Fiona Ferro

Where the 1577.8 rating comes from

From 186 matches played between 19 May 2014 and 21 September 2026, 181 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.

186 matches, from the most recent to the first

beaten by Talia Gibson 0–2
21/09/26 · WTA 500 2026 · First round · detail
−10.31588.1 → 1577.8
beaten by Mirra Andreeva 0–2
25/05/26 · WTA Grand Slam 2026 · First round · detail
−2.61590.7 → 1588.1
beat Elina Avanesyan 2–1
18/05/26 · WTA 250 2026 · Qualifying — Qualifying competition · detail
+14.21576.5 → 1590.7
18/05/26 · WTA 250 2026 · Qualifying — First round · detail
+7.51569.0 → 1576.5
beaten by Jéssica Bouzas Maneiro 1–2
18/05/26 · WTA 250 2026 · Second round · detail
−10.41579.4 → 1569.0
beat Danka Kovinić 2–0
18/05/26 · WTA 250 2026 · First round · detail
+13.21566.2 → 1579.4
beaten by Sorana Cîrstea 1–2
13/04/26 · WTA 250 2026 · First round · detail
−3.71569.8 → 1566.2
beat Laura Pigossi 2–0
02/02/26 · WTA 250 2026 · Qualifying — Qualifying competition · detail
+7.81562.0 → 1569.8
02/02/26 · WTA 250 2026 · Qualifying — First round · detail
+13.91548.1 → 1562.0
beaten by Nikola Bartůňková 1–2
02/02/26 · WTA 250 2026 · Second round · detail
−12.61560.8 → 1548.1
02/02/26 · WTA 250 2026 · First round · detail
+14.31546.5 → 1560.8
beaten by Shuai Zhang 1–2
29/12/25 · WTA 500 2026 · Qualifying — First round · detail
−8.11554.6 → 1546.5
beat Manon Léonard 2–0
14/04/25 · WTA 250 2025 · Qualifying — Qualifying competition · detail
+10.41544.2 → 1554.6
beat Émeline Dartron 2–1
14/04/25 · WTA 250 2025 · Qualifying — First round · detail
+10.11534.1 → 1544.2
14/04/25 · WTA 250 2025 · First round · detail
+19.21514.9 → 1534.1
beaten by Jessika Ponchet 0–2
14/04/25 · WTA 250 2025 · Second round · detail
−13.31528.2 → 1514.9
beaten by Jil Belen Teichmann 0–2
15/07/24 · WTA 250 2024 · Qualifying — Qualifying competition · detail
−9.81538.0 → 1528.2
beat Dalila Spiteri 2–0
15/07/24 · WTA 250 2024 · Qualifying — First round · detail
+8.11529.9 → 1538.0
beaten by Arantxa Rus 0–2
17/06/24 · WTA 500 2024 · Qualifying — First round · detail
−10.31540.2 → 1529.9
beaten by Diane Parry 1–2
27/05/24 · WTA Grand Slam 2024 · First round · detail
−9.81550.0 → 1540.2
beat Erika Andreeva 2–0
20/05/24 · WTA 500 2024 · First round · detail
+13.21536.8 → 1550.0
beaten by Anhelina Kalinina 1–2
20/05/24 · WTA 500 2024 · Second round · detail
−6.21543.0 → 1536.8
beaten by Yuliia Starodubtseva 0–2
06/05/24 · WTA 1000 2024 · Qualifying — First round · detail
−14.51557.4 → 1543.0
beaten by Maria Timofeeva 1–2
22/04/24 · WTA 1000 2024 · Qualifying — First round · detail
−11.11568.5 → 1557.4
beat Timea Babos 2–0
15/04/24 · WTA 250 2024 · Qualifying — Qualifying competition · detail
+11.11557.4 → 1568.5
beat Manon Léonard 2–0
15/04/24 · WTA 250 2024 · Qualifying — First round · detail
+10.41547.0 → 1557.4
beaten by Elina Avanesyan 1–2
15/04/24 · WTA 250 2024 · First round · detail
−8.91555.9 → 1547.0
beaten by McCartney Kessler 1–2
15/01/24 · WTA Grand Slam 2024 · First round · detail
−13.51569.4 → 1555.9
beaten by Victoria Azarenka 0–2
28/08/23 · WTA Grand Slam 2023 · First round · detail
−4.61574.0 → 1569.4
beaten by Diane Parry 1–2
24/07/23 · WTA 250 2023 · First round · detail
−13.21587.1 → 1574.0
beaten by Camila Osorio 0–2
17/07/23 · WTA 250 2023 · First round · detail
−6.81593.9 → 1587.1
beaten by Rebecca Peterson 0–2
29/05/23 · WTA Grand Slam 2023 · First round · detail
−9.91603.8 → 1593.9
beaten by Paula Badosa Gibert 0–2
23/05/22 · WTA Grand Slam 2022 · First round · detail
−3.21607.1 → 1603.8
beaten by Viktorija Golubic 0–2
16/05/22 · WTA 250 2022 · Second round · detail
−10.01617.1 → 1607.1
beat Angelina Gabueva 2–0
16/05/22 · WTA 250 2022 · First round · detail
+3.71613.4 → 1617.1
beaten by Marie Bouzková 0–2
25/04/22 · WTA 1000 2022 · Qualifying — First round · detail
−8.11621.5 → 1613.4
beaten by Elina Svitolina 0–2
17/01/22 · WTA Grand Slam 2022 · First round · detail
−5.61627.2 → 1621.5
beat Michaela Haet 2–0
10/01/22 · WTA 500 2022 · Qualifying — First round · detail
+8.01619.1 → 1627.2
beaten by Elena Gabriela Ruse 0–2
10/01/22 · WTA 500 2022 · Qualifying — Qualifying competition · detail
−8.91628.0 → 1619.1
beaten by Elise Mertens 0–2
10/01/22 · WTA 500 2022 · First round · detail
−5.71633.8 → 1628.0
beaten by Aliona Bolsova Zadoinov 0–2
03/01/22 · WTA 250 2022 · Qualifying — First round · detail
−14.61648.3 → 1633.8
beaten by Aliaksandra Sasnovich 1–2
08/11/21 · WTA 250 2021 · First round · detail
−10.11658.4 → 1648.3
beaten by Irina-Camelia Begu 0–2
06/10/21 · WTA 1000 2021 · First round · detail
−11.01669.4 → 1658.4
20/09/21 · WTA 500 2021 · Qualifying — First round · detail
+4.91664.5 → 1669.4
beat Anna Blinkova 2–0
20/09/21 · WTA 500 2021 · Qualifying — Qualifying competition · detail
+8.91655.6 → 1664.5
beaten by Alison Riske-Amritraj 1–2
20/09/21 · WTA 500 2021 · First round · detail
−10.01665.6 → 1655.6
beaten by Bernarda Pera 0–2
13/09/21 · WTA 250 2021 · First round · detail
−14.41680.0 → 1665.6
beaten by Iga Świątek 1–2
31/08/21 · WTA Grand Slam 2021 · Second round · detail
−5.31685.3 → 1680.0
beat Nao Hibino 2–0
30/08/21 · WTA Grand Slam 2021 · First round · detail
+7.91677.4 → 1685.3
beaten by Elina Svitolina 0–2
23/08/21 · WTA 250 2021 · Second round · detail
−6.81684.2 → 1677.4

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.