Kumiko Okamoto

Where the 1455.6 rating comes from

From 15 matches played between 15 January 1990 and 4 February 1992, 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.

15 matches, from the most recent to the first

beat Nana Smith 2–1
04/02/92 · WTA 1000 1992 · Second round · detail
+10.91444.7 → 1455.6
beaten by Karina Habšudová 0–2
04/02/92 · WTA 1000 1992 · Quarterfinals · detail
−8.31453.0 → 1444.7
beaten by Rachel McQuillan 0–2
27/01/92 · WTA 1000 1992 · First round · detail
−7.91461.0 → 1453.0
beaten by Laura Arraya 0–2
08/04/91 · WTA 1000 1991 · Quarterfinals · detail
−8.51469.5 → 1461.0
08/04/91 · WTA 1000 1991 · Second round · detail
+15.11454.3 → 1469.5
beat Anne Minter 2–0
08/04/91 · WTA 1000 1991 · First round · detail
+26.91427.5 → 1454.3
beaten by Magdalena Maleeva 0–2
24/09/90 · WTA 1000 1990 · First round · detail
−17.71445.2 → 1427.5
beaten by Elena Brioukhovets 0–2
11/06/90 · WTA 1000 1990 · First round · detail
−24.91470.1 → 1445.2
beaten by Claudia Kohde-Kilsch 0–2
28/05/90 · WTA Grand Slam 1990 · First round · detail
−28.71498.8 → 1470.1
09/04/90 · WTA 1000 1990 · First round · detail
+21.71477.1 → 1498.8
beaten by Elizabeth Smylie 0–2
09/04/90 · WTA 1000 1990 · Quarterfinals · detail
−21.21498.3 → 1477.1
beat Betsy Nagelsen 2–0
09/04/90 · WTA 1000 1990 · Second round · detail
+24.71473.6 → 1498.3
beaten by Maya Kidowaki 0–2
29/01/90 · WTA 1000 1990 · First round · detail
−25.11498.7 → 1473.6
beaten by Nicole Jagerman 0–2
17/01/90 · WTA Grand Slam 1990 · Second round · detail
−25.31524.0 → 1498.7
beat Maureen Drake 2–1
15/01/90 · WTA Grand Slam 1990 · First round · detail
+24.01500.0 → 1524.0

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.