 0 1 1 0.0% — — — — — — — —
30 2015 31 14 45 68.9% 10 6 16 62.5% 4 3 7 57.1% — — — — — — — — — — — — —
31 2016 22 13 35 62.9% 5 5 10 50.0% 3 2 5 60.0% — — — — — — — — — — — — —
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% — 91 108 199 45.7% 13 24 37 35.1% 13 24 37 35.1%

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 269/273 of Ryan Harrison'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 Ryan Harrison
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%
16 — —/— — — — — — — — — — 2008 2/2 3.0 3.0 54.1% 69.2% 41.5% 23.8% 83.3% 56.1% 38.8%
18 — —/— — — — — — — — — — 2010 13/13 6.5 3.5 61.1% 70.0% 49.0% 63.6% 35.7% 62.0% 33.5%
19 — —/— — — — — — — — — — 2011 33/33 6.0 4.3 56.1% 67.7% 49.7% 53.1% 41.3% 59.9% 36.5%
20 — —/— — — — — — — — — — 2012 41/42 6.5 2.7 61.3% 71.1% 52.7% 62.0% 40.6% 64.2% 35.3%
21 — —/— — — — — — — — — — 2013 32/32 7.0 3.4 58.9% 70.4% 49.8% 61.7% 36.1% 61.9% 31.0%
22 2007 13/13 19.6 3.1 67.2% 78.2% 59.4% 65.5% 19.8% 71.9% 26.6% 2014 18/18 5.2 3.3 58.9% 69.1% 47.9% 62.2% 36.8% 60.4% 32.4%
23 2008 29/30 15.0 3.4 66.9% 77.1% 52.3% 60.0% 26.1% 68.8% 27.4% 2015 12/13 4.7 3.5 59.2% 67.9% 51.2% 54.2% 47.3% 61.0% 35.0%
24 2009 45/45 14.5 2.5 67.1% 75.0% 57.4% 65.9% 29.5% 69.1% 30.0% 2016 22/22 8.0 3.3 60.1% 75.6% 53.4% 64.2% 45.3% 66.7% 34.1%
25 2010 58/58 17.8 2.3 69.1% 76.5% 55.9% 68.0% 39.3% 70.1% 29.9% 2017 42/43 7.5 3.4 59.3% 71.7% 49.8% 59.7% 40.6% 62.7% 34.5%
26 2011 53/53 15.2 2.8 69.2% 78.0% 55.6% 62.5% 40.1% 71.2% 31.5% 2018 41/42 8.8 3.3 59.4% 74.6% 52.9% 63.3% 42.8% 65.5% 33.7%
27 2012 56/60 16.7 2.2 67.9% 78.2% 57.0% 72.2% 33.2% 71.6% 31.1% 2019 10/10 9.7 3.3 59.8% 76.7% 53.4% 62.5% 41.5% 66.9% 31.5%
28 2013 60/60 16.3 1.7 67.7% 79.4% 57.8% 66.5% 33.7% 72.2% 31.1% 2020 2/2 8.5 5.0 62.4% 72.0% 45.4% 87.5% 51.4% 62.0% 39.2%
29 2014 57/58 17.4 1.8 67.8% 79.1% 57.8% 73.0% 27.3% 72.1% 30.2% 2021 1/1 4.0 4.0 52.4% 77.3% 42.5% 50.0% 7.7% 60.7% 32.3%
30 2015 68/68 18.5 1.8 70.3% 80.2% 58.6% 74.8% 37.5% 73.8% 29.6% — —/— — — — — — — — — —
31 2016 50/50 23.2 2.7 69.2% 82.4% 55.3% 68.3% 35.9% 73.9% 30.7% — —/— — — — — — — — — —
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% — 269/273 7.0 3.4 59.3% 71.5% 50.9% 60.5% 41.0% 63.1% 34.1%

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 John Isner Ryan Harrison
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
16 — — — — — — — — — — — — — — — — 2008 1510 109.4 -0.50 -0.21 0.883 47.8% — — — 50.0% -0.50 — — — -0.23
17 — — — — — — — — — — — — — — — — 2009 1483 102.7 — — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — 2010 1622 121.0 -1.95 -0.93 0.883 48.0% +22 — -44 36.4% -0.64 0–2 1–6 (14%) — +0.22
19 — — — — — — — — — — — — — — — — 2011 1731 142.1 -1.84 +0.18 0.911 48.2% +25 — -141 41.9% -0.56 8–5 (62%) 8–7 (53%) — -0.62
20 — — — — — — — — — — — — — — — — 2012 1766 144.7 +0.78 -0.97 0.986 50.1% +4 -197 -19 48.1% -0.14 7–5 (58%) 9–10 (47%) — +0.17
21 — — — — — — — — — — — — — — — — 2013 1733 141.2 -1.38 -3.31 0.814 47.6% +29 -163 -28 37.8% -0.88 4–7 (36%) 7–8 (47%) — -2.47
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 2014 1731 124.6 -2.06 -2.39 0.818 46.9% -6 — — 30.8% -1.03 0–4 (0%) 0–6 (0%) — -1.35
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 2015 1683 136.1 -1.56 -0.20 0.896 47.9% +56 — — 37.5% -0.97 3–4 (43%) 5–4 (56%) — -0.80
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 2016 1823 145.9 +1.68 +0.07 1.026 50.5% +50 — — 50.0% +0.13 3–3 (50%) 7–7 (50%) — -1.05
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 2017 1804 149.1 -0.84 -0.52 0.924 48.8% +34 -212 -220 44.7% -0.27 7–4 (64%) 6–14 (30%) — -0.44
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 2018 1765 140.3 +0.71 -0.88 0.975 49.6% +49 -187 -201 47.1% -0.02 9–6 (60%) 10–18 (36%) — +1.25
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 2019 1666 125.9 +0.37 -1.19 0.953 49.3% +45 — — 37.5% -0.33 0–2 0–3 (0%) — -0.37
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 2020 1648 107.2 -0.76 -0.96 1.030 52.5% — — — 60.0% +1.40 0–1 0–1 — +0.10
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 2021 1626 97.4 -2.02 -0.76 0.821 45.8% — — — 33.3% -1.33 0–1 — — +0.19
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 2022 1622 104.0 — — — — — — — — — — — — —
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 2023 1601 98.7 — — — — — — — — — — — — —
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 — 1893 144.8 -0.46 -1.00 0.923 48.9% +31 -195 -90 43.1% -0.38 41–44 (48%) 53–84 (39%) 92.6 -1.99

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.