Debbie Graham

Where the 1500.0 rating comes from

From 139 matches played between 17 September 1990 and 17 May 1999, 137 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.

139 matches, from the most recent to the first

17/05/99 · WTA 1000 1999 · Qualifying — Second round · detail
−11.51511.5 → 1500.0
17/05/99 · WTA 1000 1999 · Qualifying — First round · detail
+10.91500.6 → 1511.5
beaten by Linda Harvey-Wild 1–2
22/02/99 · WTA 1000 1999 · Qualifying — First round · detail
−10.41511.0 → 1500.6
beaten by Lisa Raymond 0–2
11/01/99 · WTA 1000 1999 · Qualifying — First round · detail
−5.21516.2 → 1511.0
beat Maureen Drake 2–0
21/10/96 · WTA 1000 1996 · First round · detail
+7.71508.4 → 1516.2
beaten by Lisa Raymond 0–2
21/10/96 · WTA 1000 1996 · Second round · detail
−6.51515.0 → 1508.4
beaten by Judith Wiesner 0–2
28/08/96 · WTA Grand Slam 1996 · Second round · detail
−4.51519.5 → 1515.0
26/08/96 · WTA Grand Slam 1996 · First round · detail
+14.01505.5 → 1519.5
beat Kathy Rinaldi 2–1
12/08/96 · WTA 1000 1996 · First round · detail
+11.41494.1 → 1505.5
beaten by Amy Frazier 1–2
12/08/96 · WTA 1000 1996 · Second round · detail
−5.71499.8 → 1494.1
21/03/96 · WTA 1000 1996 · First round · detail
+11.61488.2 → 1499.8
beaten by Amanda Coetzer 0–2
21/03/96 · WTA 1000 1996 · Second round · detail
−3.21491.4 → 1488.2
beaten by Janette Husárová 0–2
20/02/96 · WTA 1000 1996 · First round · detail
−15.81507.3 → 1491.4
beaten by Kyoko Nagatsuka 1–2
26/06/95 · WTA Grand Slam 1995 · First round · detail
−9.61516.9 → 1507.3
beaten by Anna Smashnova-Pistolesi 0–2
30/05/95 · WTA Grand Slam 1995 · Second round · detail
−12.11529.0 → 1516.9
beat Barbara Paulus 2–0
29/05/95 · WTA Grand Slam 1995 · First round · detail
+13.21515.7 → 1529.0
beaten by Patricia Hy-Boulais 1–2
15/05/95 · WTA 1000 1995 · Second round · detail
−10.71526.4 → 1515.7
beat Mana Endo 2–0
15/05/95 · WTA 1000 1995 · First round · detail
+16.11510.3 → 1526.4
beaten by Shaun Stafford 0–2
08/05/95 · WTA 1000 1995 · First round · detail
−11.01521.3 → 1510.3
beaten by María Sánchez Lorenzo 0–2
10/04/95 · WTA 1000 1995 · First round · detail
−12.61533.9 → 1521.3
beaten by Silvia Ramón-Cortés 1–2
03/04/95 · WTA 1000 1995 · First round · detail
−14.51548.5 → 1533.9
beaten by Lea Ghirardi 1–2
27/03/95 · WTA 1000 1995 · First round · detail
−17.71566.2 → 1548.5
beaten by Karina Habšudová 0–2
14/03/95 · WTA 1000 1995 · Second round · detail
−9.81576.0 → 1566.2
13/03/95 · WTA 1000 1995 · First round · detail
+9.81566.2 → 1576.0
beat Elna Reinach 2–0
06/02/95 · WTA 1000 1995 · First round · detail
+12.61553.6 → 1566.2
beaten by Brenda Schultz-McCarthy 0–2
06/02/95 · WTA 1000 1995 · Second round · detail
−6.31560.0 → 1553.6
beaten by Kyoko Nagatsuka 1–2
30/01/95 · WTA 1000 1995 · First round · detail
−13.41573.3 → 1560.0
beaten by Lindsay Davenport 1–2
16/01/95 · WTA Grand Slam 1995 · First round · detail
−5.31578.6 → 1573.3
beaten by Naoko Sawamatsu 0–2
09/01/95 · WTA 1000 1995 · First round · detail
−7.41585.9 → 1578.6
beat Patty Fendick 2–1
31/10/94 · WTA 1000 1994 · Second round · detail
+13.41572.5 → 1585.9
beaten by Martina Navratilova 1–2
31/10/94 · WTA 1000 1994 · Semifinals · detail
−3.31575.8 → 1572.5
beat Lori McNeil 2–0
31/10/94 · WTA 1000 1994 · First round · detail
+17.71558.1 → 1575.8
beat Jolene Watanabe 2–0
31/10/94 · WTA 1000 1994 · Quarterfinals · detail
+9.31548.8 → 1558.1
beat Kyoko Nagatsuka 2–0
19/09/94 · WTA 1000 1994 · First round · detail
+9.61539.2 → 1548.8
beaten by Arantxa Sánchez Vicario 0–2
19/09/94 · WTA 1000 1994 · Second round · detail
−0.91540.1 → 1539.2
beaten by Katarína Studeníková 1–2
29/08/94 · WTA Grand Slam 1994 · First round · detail
−16.51556.6 → 1540.1
beaten by Wang Shi-ting 0–2
22/08/94 · WTA 1000 1994 · Second round · detail
−11.21567.8 → 1556.6
22/08/94 · WTA 1000 1994 · First round · detail
+5.91561.8 → 1567.8
beat Wang Shi-ting 2–1
15/08/94 · WTA 1000 1994 · First round · detail
+14.21547.7 → 1561.8
beaten by Elna Reinach 1–2
15/08/94 · WTA 1000 1994 · Second round · detail
−12.81560.4 → 1547.7
beaten by Zina Garrison-Jackson 1–2
08/08/94 · WTA 1000 1994 · Second round · detail
−6.91567.4 → 1560.4
beat Nathalie Baudone 2–0
08/08/94 · WTA 1000 1994 · First round · detail
+10.01557.4 → 1567.4
beaten by Inés Gorrochategui 0–2
20/06/94 · WTA Grand Slam 1994 · First round · detail
−6.51563.8 → 1557.4
beaten by Barbara Paulus 1–0
07/03/94 · WTA 1000 1994 · First round · retirement · detail
±0.01563.8 → 1563.8
beaten by Rachel McQuillan 1–2
18/01/94 · WTA Grand Slam 1994 · Second round · detail
−12.11575.9 → 1563.8
beat Rennae Stubbs 2–1
17/01/94 · WTA Grand Slam 1994 · First round · detail
+7.71568.2 → 1575.9
beaten by Mana Endo 0–2
10/01/94 · WTA 1000 1994 · First round · detail
−11.61579.9 → 1568.2
beaten by Steffi Graf 0–2
08/11/93 · WTA 1000 1993 · First round · detail
−0.71580.6 → 1579.9
beat Rennae Stubbs 2–0
01/11/93 · WTA 1000 1993 · Second round · detail
+7.21573.3 → 1580.6
beaten by Patricia Hy-Boulais 0–2
01/11/93 · WTA 1000 1993 · Quarterfinals · detail
−8.41581.7 → 1573.3

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.