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

Jack Sock vs Ivo Karlovic H2H: 1-4

Ivo Karlovic holds a 4–1 lead over Jack Sock in their ATP head-to-head. Across 5 main-draw meetings, Ivo Karlovic leads 3–0 on hard courts, while Jack Sock leads 1–0 on clay. Most recently, Ivo Karlovic won the 2016 Washington Open quarterfinal 7-6(4) 7-6(6).

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

Jack Sock
USA Age 33 Right-Handed 191 cm / 6'3"
H2H
1 – 4
5 main draw meetings
Ivo Karlovic
CRO Age 47 Right-Handed 211 cm / 6'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ivo Karlovic #35 7-6(4) 7-6(6) Jack Sock #26 Match data Jul 23, 2016* QF Washington Open ATP 500 Hard
Ivo Karlovic #24 7-6(3) 6-4 Jack Sock #39 Match data Jul 18, 2015* SF Newport ATP 250 Grass
Jack Sock #94 6-1 6-4 Ivo Karlovic #52 Match data Apr 10, 2014* R32 U.S. Men's Clay Court Championship ATP 250 Clay
Ivo Karlovic #80 7-6(4) 6-7(3) 6-3 Jack Sock #85 Match data Feb 15, 2014* QF Memphis ATP 250 Hard
Ivo Karlovic #143 3-6 7-6(8) 6-2 Jack Sock #125 Match data Mar 9, 2013* R128 Indian Wells Open Masters 1000 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
Jack Sock #808 #8 3,165 2,105 177 148 54.5% 0 1 0 0 3 4
Ivo Karlovic #1,066 #14 2,295 1,999 363 335 52.0% 0 0 0 0 8 8

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 Jack Sock Ivo Karlovic
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2010 0–1 0.0% — 1,458 0 0 — — — — — — —
18 2011 1–2 33.3% #381 1,489 0 0 — — — — — — —
19 2012 5–7 41.7% #150 1,601 0 0 — — — — — — —
20 2013 10–13 43.5% #102 1,696 0 0 — — — — — — —
21 2014 27–20 57.4% #42 1,893 0 0 — — — — — — —
22 2015 33–18 64.7% #26 1,984 0 1 2001 0–1 0.0% #193 1,500 0 0
23 2016 36–19 65.5% #23 2,024 0 1 2002 1–2 33.3% #201 1,454 0 0
24 2017 38–20 65.5% #8 1,986 0 4 2003 9–7 56.2% #73 1,665 0 0
25 2018 9–21 30.0% #106 1,715 0 4 2004 18–25 41.9% #61 1,685 0 0
26 2019 0–4 0.0% #253 1,634 0 4 2005 17–22 43.6% #70 1,745 0 0
27 2020 3–4 42.9% #253 1,725 0 4 2006 16–18 47.1% #98 1,633 0 0
28 2021 6–5 54.5% #145 1,775 0 4 2007 45–21 68.2% #22 1,931 0 3
29 2022 7–10 41.2% #131 1,747 0 4 2008 29–25 53.7% #26 1,814 0 4
30 2023 2–4 33.3% #671 1,716 0 4 2009 21–22 48.8% #37 1,797 0 4
31 — — — — — — — 2010 16–9 64.0% #73 1,866 0 4
32 — — — — — — — 2011 16–20 44.4% #56 1,821 0 4
33 — — — — — — — 2012 14–16 46.7% #100 1,769 0 4
34 — — — — — — — 2013 15–13 53.6% #78 1,774 0 5
35 — — — — — — — 2014 36–28 56.2% #27 1,856 0 5
36 — — — — — — — 2015 38–25 60.3% #23 1,917 0 6
37 — — — — — — — 2016 32–22 59.3% #20 1,972 0 8
38 — — — — — — — 2017 15–20 42.9% #80 1,771 0 8
39 — — — — — — — 2018 11–16 40.7% #100 1,645 0 8
40 — — — — — — — 2019 11–15 42.3% #95 1,675 0 8
41 — — — — — — — 2020 1–4 20.0% #147 1,620 0 8
42 — — — — — — — 2021 2–4 33.3% #279 1,625 0 8

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 Jack Sock Ivo Karlovic
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 2010 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 2011 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2012 4 6 10 40.0% — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
20 2013 7 10 17 41.2% 2 2 4 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
21 2014 18 15 33 54.5% 5 3 8 62.5% 4 2 6 66.7% — — — — — — — — — — — — — — — — — — — — —
22 2015 21 12 33 63.6% 9 4 13 69.2% 3 2 5 60.0% — — — — 2001 0 1 1 0.0% — — — — — — — — — — — —
23 2016 26 13 39 66.7% 8 5 13 61.5% 2 1 3 66.7% — — — — 2002 1 1 2 50.0% — — — — 0 1 1 0.0% — — — —
24 2017 33 15 48 68.8% 4 4 8 50.0% 1 1 2 50.0% — — — — 2003 5 4 9 55.6% 1 1 2 50.0% 3 2 5 60.0% — — — —
25 2018 7 14 21 33.3% 2 5 7 28.6% 0 2 2 0.0% — — — — 2004 6 12 18 33.3% 5 7 12 41.7% 5 3 8 62.5% 2 3 5 40.0%
26 2019 0 4 4 0.0% — — — — — — — — — — — — 2005 9 11 20 45.0% 0 6 6 0.0% 7 3 10 70.0% 1 2 3 33.3%
27 2020 2 3 5 40.0% 1 1 2 50.0% — — — — — — — — 2006 8 11 19 42.1% 6 4 10 60.0% 0 2 2 0.0% 2 1 3 66.7%
28 2021 4 4 8 50.0% — — — — 2 1 3 66.7% — — — — 2007 30 16 46 65.2% 6 2 8 75.0% 8 2 10 80.0% 1 1 2 50.0%
29 2022 4 7 11 36.4% 0 1 1 0.0% 3 2 5 60.0% — — — — 2008 17 14 31 54.8% 5 8 13 38.5% 7 2 9 77.8% 0 1 1 0.0%
30 2023 2 3 5 40.0% 0 1 1 0.0% — — — — — — — — 2009 9 15 24 37.5% 5 5 10 50.0% 7 2 9 77.8% — — — —
31 — — — — — — — — — — — — — — — — — 2010 14 7 21 66.7% 2 2 4 50.0% — — — — — — — —
32 — — — — — — — — — — — — — — — — — 2011 12 13 25 48.0% 3 4 7 42.9% 1 3 4 25.0% — — — —
33 — — — — — — — — — — — — — — — — — 2012 12 11 23 52.2% 0 3 3 0.0% 2 2 4 50.0% — — — —
34 — — — — — — — — — — — — — — — — — 2013 13 11 24 54.2% 0 1 1 0.0% 2 1 3 66.7% — — — —
35 — — — — — — — — — — — — — — — — — 2014 24 18 42 57.1% 7 6 13 53.8% 5 4 9 55.6% — — — —
36 — — — — — — — — — — — — — — — — — 2015 26 18 44 59.1% 1 3 4 25.0% 11 4 15 73.3% — — — —
37 — — — — — — — — — — — — — — — — — 2016 20 13 33 60.6% 4 6 10 40.0% 8 3 11 72.7% — — — —
38 — — — — — — — — — — — — — — — — — 2017 8 12 20 40.0% 3 4 7 42.9% 4 4 8 50.0% — — — —
39 — — — — — — — — — — — — — — — — — 2018 4 7 11 36.4% 5 6 11 45.5% 2 3 5 40.0% — — — —
40 — — — — — — — — — — — — — — — — — 2019 9 11 20 45.0% 1 2 3 33.3% 1 2 3 33.3% — — — —
41 — — — — — — — — — — — — — — — — — 2020 1 4 5 20.0% — — — — — — — — — — — —
42 — — — — — — — — — — — — — — — — — 2021 1 3 4 25.0% — — — — 1 1 2 50.0% — — — —
Career — 129 109 238 54.2% 31 26 57 54.4% 17 13 30 56.7% — — — — — 229 213 442 51.8% 54 70 124 43.5% 74 44 118 62.7% 6 8 14 42.9%

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 322/325 of Jack Sock's and 692/698 of Ivo Karlovic'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 Jack Sock Ivo Karlovic
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 2010 1/1 4.0 7.0 55.1% 63.3% 57.5% 54.5% 66.7% 60.7% 30.4% — —/— — — — — — — — — —
18 2011 3/3 8.7 4.0 54.7% 65.2% 50.8% 31.0% 29.1% 59.4% 35.0% — —/— — — — — — — — — —
19 2012 12/12 9.5 5.9 55.2% 71.3% 52.4% 69.4% 30.1% 63.0% 34.3% — —/— — — — — — — — — —
20 2013 23/23 7.0 5.2 55.0% 75.0% 51.5% 60.4% 55.3% 64.5% 34.9% — —/— — — — — — — — — —
21 2014 47/47 6.4 3.9 58.3% 76.5% 54.5% 68.2% 49.3% 67.5% 34.6% — —/— — — — — — — — — —
22 2015 50/51 6.1 5.2 56.9% 75.9% 53.0% 63.5% 47.5% 66.2% 35.3% 2001 1/1 16.0 2.0 76.6% 71.4% 46.7% 60.0% 50.0% 65.6% 32.4%
23 2016 54/55 6.7 3.7 58.3% 75.8% 55.2% 67.7% 37.5% 67.2% 36.5% 2002 2/3 15.0 8.5 53.7% 75.3% 40.4% 71.7% 75.0% 59.2% 28.6%
24 2017 57/58 6.8 4.0 59.7% 72.8% 52.4% 56.9% 40.8% 64.7% 36.3% 2003 16/16 17.6 6.3 61.1% 83.8% 53.3% 73.0% 28.3% 71.9% 29.0%
25 2018 30/30 6.3 4.3 61.2% 73.0% 51.0% 58.6% 36.7% 64.5% 34.7% 2004 40/43 21.1 5.4 61.9% 81.6% 52.8% 63.7% 25.9% 70.3% 26.8%
26 2019 4/4 10.8 4.5 63.0% 70.4% 49.7% 44.3% 62.5% 62.7% 28.6% 2005 39/39 18.7 4.4 63.3% 82.0% 51.5% 69.3% 31.9% 70.9% 25.5%
27 2020 7/7 5.6 4.7 60.6% 69.1% 51.8% 48.5% 45.2% 62.2% 35.7% 2006 34/34 18.3 3.1 65.0% 82.0% 50.3% 70.9% 34.6% 70.7% 28.1%
28 2021 11/11 8.5 3.8 59.3% 75.1% 47.0% 61.1% 46.0% 63.8% 36.2% 2007 64/66 20.6 1.9 68.7% 84.3% 54.5% 71.9% 34.1% 74.9% 29.5%
29 2022 17/17 6.2 3.7 64.8% 70.1% 48.6% 58.5% 40.9% 62.8% 35.7% 2008 54/54 17.8 1.8 66.2% 81.4% 53.2% 66.2% 31.8% 71.8% 30.1%
30 2023 6/6 6.0 5.5 56.9% 72.8% 47.5% 70.6% 31.7% 61.8% 33.8% 2009 43/43 20.7 2.3 66.4% 84.9% 54.8% 62.5% 39.2% 74.8% 29.1%
31 — —/— — — — — — — — — — 2010 25/25 18.9 2.1 64.2% 83.5% 51.8% 68.0% 27.1% 72.1% 30.3%
32 — —/— — — — — — — — — — 2011 36/36 17.6 2.7 66.4% 80.8% 49.8% 65.5% 37.0% 70.5% 28.4%
33 — —/— — — — — — — — — — 2012 30/30 16.9 2.9 64.7% 79.5% 52.3% 61.0% 31.2% 69.7% 30.5%
34 — —/— — — — — — — — — — 2013 28/28 17.3 3.4 64.1% 82.1% 55.1% 61.7% 28.7% 72.4% 27.8%
35 — —/— — — — — — — — — — 2014 64/64 18.5 2.8 66.3% 82.8% 54.0% 68.7% 34.9% 73.2% 27.5%
36 — —/— — — — — — — — — — 2015 63/63 23.0 3.6 66.4% 84.9% 57.0% 73.1% 33.3% 75.5% 29.0%
37 — —/— — — — — — — — — — 2016 54/54 20.9 5.2 63.8% 81.7% 56.4% 72.1% 35.7% 72.6% 26.9%
38 — —/— — — — — — — — — — 2017 35/35 20.8 5.1 65.1% 81.8% 56.2% 67.0% 29.2% 72.7% 25.9%
39 — —/— — — — — — — — — — 2018 27/27 23.5 5.9 65.1% 83.9% 54.4% 71.8% 28.8% 73.4% 25.9%
40 — —/— — — — — — — — — — 2019 26/26 23.7 4.3 65.0% 83.3% 54.3% 72.4% 24.8% 73.2% 25.6%
41 — —/— — — — — — — — — — 2020 5/5 13.4 3.6 66.8% 75.6% 56.8% 71.8% 21.3% 69.5% 24.7%
42 — —/— — — — — — — — — — 2021 6/6 18.2 5.2 64.8% 79.3% 46.0% 44.2% 29.2% 67.6% 27.1%
Career — 322/325 6.7 4.3 58.6% 74.2% 52.6% 62.1% 43.2% 65.3% 35.4% — 692/698 19.8 3.5 65.3% 82.6% 53.8% 68.2% 32.4% 72.6% 28.1%

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 Jack Sock Ivo Karlovic
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 2010 1458 94.9 -2.51 -1.84 0.774 45.3% — — — 25.0% -1.75 — — — +0.07 — — — — — — — — — — — — — — — —
18 2011 1490 107.8 -1.04 +0.61 0.863 46.9% +9 — — 33.3% -1.00 — 0–1 — +0.29 — — — — — — — — — — — — — — — —
19 2012 1602 120.6 -0.99 -1.79 0.926 48.9% +18 — — 43.3% -0.67 2–3 (40%) 4–3 (57%) — +1.03 — — — — — — — — — — — — — — — —
20 2013 1696 140.5 +0.25 -0.25 0.983 50.1% -7 -46 — 47.2% -0.25 1–6 (14%) 3–5 (38%) — -0.01 — — — — — — — — — — — — — — — —
21 2014 1894 151.5 +2.13 +0.15 1.067 51.5% -36 -152 -188 56.5% +0.46 4–6 (40%) 10–11 (48%) — +0.38 2000 1493 98.8 — — — — — — — — — — — — —
22 2015 1985 166.3 +2.00 +0.71 1.042 51.0% -7 -65 -218 61.0% +0.61 11–5 (69%) 16–13 (55%) — -0.24 2001 1501 100.2 -4.08 -1.53 0.943 47.8% — — — 0.0% -2.00 — 0–1 — +0.14
23 2016 2024 160.1 +2.86 +1.03 1.112 51.3% +3 -111 -222 60.1% +0.45 13–6 (68%) 17–13 (57%) — +1.63 2002 1455 101.0 -0.82 -1.26 0.701 45.7% — — — 42.9% -0.57 0–1 1–1 — -0.01
24 2017 1987 164.2 +1.24 +1.03 1.028 50.3% +39 -114 — 58.8% +0.23 18–9 (67%) 22–9 (71%) — +1.66 2003 1666 123.8 +5.40 -4.66 1.033 50.5% -35 — +2 54.3% +0.22 2–2 (50%) 9–10 (47%) — -0.07
25 2018 1716 137.8 +0.06 -1.43 0.976 49.6% +74 +66 — 43.4% -0.47 1–13 (7%) 8–7 (53%) — +2.03 2004 1686 136.3 +5.37 -7.05 0.904 48.9% -54 -121 +84 45.1% -0.31 10–14 (42%) 28–28 (50%) — -0.85
26 2019 1634 108.9 -0.40 -1.52 0.767 45.8% +41 — — 9.1% -1.91 — 0–3 (0%) — +0.14 2005 1745 141.3 +6.26 -7.68 0.875 48.7% -20 -269 +91 45.4% -0.26 6–7 (46%) 24–22 (52%) — -2.07
27 2020 1726 125.6 -1.79 -0.20 0.944 48.3% -53 — — 40.9% -0.73 2–1 (67%) 2–2 (50%) — -0.22 2006 1633 131.3 +6.13 -7.11 0.960 49.6% +16 -48 — 51.1% +0.03 7–9 (44%) 19–18 (51%) — +0.32
28 2021 1776 133.5 -0.49 -0.16 1.000 50.1% -49 — -56 53.6% +0.36 3–3 (50%) 2–5 (29%) — -0.96 2007 1931 150.5 +9.95 -5.32 1.173 51.8% -6 -289 -103 60.5% +0.53 17–8 (68%) 37–30 (55%) — -1.29
29 2022 1747 131.6 -0.95 -0.13 0.959 49.5% -34 — +59 52.3% -0.23 1–6 (14%) 5–5 (50%) — -1.19 2008 1815 150.1 +7.57 -4.88 1.069 50.7% +25 -181 +93 53.4% +0.24 7–10 (41%) 26–29 (47%) — +0.70
30 2023 1717 116.0 +0.17 -0.95 0.884 48.4% -15 — — 40.0% -0.73 1–2 (33%) 1–1 — -0.24 2009 1798 147.0 +8.98 -4.91 1.158 51.5% -104 -119 +253 51.8% +0.26 4–9 (31%) 14–24 (37%) — 0.00
31 — — — — — — — — — — — — — — — — 2010 1867 147.8 +6.46 -3.55 1.087 51.1% -26 -171 — 56.7% +0.33 4–0 (100%) 11–9 (55%) — -0.09
32 — — — — — — — — — — — — — — — — 2011 1822 147.5 +6.44 -5.95 0.962 49.6% +14 -88 +122 46.5% -0.14 5–5 (50%) 19–19 (50%) — -1.25
33 — — — — — — — — — — — — — — — — 2012 1769 144.3 +5.38 -4.85 1.007 49.8% +37 -113 +182 48.7% -0.18 2–6 (25%) 17–14 (55%) — -0.59
34 — — — — — — — — — — — — — — — — 2013 1774 137.0 +5.97 -5.23 1.007 50.0% +27 — +167 51.6% +0.06 6–4 (60%) 17–11 (61%) — +0.66
35 — — — — — — — — — — — — — — — — 2014 1857 153.7 +7.97 -6.74 1.029 49.9% +21 -115 +54 55.0% +0.13 11–8 (58%) 34–31 (52%) — +1.55
36 — — — — — — — — — — — — — — — — 2015 1917 155.1 +10.01 -5.54 1.186 51.7% -35 -231 +136 57.1% +0.52 15–12 (56%) 32–44 (42%) — +3.02
37 — — — — — — — — — — — — — — — — 2016 1973 155.0 +7.27 -7.09 0.983 50.0% -18 -250 +83 56.8% +0.16 12–6 (67%) 41–25 (62%) — +3.08
38 — — — — — — — — — — — — — — — — 2017 1771 141.4 +6.85 -7.48 0.952 49.6% +15 -53 +153 44.9% -0.17 6–5 (55%) 17–24 (41%) — +1.27
39 — — — — — — — — — — — — — — — — 2018 1646 126.4 +5.95 -7.94 0.974 49.6% +41 +26 +201 46.2% -0.10 5–9 (36%) 17–24 (41%) — +0.79
40 — — — — — — — — — — — — — — — — 2019 1675 134.3 +6.12 -7.61 0.954 49.4% +46 -25 +100 49.3% -0.17 2–6 (25%) 20–18 (53%) — +1.01
41 — — — — — — — — — — — — — — — — 2020 1621 114.5 +1.55 -3.38 0.808 46.4% +33 — — 28.6% -1.00 — 1–4 (20%) — -0.32
42 — — — — — — — — — — — — — — — — 2021 1626 114.4 +1.80 -4.17 0.837 47.4% +19 — — 31.3% -0.75 2–1 (67%) 0–3 (0%) — +0.12
Career — 2105 157.4 +1.18 +0.22 1.020 50.4% +5 -78 -125 53.7% +0.11 57–60 (49%) 90–78 (54%) 100.6 +1.35 — 2000 150.3 +7.24 -6.06 1.023 50.2% -4 -133 +101 51.7% +0.09 123–122 (50%) 384–389 (50%) 100.0 +0.88

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.