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

Kei Nishikori vs Sam Querrey H2H: 7-4

Kei Nishikori holds a 7–4 lead over Sam Querrey in their ATP head-to-head. Across 11 main-draw meetings, Kei Nishikori leads 7–3 on hard courts, while Sam Querrey leads 1–0 on grass. Most recently, Kei Nishikori won the 2021 Washington Open first round 6-4 6-3.

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Kei Nishikori
Japan Age 36 Right-Handed 178 cm / 5'10"
H2H
7 – 4
11 main draw meetings
Sam Querrey
USA Age 38 Right-Handed 198 cm / 6'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kei Nishikori #67 6-4 6-3 Sam Querrey #68 Match data Aug 4, 2021* R64 Washington Open ATP 500 Hard
Kei Nishikori #12 7-6(7) 6-4 Sam Querrey #57 Match data Oct 12, 2018* R16 Shanghai Masters Masters 1000 Hard
Sam Querrey #43 6-4 6-3 Kei Nishikori #6 Match data Feb 25, 2016* R16 Mexican Open ATP 500 Hard
Kei Nishikori #7 3-6 6-3 6-3 Sam Querrey #58 Match data Feb 13, 2016* SF Memphis ATP 250 Hard
Kei Nishikori #6 7-6(3) 6-3 Sam Querrey #50 Match data Oct 9, 2015* R16 Japan Open ATP 500 Hard
Kei Nishikori #5 5-7 7-6(5) 7-6(5) Sam Querrey #41 Match data Feb 14, 2015* SF Memphis ATP 250 Hard
Kei Nishikori #11 6-4 5-7 6-4 Sam Querrey #63 Match data Jul 31, 2014* R32 Washington Open ATP 500 Hard
Sam Querrey #22 2-6 6-1 6-4 Kei Nishikori #15 Match data Oct 10, 2012* R32 Shanghai Masters Masters 1000 Hard
Sam Querrey #35 6-2 6-3 Kei Nishikori #17 Match data Aug 9, 2012* R32 Canadian Open Masters 1000 Hard
Sam Querrey #26 6-3 6-4 Kei Nishikori #60 Match data Jun 8, 2011* R64 Queen's Club Championships ATP 250 Grass
Kei Nishikori #244 4-6 6-2 7-6(7) Sam Querrey #62 Match data Feb 16, 2008* SF Delray Beach Open 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
Kei Nishikori #481 #4 6,385 2,275 436 232 65.3% 0 0 0 6 6 12
Sam Querrey #529 #11 2,595 2,038 372 316 54.1% 0 0 0 2 8 10

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 Sam Querrey
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 2006 6–11 35.3% #130 1,541 0 0
19 2009 3–6 33.3% #418 1,723 0 1 2007 19–22 46.3% #63 1,637 0 0
20 2010 3–9 25.0% #98 1,735 0 1 2008 28–24 53.8% #39 1,778 0 1
21 2011 32–22 59.3% #25 1,923 0 1 2009 39–22 63.9% #25 1,900 0 2
22 2012 35–18 66.0% #19 2,007 0 2 2010 35–21 62.5% #18 1,872 0 6
23 2013 34–19 64.2% #17 1,946 0 3 2011 12–13 48.0% #93 1,817 0 6
24 2014 52–15 77.6% #5 2,211 0 7 2012 37–24 60.7% #22 2,005 0 7
25 2015 51–17 75.0% #8 2,153 0 10 2013 25–21 54.3% #46 1,875 0 7
26 2016 57–21 73.1% #5 2,183 0 11 2014 26–20 56.5% #35 1,896 0 7
27 2017 30–14 68.2% #22 2,080 0 11 2015 20–24 45.5% #59 1,812 0 7
28 2018 43–21 67.2% #9 2,107 0 11 2016 28–23 54.9% #31 1,797 0 8
29 2019 29–14 67.4% #13 2,002 0 12 2017 35–20 63.6% #13 1,944 0 10
30 2020 2–4 33.3% #41 1,912 0 12 2018 21–22 48.8% #51 1,823 0 10
31 2021 27–16 62.8% #47 1,978 0 12 2019 24–17 58.5% #44 1,898 0 10
32 — — — — — — — 2020 3–6 33.3% #53 1,818 0 10
33 2023 2–1 66.7% #352 1,968 0 12 2021 10–16 38.5% #108 1,689 0 10
34 2024 7–9 43.8% #106 1,871 0 12 2022 4–10 28.6% #329 1,644 0 10
35 2025 9–9 50.0% #156 1,814 0 12 — — — — — — —
36 2026 1–1 50.0% #481 1,770 0 12 — — — — — — —

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 Sam Querrey
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 3 5 8 37.5% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 2008 14 7 21 66.7% 0 1 1 0.0% 2 3 5 40.0% — — — — 2006 5 10 15 33.3% — — — — 1 1 2 50.0% — — — —
19 2009 3 6 9 33.3% — — — — — — — — — — — — 2007 18 14 32 56.3% 1 5 6 16.7% 0 2 2 0.0% 0 1 1 0.0%
20 2010 2 5 7 28.6% 1 1 2 50.0% 0 3 3 0.0% — — — — 2008 23 16 39 59.0% 4 4 8 50.0% 1 3 4 25.0% 0 1 1 0.0%
21 2011 22 14 36 61.1% 7 5 12 58.3% 3 3 6 50.0% — — — — 2009 30 14 44 68.2% 1 4 5 20.0% 8 4 12 66.7% — — — —
22 2012 21 11 32 65.6% 7 4 11 63.6% 7 3 10 70.0% — — — — 2010 19 14 33 57.6% 7 5 12 58.3% 9 2 11 81.8% — — — —
23 2013 24 13 37 64.9% 8 4 12 66.7% 2 2 4 50.0% — — — — 2011 8 8 16 50.0% 2 4 6 33.3% 2 1 3 66.7% — — — —
24 2014 37 11 48 77.1% 10 2 12 83.3% 5 2 7 71.4% — — — — 2012 28 16 44 63.6% 2 4 6 33.3% 7 4 11 63.6% — — — —
25 2015 33 12 45 73.3% 14 3 17 82.4% 4 2 6 66.7% — — — — 2013 21 14 35 60.0% 3 4 7 42.9% 1 3 4 25.0% — — — —
26 2016 40 15 55 72.7% 13 4 17 76.5% 4 2 6 66.7% — — — — 2014 16 14 30 53.3% 4 3 7 57.1% 6 3 9 66.7% — — — —
27 2017 15 6 21 71.4% 12 6 18 66.7% 3 2 5 60.0% — — — — 2015 8 15 23 34.8% 6 5 11 54.5% 6 4 10 60.0% — — — —
28 2018 27 14 41 65.9% 11 5 16 68.8% 5 2 7 71.4% — — — — 2016 16 14 30 53.3% 4 5 9 44.4% 8 4 12 66.7% — — — —
29 2019 15 8 23 65.2% 10 5 15 66.7% 4 1 5 80.0% — — — — 2017 23 13 36 63.9% 5 4 9 55.6% 7 3 10 70.0% — — — —
30 2020 — — — — 2 4 6 33.3% — — — — — — — — 2018 16 16 32 50.0% 1 4 5 20.0% 4 2 6 66.7% — — — —
31 2021 17 10 27 63.0% 8 4 12 66.7% 2 2 4 50.0% — — — — 2019 13 14 27 48.1% 3 1 4 75.0% 8 2 10 80.0% — — — —
32 — — — — — — — — — — — — — — — — — 2020 3 4 7 42.9% 0 2 2 0.0% — — — — — — — —
33 2023 2 1 3 66.7% — — — — — — — — — — — — 2021 2 9 11 18.2% 0 2 2 0.0% 8 5 13 61.5% — — — —
34 2024 6 6 12 50.0% 1 2 3 33.3% 0 1 1 0.0% — — — — 2022 1 5 6 16.7% 1 1 2 50.0% 2 4 6 33.3% — — — —
35 2025 6 6 12 50.0% 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
36 2026 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 288 151 439 65.6% 107 53 160 66.9% 41 28 69 59.4% — — — — — 250 210 460 54.3% 44 57 101 43.6% 78 47 125 62.4% 0 2 2 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 643/668 of Kei Nishikori's and 684/688 of Sam Querrey'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 Sam Querrey
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% 2006 17/17 11.4 3.2 57.2% 75.9% 49.8% 62.8% 42.9% 64.6% 34.0%
19 2009 9/9 2.8 3.1 53.7% 64.6% 49.4% 39.4% 45.3% 57.3% 37.7% 2007 41/41 12.4 3.2 56.6% 79.2% 48.3% 59.9% 39.4% 65.8% 33.9%
20 2010 12/12 3.1 4.0 60.3% 64.3% 43.5% 45.8% 23.0% 56.4% 33.0% 2008 51/52 10.2 3.2 59.1% 74.3% 49.1% 61.1% 41.2% 64.2% 35.5%
21 2011 54/54 2.5 2.9 60.7% 68.5% 52.4% 59.5% 39.7% 62.0% 38.2% 2009 61/61 11.8 3.0 59.4% 80.0% 53.4% 60.4% 44.4% 69.2% 36.2%
22 2012 48/53 2.4 2.6 62.6% 70.0% 53.6% 55.2% 39.9% 63.6% 41.4% 2010 56/56 12.3 3.4 61.5% 79.4% 50.9% 64.4% 45.2% 68.3% 35.1%
23 2013 53/53 2.6 2.8 62.3% 68.9% 52.2% 55.7% 47.2% 62.6% 40.6% 2011 25/25 8.9 3.2 59.6% 74.8% 51.2% 66.6% 31.2% 65.2% 34.4%
24 2014 66/67 4.3 2.8 60.6% 73.4% 53.9% 63.1% 42.6% 65.6% 39.9% 2012 61/61 11.6 3.9 57.6% 80.5% 51.1% 60.0% 42.0% 68.1% 36.0%
25 2015 66/68 4.6 2.5 59.6% 74.7% 54.5% 62.3% 44.7% 66.6% 39.3% 2013 45/46 12.8 3.6 59.6% 78.6% 48.7% 57.6% 35.7% 66.5% 33.6%
26 2016 71/78 3.4 2.4 61.0% 72.3% 53.9% 64.1% 47.7% 65.1% 40.2% 2014 45/46 14.4 2.8 60.5% 79.4% 51.9% 73.7% 41.8% 68.7% 33.8%
27 2017 43/44 3.3 2.3 62.3% 71.9% 53.3% 64.2% 45.5% 64.9% 40.7% 2015 44/44 13.8 3.6 59.5% 78.7% 54.4% 64.0% 37.1% 68.9% 33.7%
28 2018 64/64 3.6 2.3 60.0% 71.3% 55.9% 60.0% 44.8% 65.2% 37.8% 2016 51/51 13.1 3.1 58.6% 79.9% 52.3% 59.4% 39.6% 68.5% 33.4%
29 2019 43/43 3.1 2.8 63.6% 70.1% 54.2% 51.2% 45.0% 64.3% 40.9% 2017 55/55 13.5 3.2 57.1% 79.8% 51.8% 62.5% 49.5% 67.9% 37.0%
30 2020 6/6 1.2 2.5 63.5% 62.2% 50.7% 57.8% 31.4% 58.0% 37.8% 2018 43/43 14.3 3.7 58.2% 81.9% 51.7% 60.0% 41.2% 69.3% 34.2%
31 2021 37/43 2.5 2.0 64.2% 65.6% 55.3% 57.2% 45.2% 62.0% 38.5% 2019 41/41 16.8 4.0 62.1% 81.2% 49.4% 60.5% 33.2% 69.1% 33.8%
32 — —/— — — — — — — — — — 2020 9/9 16.8 3.6 60.3% 78.2% 50.8% 33.4% 31.7% 67.5% 31.1%
33 2023 3/3 1.7 1.3 67.5% 73.8% 53.6% 52.8% 16.7% 67.2% 29.9% 2021 25/26 15.2 5.2 56.8% 81.9% 47.7% 52.4% 33.2% 67.3% 30.3%
34 2024 15/16 2.1 1.7 66.6% 66.7% 55.0% 58.6% 39.7% 62.7% 36.1% 2022 14/14 12.4 4.7 58.3% 78.6% 46.1% 56.3% 26.6% 64.8% 29.4%
35 2025 18/18 3.2 1.9 65.6% 68.6% 47.6% 53.2% 35.9% 61.9% 35.2% — —/— — — — — — — — — —
36 2026 2/2 2.0 1.0 60.0% 72.0% 55.5% 0.0% 11.0% 64.0% 32.0% — —/— — — — — — — — — —
Career — 643/668 3.3 2.6 61.5% 70.5% 53.3% 58.6% 43.3% 63.8% 39.1% — 684/688 12.9 3.5 59.0% 79.2% 50.9% 61.3% 40.2% 67.6% 34.5%

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 Kei Nishikori Sam Querrey
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 2005 1490 99.8 — — — — — — — — — — — — —
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%) — +0.07 2006 1542 124.2 +1.62 -2.01 0.962 49.2% -13 — — 46.7% -0.31 1–7 (13%) 2–4 (33%) — -0.03
19 2009 1724 129.5 -3.16 +1.29 0.884 47.6% +12 — — 35.3% -1.06 — 1–0 — -0.98 2007 1637 141.5 +2.16 -1.29 0.990 50.0% +50 -158 — 47.6% -0.08 6–8 (43%) 9–10 (47%) — +0.09
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%) — -1.08 2008 1779 145.5 +1.02 -0.70 0.993 50.1% +29 -209 -254 51.5% +0.04 11–8 (58%) 9–8 (53%) — +0.64
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%) — +0.32 2009 1900 149.0 +4.79 +0.01 1.176 52.3% +27 -361 -223 62.0% +0.61 8–11 (42%) 13–12 (52%) — +1.27
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%) — +1.94 2010 1873 152.2 +3.95 -0.55 1.108 51.9% +5 -250 +9 58.4% +0.58 13–11 (54%) 14–17 (45%) — +2.65
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%) — +3.21 2011 1817 141.7 +1.37 -1.06 0.989 49.9% +19 -173 +81 46.7% -0.10 3–4 (43%) 4–7 (36%) — +0.50
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%) — -0.99 2012 2006 157.4 +4.09 +0.39 1.129 52.1% +3 -305 -92 57.8% +0.40 12–10 (55%) 20–13 (61%) — -0.61
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%) — +2.30 2013 1875 153.6 +2.58 -2.07 1.003 50.0% +71 -164 -51 50.0% -0.07 9–8 (53%) 15–15 (50%) — +0.18
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%) — -1.29 2014 1896 144.5 +3.69 -2.25 1.080 51.0% +17 -178 -23 56.4% +0.33 6–9 (40%) 12–12 (50%) — +0.27
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%) — -0.06 2015 1812 152.4 +3.52 -1.09 1.082 51.0% -39 -68 +110 46.7% -0.02 7–9 (44%) 13–18 (42%) — -2.68
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%) — -1.99 2016 1797 152.8 +4.13 -1.97 1.060 50.9% -38 -84 +223 56.0% +0.27 8–9 (47%) 18–16 (53%) — +1.80
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%) — +1.02 2017 1945 161.8 +4.11 +1.06 1.153 52.3% -43 -192 +131 59.1% +0.70 11–6 (65%) 14–13 (52%) — +1.92
30 2020 1913 109.6 -1.35 -0.42 0.900 47.5% — +89 — 42.1% -0.95 1–2 (33%) 2–1 (67%) — +0.14 2018 1823 152.3 +4.08 -0.93 1.114 51.7% -5 -127 +252 54.1% +0.58 6–11 (35%) 9–20 (31%) — +1.23
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%) — -2.26 2019 1898 146.9 +4.59 -1.49 1.095 51.3% -82 -158 +201 55.6% +0.20 5–5 (50%) 18–15 (55%) — -0.90
32 — — — — — — — — — — — — — — — — 2020 1818 128.8 +2.33 -0.47 0.956 48.3% -33 — — 37.0% -0.67 1–1 4–3 (57%) — -0.60
33 2023 1968 114.7 +1.39 +0.98 0.912 49.4% +49 — — 66.7% -0.17 — 3–0 (100%) — -0.03 2021 1690 124.0 +2.41 -3.84 0.926 48.7% -54 — +303 39.1% -0.53 3–5 (38%) 8–8 (50%) — -0.24
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%) — -0.17 2022 1645 117.4 -0.20 -3.77 0.835 47.4% -72 — +250 28.6% -0.97 2–1 (67%) 2–7 (22%) — +0.03
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%) — -1.30 — — — — — — — — — — — — — — — —
36 2026 1771 106.9 +1.54 -0.54 0.889 47.0% — — — 40.0% -0.60 1–0 0–1 — -0.11 — — — — — — — — — — — — — — — —
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 — 2039 155.6 +3.33 -1.02 1.064 51.0% 0 -181 +77 53.2% +0.22 112–123 (48%) 184–198 (48%) 96.0 +0.81

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.