Kei Nishikori

Where the 1751.5 rating comes from

From 633 matches played between 16 July 2007 and 28 September 2026, 592 of them rated, and from them alone. Every line below was written at computation time: nothing is recomputed to show this page.

How to read this

On the right: the change this match produced, then the value before → after. A line's arrival value is the next line's starting value, down to the starting rating given to every newcomer. A ±0.0 is a counted match that did not move the rating, a walkover for instance.

633 matches, from the most recent to the first

beaten by Frances Tiafoe 0–2
28/09/26 · ATP 500 2026 · First round · detail
−7.71759.2 → 1751.5
beaten by Marco Trungelliti 1–2
12/08/26 · ATP 1000 2026 · Qualifying — Qualifying competition · detail
−19.11778.3 → 1759.2
10/08/26 · ATP 1000 2026 · Qualifying — First round · detail
+7.41770.9 → 1778.3
beaten by Michael Zheng 0–2
03/08/26 · ATP 1000 2026 · Qualifying — Qualifying competition · detail
−19.01789.9 → 1770.9
beaten by Rafael Jódar 0–2
27/07/26 · ATP 500 2026 · Second round · detail
−11.81801.8 → 1789.9
beat Juncheng Shang 2–1
27/07/26 · ATP 500 2026 · First round · detail
+10.01791.8 → 1801.8
beat Karen Khachanov 2–1
30/12/25 · ATP 250 2025 · Second round · detail
+12.81778.9 → 1791.8
beat Juncheng Shang 1–0
30/12/25 · ATP 250 2025 · Semifinals · retirement · detail
±0.01778.9 → 1778.9
beat Denis Shapovalov 2–0
30/12/25 · ATP 250 2025 · First round · detail
+11.51767.4 → 1778.9
beat Cameron Norrie 2–1
30/12/25 · ATP 250 2025 · Quarterfinals · detail
+12.11755.3 → 1767.4
beaten by Alexandre Müller 1–2
30/12/25 · ATP 250 2025 · Final · detail
−15.31770.7 → 1755.3
beaten by Camilo Ugo Carabelli 0–2
06/08/25 · ATP 1000 2025 · First round · detail
−18.11788.8 → 1770.7
beat Learner Tien 2–1
19/05/25 · ATP 250 2025 · First round · detail
+7.51781.2 → 1788.8
beaten by Karen Khachanov 1–1
19/05/25 · ATP 250 2025 · Second round · retirement · detail
±0.01781.2 → 1781.2
beaten by Denis Shapovalov 0–2
24/04/25 · ATP 1000 2025 · Second round · detail
−10.71791.9 → 1781.2
beat Aleksandar Vukic 2–1
23/04/25 · ATP 1000 2025 · First round · detail
+5.91786.0 → 1791.9
beat Mitchell Krueger 2–0
31/03/25 · ATP 250 2025 · First round · detail
+4.11781.9 → 1786.0
beaten by Christopher Eubanks 0–1
31/03/25 · ATP 250 2025 · Second round · retirement · detail
±0.01781.9 → 1781.9
beaten by Ugo Humbert 0–2
06/03/25 · ATP 1000 2025 · Second round · detail
−9.81791.7 → 1781.9
beat Jaume Munar 2–1
05/03/25 · ATP 1000 2025 · First round · detail
+6.71785.0 → 1791.7
beaten by Mackenzie McDonald 1–2
10/02/25 · ATP 250 2025 · First round · detail
−17.71802.7 → 1785.0
beaten by Tomáš Macháč 0–2
03/02/25 · ATP 500 2025 · First round · detail
−10.81813.5 → 1802.7
beaten by Tommy Paul 1–3
14/01/25 · ATP Grand Slam 2025 · Second round · detail
−10.31823.8 → 1813.5
beat Thiago Monteiro 3–2
13/01/25 · ATP Grand Slam 2025 · First round · detail
+5.71818.1 → 1823.8
beaten by Jack Draper 0–2
21/10/24 · ATP 500 2024 · First round · detail
−9.71827.8 → 1818.1
beaten by Stefanos Tsitsipas 0–2
03/10/24 · ATP 1000 2024 · Second round · detail
−11.41839.2 → 1827.8
beat Mariano Navone 2–1
02/10/24 · ATP 1000 2024 · First round · detail
+5.71833.5 → 1839.2
beat Marin Čilić 2–1
23/09/24 · ATP 500 2024 · First round · detail
+11.71821.9 → 1833.5
beat Jordan Thompson 2–0
23/09/24 · ATP 500 2024 · Second round · detail
+12.41809.5 → 1821.9
beaten by Holger Rune 1–2
23/09/24 · ATP 500 2024 · Quarterfinals · detail
−10.91820.4 → 1809.5
beaten by Juncheng Shang 0–2
16/09/24 · ATP 250 2024 · First round · detail
−14.61835.0 → 1820.4
05/08/24 · ATP 1000 2024 · Second round · detail
+15.01820.1 → 1835.0
beat Nuno Borges 2–0
05/08/24 · ATP 1000 2024 · Third round · detail
+7.01813.1 → 1820.1
beaten by Matteo Arnaldi 0–2
05/08/24 · ATP 1000 2024 · Quarterfinals · detail
−15.81828.9 → 1813.1
beat Alex Michelsen 2–1
05/08/24 · ATP 1000 2024 · First round · detail
+6.81822.1 → 1828.9
beaten by Arthur Rinderknech 2–3
01/07/24 · ATP Grand Slam 2024 · First round · detail
−19.21841.4 → 1822.1
beaten by Ben Shelton 0–2
28/05/24 · ATP Grand Slam 2024 · Second round · retirement · detail
±0.01841.4 → 1841.4
beat Gabriel Diallo 3–2
27/05/24 · ATP Grand Slam 2024 · First round · detail
+2.61838.7 → 1841.4
beaten by Sebastian Ofner 0–2
20/03/24 · ATP 1000 2024 · First round · detail
−18.61857.3 → 1838.7
beaten by Taylor Harry Fritz 0–2
24/07/23 · ATP 250 2023 · Quarterfinals · detail
−12.61869.9 → 1857.3
beat Juncheng Shang 2–0
24/07/23 · ATP 250 2023 · Second round · detail
+2.51867.4 → 1869.9
beat Jordan Thompson 2–0
24/07/23 · ATP 250 2023 · First round · detail
+5.61861.8 → 1867.4
beaten by Dan Evans 1–2
07/10/21 · ATP 1000 2021 · Second round · detail
−16.01877.8 → 1861.8
beat Joao Sousa 2–1
06/10/21 · ATP 1000 2021 · First round · detail
+3.01874.7 → 1877.8
beaten by Novak Djokovic 1–3
01/09/21 · ATP Grand Slam 2021 · Third round · detail
−2.61877.4 → 1874.7
31/08/21 · ATP Grand Slam 2021 · Second round · detail
+6.91870.5 → 1877.4
beat Salvatore Caruso 3–1
30/08/21 · ATP Grand Slam 2021 · First round · detail
+3.01867.4 → 1870.5
09/08/21 · ATP 1000 2021 · First round · detail
+6.01861.5 → 1867.4
beaten by Hubert Hurkacz
09/08/21 · ATP 1000 2021 · Second round · walkover · detail
±0.01861.5 → 1861.5
beat Sam Querrey 2–0
02/08/21 · ATP 500 2021 · First round · detail
+5.91855.6 → 1861.5

Only the matches the source publishes appear; what is missing is listed. The source gives the day, not the hour: two matches on the same day are ordered by a reproducible rule, which is not necessarily the real order.