Arianne Hartono

Where the 1527.5 rating comes from

From 55 matches played between 10 June 2019 and 3 November 2025, 54 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.

55 matches, from the most recent to the first

beat Mei Yamaguchi 2–0
03/11/25 · WTA Grand Slam 2025 · First round · detail
+11.61515.9 → 1527.5
beaten by Arantxa Rus 0–2
03/11/25 · WTA Grand Slam 2025 · Second round · detail
−10.81526.8 → 1515.9
beat Sofya Lansere 2–0
27/10/25 · WTA 250 2025 · Qualifying — First round · detail
+8.81518.0 → 1526.8
27/10/25 · WTA 250 2025 · Qualifying — Qualifying competition · detail
+8.41509.6 → 1518.0
beaten by Joanna Garland 0–2
27/10/25 · WTA 250 2025 · First round · detail
−11.31520.8 → 1509.6
beaten by Solana Sierra 0–2
08/09/25 · WTA 250 2025 · First round · detail
−11.51532.4 → 1520.8
beaten by Elisabetta Cocciaretto 0–2
09/06/25 · WTA 250 2025 · First round · detail
−9.71542.1 → 1532.4
beaten by Jil Belen Teichmann 0–2
27/01/25 · WTA 250 2025 · Qualifying — First round · detail
−9.31551.4 → 1542.1
beaten by Anna Bondár 1–2
28/10/24 · WTA 250 2024 · First round · detail
−13.71565.1 → 1551.4
beat Ren Yufei 2–1
21/10/24 · WTA 250 2024 · Qualifying — First round · detail
+8.41556.7 → 1565.1
beaten by Jessika Ponchet 0–2
21/10/24 · WTA 250 2024 · Qualifying — Qualifying competition · detail
−15.41572.1 → 1556.7
beat Zeynep Sönmez 2–1
14/10/24 · WTA 250 2024 · Qualifying — First round · detail
+13.51558.7 → 1572.1
beaten by Aoi Ito 1–2
14/10/24 · WTA 250 2024 · Qualifying — Qualifying competition · detail
−12.71571.4 → 1558.7
beaten by Sara Sorribes Tormo 0–2
23/09/24 · WTA 1000 2024 · Qualifying — First round · detail
−8.41579.8 → 1571.4
beat Maryna Kolb 2–0
16/09/24 · WTA 250 2024 · Qualifying — First round · detail
+9.61570.2 → 1579.8
beat Lara Salden 2–1
16/09/24 · WTA 250 2024 · Qualifying — Qualifying competition · retirement · detail
±0.01570.2 → 1570.2
beat Moyuka Uchijima 2–0
16/09/24 · WTA 250 2024 · First round · detail
+10.31559.9 → 1570.2
beat Mai Hontama 2–1
16/09/24 · WTA 250 2024 · Quarterfinals · detail
+13.31546.6 → 1559.9
beaten by Laura Siegemund 0–2
16/09/24 · WTA 250 2024 · Semifinals · detail
−7.51554.0 → 1546.6
beat Gao Xinyu 2–1
16/09/24 · WTA 250 2024 · Second round · detail
+8.01546.1 → 1554.0
beaten by Shelby Rogers 0–2
26/02/24 · WTA 250 2024 · Qualifying — First round · detail
−6.31552.3 → 1546.1
29/01/24 · WTA 250 2024 · Qualifying — First round · detail
+10.61541.8 → 1552.3
beat Daria Saville 2–0
29/01/24 · WTA 250 2024 · Qualifying — Qualifying competition · detail
+16.91524.9 → 1541.8
beaten by Tatjana Maria 0–2
29/01/24 · WTA 250 2024 · First round · detail
−8.91533.8 → 1524.9
beaten by Vera Zvonareva 0–2
16/10/23 · WTA 250 2023 · First round · detail
−7.11540.8 → 1533.8
09/10/23 · WTA 250 2023 · Qualifying — Qualifying competition · detail
+8.91531.9 → 1540.8
beat Eri Hozumi 2–0
09/10/23 · WTA 250 2023 · Qualifying — First round · detail
+8.71523.2 → 1531.9
beaten by Yuan Yue 0–2
09/10/23 · WTA 250 2023 · First round · detail
−16.41539.6 → 1523.2
beat Quinn Gleason 2–0
25/09/23 · WTA 250 2023 · Qualifying — First round · detail
+9.61530.1 → 1539.6
beaten by Jil Belen Teichmann 1–2
25/09/23 · WTA 250 2023 · Qualifying — Qualifying competition · detail
−10.01540.1 → 1530.1
beat Sofya Lansere 2–1
11/09/23 · WTA 250 2023 · Qualifying — First round · detail
+7.41532.6 → 1540.1
11/09/23 · WTA 250 2023 · Qualifying — Qualifying competition · detail
+11.21521.4 → 1532.6
beat Panna Udvardy 2–0
11/09/23 · WTA 250 2023 · Second round · detail
+7.41514.0 → 1521.4
beat Misaki Doi 2–1
11/09/23 · WTA 250 2023 · First round · detail
+11.81502.2 → 1514.0
beaten by Mai Hontama 1–2
11/09/23 · WTA 250 2023 · Quarterfinals · detail
−12.81515.1 → 1502.2
beaten by Shelby Rogers 0–2
16/01/23 · WTA Grand Slam 2023 · First round · detail
−4.61519.6 → 1515.1
beat Taylah Preston 2–1
24/10/22 · WTA 250 2022 · First round · detail
+12.01507.6 → 1519.6
beaten by Aryna Sabalenka 0–2
24/10/22 · WTA 250 2022 · Second round · detail
−2.51510.1 → 1507.6
beaten by Magda Linette 0–2
19/09/22 · WTA 250 2022 · First round · detail
−5.71515.8 → 1510.1
beaten by Katie Swan 0–2
12/09/22 · WTA 250 2022 · First round · detail
−13.21529.0 → 1515.8
beaten by Harriet Dart 0–2
08/08/22 · WTA 1000 2022 · Qualifying — First round · detail
−9.01537.9 → 1529.0
beat Yuki Naito 2–0
25/07/22 · WTA 250 2022 · Qualifying — First round · detail
+9.61528.3 → 1537.9
beat Laura Pigossi 2–0
25/07/22 · WTA 250 2022 · Qualifying — Qualifying competition · detail
+10.71517.6 → 1528.3
beaten by Viktorija Golubic 1–2
25/07/22 · WTA 250 2022 · First round · detail
−7.61525.2 → 1517.6
beat Sinja Kraus 2–0
18/07/22 · WTA 250 2022 · Qualifying — First round · detail
+11.11514.1 → 1525.2
beaten by Nao Hibino 1–2
18/07/22 · WTA 250 2022 · Qualifying — Qualifying competition · detail
−27.21541.3 → 1514.1
beat Taylah Preston 2–1
06/06/22 · WTA 250 2022 · First round · detail
+23.31518.0 → 1541.3
beaten by Aryna Sabalenka 0–2
06/06/22 · WTA 250 2022 · Second round · detail
−4.71522.7 → 1518.0
beaten by Anna Bondár 0–2
04/04/22 · WTA 500 2022 · First round · detail
−25.51548.2 → 1522.7
beaten by Amanda Anisimova 1–2
17/01/22 · WTA Grand Slam 2022 · First round · detail
−9.41557.6 → 1548.2

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.