H2H data updated: 2026-09-06 00:00 UTC

Kei Nishikori vs Igor Sijsling H2H: 1-0

Kei Nishikori holds a 1–0 lead over Igor Sijsling in their ATP head-to-head. Across 1 main-draw meeting, Kei Nishikori leads 1–0 on grass. Most recently, Kei Nishikori won the 2012 Newport round of 32 6-4 6-4.

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Kei Nishikori
Japan Age 36 Right-Handed 178 cm / 5'10"
H2H
1 – 0
1 main-draw meetings
Igor Sijsling
NED Age 39 Right-Handed 191 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kei Nishikori #18 6-4 6-4 Igor Sijsling #110 Match data Jul 12, 2012* R32 Newport ATP 250 Grass

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
Igor Sijsling #854 #52 910 1,828 47 86 35.3% 0 0 0 0 0 0

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 Igor Sijsling
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 0–1 0.0% #302 1,491 0 0
19 2009 3–6 33.3% #418 1,723 0 1 — — — — — — —
20 2010 3–9 25.0% #98 1,735 0 1 2008 0–1 0.0% #525 1,464 0 0
21 2011 32–22 59.3% #25 1,923 0 1 — — — — — — —
22 2012 35–18 66.0% #19 2,007 0 2 2010 3–3 50.0% #126 1,579 0 0
23 2013 34–19 64.2% #17 1,946 0 3 2011 2–3 40.0% #200 1,610 0 0
24 2014 52–15 77.6% #5 2,211 0 7 2012 8–10 44.4% #68 1,758 0 0
25 2015 51–17 75.0% #8 2,153 0 10 2013 18–25 41.9% #70 1,747 0 0
26 2016 57–21 73.1% #5 2,183 0 11 2014 9–26 25.7% #84 1,627 0 0
27 2017 30–14 68.2% #22 2,080 0 11 2015 3–10 23.1% #145 1,691 0 0
28 2018 43–21 67.2% #9 2,107 0 11 2016 4–7 36.4% #177 1,678 0 0
29 2019 29–14 67.4% #13 2,002 0 12 — — — — — — —
30 2020 2–4 33.3% #41 1,912 0 12 — — — — — — —
31 2021 27–16 62.8% #47 1,978 0 12 — — — — — — —
33 2023 2–1 66.7% #352 1,968 0 12 — — — — — — —
34 2024 7–9 43.8% #106 1,871 0 12 — — — — — — —
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 Igor Sijsling
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% 2006 — — — — 0 1 1 0.0% — — — —
19 2009 3 6 9 33.3% — — — — — — — — — — — — — — — — — — — — —
20 2010 2 5 7 28.6% 1 1 2 50.0% 0 3 3 0.0% 2008 — — — — 0 1 1 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% 2010 2 2 4 50.0% — — — — 1 1 2 50.0%
23 2013 24 13 37 64.9% 8 4 12 66.7% 2 2 4 50.0% 2011 2 2 4 50.0% — — — — 0 1 1 0.0%
24 2014 37 11 48 77.1% 10 2 12 83.3% 5 2 7 71.4% 2012 6 7 13 46.2% 0 1 1 0.0% 2 2 4 50.0%
25 2015 33 12 45 73.3% 14 3 17 82.4% 4 2 6 66.7% 2013 8 18 26 30.8% 4 4 8 50.0% 6 3 9 66.7%
26 2016 40 15 55 72.7% 13 4 17 76.5% 4 2 6 66.7% 2014 6 13 19 31.6% 3 10 13 23.1% 0 3 3 0.0%
27 2017 15 6 21 71.4% 12 6 18 66.7% 3 2 5 60.0% 2015 3 8 11 27.3% 0 1 1 0.0% 0 1 1 0.0%
28 2018 27 14 41 65.9% 11 5 16 68.8% 5 2 7 71.4% 2016 0 1 1 0.0% 3 4 7 42.9% 1 2 3 33.3%
29 2019 15 8 23 65.2% 10 5 15 66.7% 4 1 5 80.0% — — — — — — — — — — — — —
30 2020 — — — — 2 4 6 33.3% — — — — — — — — — — — — — — — — —
31 2021 17 10 27 63.0% 8 4 12 66.7% 2 2 4 50.0% — — — — — — — — — — — — —
33 2023 2 1 3 66.7% — — — — — — — — — — — — — — — — — — — — —
34 2024 6 6 12 50.0% 1 2 3 33.3% 0 1 1 0.0% — — — — — — — — — — — — —
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% — 27 51 78 34.6% 10 22 32 31.2% 10 13 23 43.5%

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 133/133 of Igor Sijsling'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 Igor Sijsling
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 1/1 8.0 6.0 50.0% 69.8% 47.2% 60.0% 9.1% 58.5% 33.6%
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% 2008 1/1 2.0 2.0 47.7% 61.9% 34.8% 0.0% — 47.7% 22.0%
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% 2010 6/6 6.7 1.8 64.3% 72.7% 52.7% 65.6% 32.4% 65.7% 31.9%
23 2013 53/53 2.6 2.8 62.3% 68.9% 52.2% 55.7% 47.2% 62.6% 40.6% 2011 5/5 9.0 3.2 58.8% 83.0% 49.4% 65.4% 29.0% 69.5% 32.0%
24 2014 66/67 4.3 2.8 60.6% 73.4% 53.9% 63.1% 42.6% 65.6% 39.9% 2012 18/18 8.3 2.1 60.5% 74.9% 49.8% 55.4% 48.8% 64.9% 33.0%
25 2015 66/68 4.6 2.5 59.6% 74.7% 54.5% 62.3% 44.7% 66.6% 39.3% 2013 43/43 8.9 2.0 57.7% 74.9% 50.5% 57.4% 41.7% 64.6% 34.1%
26 2016 71/78 3.4 2.4 61.0% 72.3% 53.9% 64.1% 47.7% 65.1% 40.2% 2014 35/35 6.3 2.6 59.0% 73.0% 48.5% 55.6% 43.1% 62.7% 35.3%
27 2017 43/44 3.3 2.3 62.3% 71.9% 53.3% 64.2% 45.5% 64.9% 40.7% 2015 13/13 5.5 3.8 58.4% 68.3% 46.1% 53.3% 36.5% 58.8% 32.1%
28 2018 64/64 3.6 2.3 60.0% 71.3% 55.9% 60.0% 44.8% 65.2% 37.8% 2016 11/11 3.2 2.7 57.2% 70.5% 49.2% 45.5% 38.4% 61.2% 40.0%
29 2019 43/43 3.1 2.8 63.6% 70.1% 54.2% 51.2% 45.0% 64.3% 40.9% — —/— — — — — — — — — —
30 2020 6/6 1.2 2.5 63.5% 62.2% 50.7% 57.8% 31.4% 58.0% 37.8% — —/— — — — — — — — — —
31 2021 37/43 2.5 2.0 64.2% 65.6% 55.3% 57.2% 45.2% 62.0% 38.5% — —/— — — — — — — — — —
33 2023 3/3 1.7 1.3 67.5% 73.8% 53.6% 52.8% 16.7% 67.2% 29.9% — —/— — — — — — — — — —
34 2024 15/16 2.1 1.7 66.6% 66.7% 55.0% 58.6% 39.7% 62.7% 36.1% — —/— — — — — — — — — —
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% — 133/133 7.2 2.5 58.7% 73.5% 49.3% 55.6% 40.8% 63.3% 34.3%

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 Kei Nishikori Igor Sijsling
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 2006 1492 100.5 -3.93 +0.57 0.811 46.0% — — — 33.3% -1.67 0–1 1–0 — -0.11
19 2009 1724 129.5 -3.16 +1.29 0.884 47.6% +12 — — 35.3% -1.06 — 1–0 — -0.98 2007 1482 100.7 — — — — — — — — — — — — —
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 2008 1465 96.9 -3.86 +0.01 0.420 35.3% — — — 0.0% -4.00 — — — +0.13
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 2009 1481 106.3 — — — — — — — — — — — — —
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 2010 1580 114.9 +0.67 -1.49 0.929 48.9% +42 — — 46.7% -0.40 2–1 (67%) 2–3 (40%) 100.7 +0.24
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 2011 1611 110.3 +1.30 -1.14 1.050 50.2% -5 — — 41.7% -0.42 0–1 — — +0.26
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 2012 1759 131.7 +1.29 -1.52 0.940 49.3% -7 — -128 48.8% -0.26 0–3 (0%) 6–2 (75%) 101.3 -0.37
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 2013 1747 140.6 +0.68 -2.09 0.962 49.4% -44 -118 -16 49.0% -0.16 4–11 (27%) 9–10 (47%) 97.7 -0.21
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 2014 1628 137.5 -0.86 -1.13 0.947 48.9% +1 -3 +39 31.8% -0.58 4–10 (29%) 3–15 (17%) 91.0 +0.31
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 2015 1692 131.6 -2.85 -2.47 0.780 46.1% -59 — — 30.6% -0.97 2–4 (33%) 2–3 (40%) 97.9 +0.23
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 2016 1679 124.4 -2.48 +1.67 1.030 50.4% — +15 +65 40.7% -0.22 0–2 1–4 (20%) — +0.90
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 2017 1634 95.6 — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
33 2023 1968 114.7 +1.39 +0.98 0.912 49.4% +49 — — 66.7% -0.17 — 3–0 (100%) — -0.03 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
36 2026 1771 106.9 +1.37 -0.67 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 — 1828 134.7 -0.30 -1.39 0.935 48.9% -22 -31 -18 40.9% -0.44 12–33 (27%) 24–37 (39%) 90.2 +1.04

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.