H2H data updated: 2026-09-12 00:00 UTC

Kei Nishikori vs Carlos Berlocq H2H: 2-1

Kei Nishikori holds a 2–1 lead over Carlos Berlocq in their ATP head-to-head. Across 3 main-draw meetings, they are tied 1–1 on hard courts, while Kei Nishikori leads 1–0 on clay. Most recently, Kei Nishikori won the 2017 Argentina Open semifinal 4-6 6-4 6-3.

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Kei Nishikori
Japan Age 36 Right-Handed 178 cm / 5'10"
H2H
2 – 1
3 main-draw meetings
Carlos Berlocq
ARG Age 43 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kei Nishikori #5 4-6 6-4 6-3 Carlos Berlocq #77 Match data Feb 18, 2017* SF Argentina Open ATP 250 Clay
Carlos Berlocq #85 6-2 6-2 Kei Nishikori #16 Match data Mar 12, 2013* R32 Indian Wells Open Masters 1000 Hard
Kei Nishikori #18 7-6(4) 6-4 6-1 Carlos Berlocq #68 Match data Jan 17, 2013* R64 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
Kei Nishikori #481 #4 6,385 2,275 436 232 65.3% 0 0 0 6 6 12
Carlos Berlocq #505 #37 1,086 1,853 127 187 40.4% 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 Kei Nishikori Carlos Berlocq
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2007 3–5 37.5% #286 1,576 0 0 — — — — — — —
18 2008 16–11 59.3% #63 1,758 0 1 — — — — — — —
19 2009 3–6 33.3% #418 1,723 0 1 — — — — — — —
20 2010 3–9 25.0% #98 1,735 0 1 — — — — — — —
21 2011 32–22 59.3% #25 1,923 0 1 — — — — — — —
22 2012 35–18 66.0% #19 2,007 0 2 2005 0–1 0.0% #79 1,454 0 0
23 2013 34–19 64.2% #17 1,946 0 3 2006 5–17 22.7% #132 1,428 0 0
24 2014 52–15 77.6% #5 2,211 0 7 2007 11–15 42.3% #85 1,551 0 0
25 2015 51–17 75.0% #8 2,153 0 10 2008 3–16 15.8% #157 1,450 0 0
26 2016 57–21 73.1% #5 2,183 0 11 — — — — — — —
27 2017 30–14 68.2% #22 2,080 0 11 2010 3–3 50.0% #66 1,542 0 0
28 2018 43–21 67.2% #9 2,107 0 11 2011 15–23 39.5% #60 1,657 0 0
29 2019 29–14 67.4% #13 2,002 0 12 2012 23–29 44.2% #66 1,656 0 0
30 2020 2–4 33.3% #41 1,912 0 12 2013 26–24 52.0% #41 1,827 0 1
31 2021 27–16 62.8% #47 1,978 0 12 2014 17–17 50.0% #72 1,743 0 2
32 — — — — — — — 2015 7–9 43.8% #111 1,693 0 2
33 2023 2–1 66.7% #352 1,968 0 12 2016 4–6 40.0% #95 1,734 0 2
34 2024 7–9 43.8% #106 1,871 0 12 2017 12–19 38.7% #112 1,694 0 2
35 2025 9–9 50.0% #156 1,814 0 12 2018 1–5 16.7% #139 1,667 0 2
36 2026 1–1 50.0% #481 1,770 0 12 2019 0–3 0.0% #507 1,505 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 Kei Nishikori Carlos Berlocq
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 2007 3 5 8 37.5% — — — — — — — — — — — — — — — — — — — — —
18 2008 14 7 21 66.7% 0 1 1 0.0% 2 3 5 40.0% — — — — — — — — — — — — —
19 2009 3 6 9 33.3% — — — — — — — — — — — — — — — — — — — — —
20 2010 2 5 7 28.6% 1 1 2 50.0% 0 3 3 0.0% — — — — — — — — — — — — —
21 2011 22 14 36 61.1% 7 5 12 58.3% 3 3 6 50.0% — — — — — — — — — — — — —
22 2012 21 11 32 65.6% 7 4 11 63.6% 7 3 10 70.0% 2005 — — — — 0 1 1 0.0% — — — —
23 2013 24 13 37 64.9% 8 4 12 66.7% 2 2 4 50.0% 2006 1 3 4 25.0% 4 13 17 23.5% 0 1 1 0.0%
24 2014 37 11 48 77.1% 10 2 12 83.3% 5 2 7 71.4% 2007 0 4 4 0.0% 10 9 19 52.6% 1 2 3 33.3%
25 2015 33 12 45 73.3% 14 3 17 82.4% 4 2 6 66.7% 2008 0 4 4 0.0% 3 11 14 21.4% 0 1 1 0.0%
26 2016 40 15 55 72.7% 13 4 17 76.5% 4 2 6 66.7% — — — — — — — — — — — — —
27 2017 15 6 21 71.4% 12 6 18 66.7% 3 2 5 60.0% 2010 0 1 1 0.0% 3 2 5 60.0% — — — —
28 2018 27 14 41 65.9% 11 5 16 68.8% 5 2 7 71.4% 2011 4 7 11 36.4% 10 14 24 41.7% 1 2 3 33.3%
29 2019 15 8 23 65.2% 10 5 15 66.7% 4 1 5 80.0% 2012 7 14 21 33.3% 15 11 26 57.7% 1 4 5 20.0%
30 2020 — — — — 2 4 6 33.3% — — — — 2013 10 9 19 52.6% 15 12 27 55.6% 1 3 4 25.0%
31 2021 17 10 27 63.0% 8 4 12 66.7% 2 2 4 50.0% 2014 1 7 8 12.5% 15 8 23 65.2% 1 2 3 33.3%
32 — — — — — — — — — — — — — 2015 1 3 4 25.0% 6 6 12 50.0% — — — —
33 2023 2 1 3 66.7% — — — — — — — — 2016 0 1 1 0.0% 4 5 9 44.4% — — — —
34 2024 6 6 12 50.0% 1 2 3 33.3% 0 1 1 0.0% 2017 3 3 6 50.0% 8 13 21 38.1% 1 3 4 25.0%
35 2025 6 6 12 50.0% 3 3 6 50.0% — — — — 2018 0 1 1 0.0% 1 4 5 20.0% — — — —
36 2026 1 1 2 50.0% — — — — — — — — 2019 — — — — 0 3 3 0.0% — — — —
Career — 288 151 439 65.6% 107 53 160 66.9% 41 28 69 59.4% — 27 57 84 32.1% 94 112 206 45.6% 6 18 24 25.0%

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 643/668 of Kei Nishikori's and 307/314 of Carlos Berlocq'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 Kei Nishikori Carlos Berlocq
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 8/8 3.0 3.5 58.6% 69.8% 47.8% 60.4% 48.1% 60.9% 35.4% — —/— — — — — — — — — —
18 2008 25/27 3.2 2.9 59.9% 69.1% 50.9% 57.2% 45.4% 61.8% 37.4% — —/— — — — — — — — — —
19 2009 9/9 2.8 3.1 53.7% 64.6% 49.4% 39.4% 45.3% 57.3% 37.7% — —/— — — — — — — — — —
20 2010 12/12 3.1 4.0 60.3% 64.3% 43.5% 45.8% 23.0% 56.4% 33.0% — —/— — — — — — — — — —
21 2011 54/54 2.5 2.9 60.7% 68.5% 52.4% 59.5% 39.7% 62.0% 38.2% — —/— — — — — — — — — —
22 2012 48/53 2.4 2.6 62.6% 70.0% 53.6% 55.2% 39.9% 63.6% 41.4% 2005 1/1 1.0 4.0 59.5% 68.0% 29.4% 33.3% 0.0% 52.4% 30.8%
23 2013 53/53 2.6 2.8 62.3% 68.9% 52.2% 55.7% 47.2% 62.6% 40.6% 2006 22/22 2.2 3.0 59.9% 60.1% 45.1% 54.3% 54.5% 53.6% 38.5%
24 2014 66/67 4.3 2.8 60.6% 73.4% 53.9% 63.1% 42.6% 65.6% 39.9% 2007 23/26 3.7 1.7 61.9% 66.6% 50.1% 54.9% 40.9% 59.6% 34.5%
25 2015 66/68 4.6 2.5 59.6% 74.7% 54.5% 62.3% 44.7% 66.6% 39.3% 2008 19/19 3.3 2.3 61.7% 63.4% 43.1% 46.0% 40.2% 56.0% 37.5%
26 2016 71/78 3.4 2.4 61.0% 72.3% 53.9% 64.1% 47.7% 65.1% 40.2% — —/— — — — — — — — — —
27 2017 43/44 3.3 2.3 62.3% 71.9% 53.3% 64.2% 45.5% 64.9% 40.7% 2010 6/6 1.7 2.3 60.2% 63.2% 48.1% 56.2% 38.7% 57.2% 36.3%
28 2018 64/64 3.6 2.3 60.0% 71.3% 55.9% 60.0% 44.8% 65.2% 37.8% 2011 37/38 4.0 2.9 61.8% 67.3% 48.4% 51.3% 38.1% 59.9% 39.6%
29 2019 43/43 3.1 2.8 63.6% 70.1% 54.2% 51.2% 45.0% 64.3% 40.9% 2012 51/52 3.0 2.6 65.9% 65.3% 50.3% 53.2% 39.2% 59.9% 40.1%
30 2020 6/6 1.2 2.5 63.5% 62.2% 50.7% 57.8% 31.4% 58.0% 37.8% 2013 49/50 3.3 2.3 67.8% 70.4% 50.0% 55.5% 41.8% 63.7% 37.3%
31 2021 37/43 2.5 2.0 64.2% 65.6% 55.3% 57.2% 45.2% 62.0% 38.5% 2014 33/34 3.0 2.4 67.4% 66.7% 49.6% 60.6% 43.9% 61.1% 39.8%
32 — —/— — — — — — — — — — 2015 16/16 4.3 2.1 64.4% 68.4% 48.0% 56.4% 38.8% 61.0% 37.9%
33 2023 3/3 1.7 1.3 67.5% 73.8% 53.6% 52.8% 16.7% 67.2% 29.9% 2016 10/10 2.0 2.3 71.8% 60.9% 43.6% 56.0% 58.7% 56.5% 40.5%
34 2024 15/16 2.1 1.7 66.6% 66.7% 55.0% 58.6% 39.7% 62.7% 36.1% 2017 31/31 2.9 2.9 61.3% 65.2% 49.6% 55.6% 46.2% 59.0% 37.2%
35 2025 18/18 3.2 1.9 65.6% 68.6% 47.6% 53.2% 35.9% 61.9% 35.2% 2018 6/6 3.0 2.0 65.0% 64.3% 46.9% 47.6% 33.3% 58.5% 28.6%
36 2026 2/2 2.0 1.0 60.0% 72.0% 55.5% 0.0% 11.0% 64.0% 32.0% 2019 3/3 2.3 1.7 56.6% 53.3% 46.2% 36.5% 30.5% 50.1% 37.8%
Career — 643/668 3.3 2.6 61.5% 70.5% 53.3% 58.6% 43.3% 63.8% 39.1% — 307/314 3.2 2.5 64.3% 65.9% 48.5% 54.1% 42.3% 59.6% 38.1%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Kei Nishikori Carlos Berlocq
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 1576 116.9 -2.68 -0.02 0.904 48.6% +35 — — 38.9% -0.83 1–1 1–1 — +0.05 — — — — — — — — — — — — — — — —
18 2008 1758 125.8 -0.30 +0.72 0.981 49.7% +19 — -131 50.8% -0.10 8–2 (80%) 4–2 (67%) 108.5 +0.07 — — — — — — — — — — — — — — — —
19 2009 1724 129.5 -3.16 +1.29 0.884 47.6% +12 — — 35.3% -1.06 — 1–0 — -0.98 — — — — — — — — — — — — — — — —
20 2010 1735 129.7 -2.46 -1.12 0.757 44.8% +5 — -69 25.9% -1.74 2–1 (67%) 3–0 (100%) 105.5 -1.08 2003 1478 — — — — — — — — — — — — — —
21 2011 1923 151.1 -0.10 +1.28 1.007 50.3% +11 -301 -200 53.4% +0.20 14–3 (82%) 12–9 (57%) 113.8 +0.32 2004 1465 97.7 — — — — — — — — — — — — —
22 2012 2007 156.0 +1.03 +3.76 1.139 52.0% +15 -248 -162 59.8% +0.79 15–4 (79%) 9–8 (53%) 111.3 +1.94 2005 1454 100.8 -2.29 -5.10 0.646 40.4% — — — 0.0% -4.00 — — — +0.19
23 2013 1946 158.7 -0.22 +3.58 1.086 51.5% +28 -64 -111 62.7% +0.75 6–4 (60%) 9–7 (56%) 102.6 +3.21 2006 1428 113.9 -5.99 +0.03 0.831 46.6% +61 +41 — 30.6% -1.06 1–4 (20%) 3–4 (43%) 97.6 +0.77
24 2014 2211 173.9 +2.73 +4.62 1.162 52.6% +18 -194 -285 68.2% +1.09 21–2 (91%) 19–10 (66%) 119.8 -0.99 2007 1551 123.3 -2.82 -1.97 0.854 47.4% -83 +68 -87 44.3% -0.26 2–3 (40%) 5–7 (42%) 99.9 +1.33
25 2015 2153 175.0 +2.66 +4.32 1.175 52.6% +22 +6 -165 69.5% +1.23 17–6 (74%) 9–12 (43%) 100.1 +2.30 2008 1451 116.8 -4.78 -0.93 0.851 46.7% -26 +71 — 26.1% -1.33 1–6 (14%) 3–5 (38%) 93.2 -0.25
26 2016 2183 179.2 +2.13 +4.67 1.151 52.6% +16 +25 -149 69.4% +1.15 14–5 (74%) 16–9 (64%) 107.0 -1.29 — — — — — — — — — — — — — — — —
27 2017 2080 165.7 +1.81 +4.17 1.159 52.4% +66 +70 -116 63.6% +0.88 12–5 (71%) 9–10 (47%) 98.7 -0.06 2010 1542 116.3 -1.42 -0.42 0.848 46.7% — +85 — 42.9% -0.93 1–0 2–0 — +0.01
28 2018 2107 171.3 +1.83 +2.94 1.086 51.5% +11 +66 -54 62.6% +0.63 12–5 (71%) 17–5 (77%) 109.4 -1.99 2011 1658 141.7 -1.96 +1.98 0.989 49.4% -156 +1 -200 41.5% -0.36 5–10 (33%) 5–10 (33%) 97.6 -1.59
29 2019 2002 158.4 +0.34 +4.57 1.145 52.3% +1 +149 +96 62.7% +0.73 8–6 (57%) 9–7 (56%) 95.3 +1.02 2012 1657 148.5 -2.64 +2.36 1.001 50.1% -91 +97 -221 45.1% -0.02 8–6 (57%) 7–8 (47%) 103.8 +1.93
30 2020 1913 109.6 -1.35 -0.42 0.900 47.5% — +89 — 42.1% -0.95 1–2 (33%) 2–1 (67%) 96.6 +0.14 2013 1827 157.9 +0.16 +1.05 1.028 50.1% -69 -10 -393 50.0% +0.15 8–8 (50%) 6–10 (38%) 99.6 -1.20
31 2021 1978 161.2 -0.40 +2.72 1.013 50.2% +38 +96 +56 55.2% +0.23 14–7 (67%) 9–8 (53%) 102.5 -2.26 2014 1744 139.2 -1.96 +1.94 1.023 50.5% -88 +143 -297 48.1% -0.04 5–4 (56%) 6–4 (60%) 101.5 -0.42
32 — — — — — — — — — — — — — — — — 2015 1693 139.3 -0.88 +1.29 0.973 49.9% -34 +75 — 46.7% -0.53 3–5 (38%) 4–1 (80%) 100.5 -0.65
33 2023 1968 114.7 +1.39 +0.98 0.912 49.4% +49 — — 66.7% -0.17 — 3–0 (100%) — -0.03 2016 1735 126.6 -2.73 +1.14 0.930 49.0% — +95 — 36.4% -0.59 0–1 1–1 — -0.30
34 2024 1872 134.6 -0.60 +0.92 0.967 49.3% +66 +121 — 45.0% -0.42 4–2 (67%) 2–2 (50%) 99.6 -0.17 2017 1695 138.3 -3.23 +0.60 0.906 48.3% -51 +53 -241 40.7% -0.74 5–8 (38%) 5–3 (63%) 100.0 -0.39
35 2025 1814 129.1 -1.20 -0.68 0.924 48.6% +64 +99 — 47.6% -0.24 6–2 (75%) 2–2 (50%) 100.6 -1.30 2018 1667 119.0 -2.49 -0.73 0.689 44.3% — +27 — 20.0% -1.47 1–0 0–1 — -0.36
36 2026 1771 106.9 +1.35 -0.64 0.889 47.0% — — — 40.0% -0.60 1–0 0–1 — -0.11 2019 1505 105.1 -3.42 -0.56 0.757 43.8% — +57 — 14.3% -2.43 0–1 0–1 — +0.25
Career — 2275 168.2 +0.96 +3.18 1.082 51.3% +23 -11 -121 60.7% +0.61 156–57 (73%) 136–94 (59%) 115.6 -0.18 — 1853 142.9 -2.37 +0.92 0.943 48.9% -77 +59 -245 42.0% -0.41 40–56 (42%) 47–55 (46%) 98.7 -0.22

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.