Yukie Koizumi

Where the 1477.9 rating comes from

From 5 matches played between 1 January 1990 and 23 April 1990, 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.

5 matches, from the most recent to the first

beaten by Maya Kidowaki 0–2
23/04/90 · WTA 1000 1990 · Second round · detail
−22.31500.2 → 1477.9
beat Belinda Borneo 2–1
23/04/90 · WTA 1000 1990 · First round · detail
+25.81474.5 → 1500.2
beaten by Jana Novotná 0–2
26/02/90 · WTA 1000 1990 · Second round · detail
−22.31496.8 → 1474.5
beat Hu Na 2–1
26/02/90 · WTA 1000 1990 · First round · detail
+22.51474.2 → 1496.8
beaten by Maya Kidowaki 0–2
01/01/90 · WTA 1000 1990 · First round · detail
−25.81500.0 → 1474.2

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.