Katie O'Brien

Where the 1389.2 rating comes from

From 47 matches played between 21 June 2004 and 20 June 2011, 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.

47 matches, from the most recent to the first

beaten by Kimiko Date-Krumm 0–2
20/06/11 · WTA Grand Slam 2011 · First round · detail
−4.31393.5 → 1389.2
beat Caroline Price 2–1
14/02/11 · WTA 250 2011 · Qualifying — First round · detail
+16.11377.4 → 1393.5
beaten by Alexa Glatch 0–2
14/02/11 · WTA 250 2011 · Qualifying — Qualifying competition · detail
−9.91387.3 → 1377.4
beaten by Noppawan Lertcheewakarn 0–2
03/01/11 · WTA 250 2011 · Qualifying — Qualifying competition · detail
−10.11397.4 → 1387.3
beat Junri Namigata 2–0
03/01/11 · WTA 250 2011 · Qualifying — Second round · detail
+13.01384.4 → 1397.4
beat Emily Fanning 2–0
03/01/11 · WTA 250 2011 · Qualifying — First round · detail
+16.41368.0 → 1384.4
beaten by Ekaterina Ivanova 0–2
20/09/10 · WTA 250 2010 · First round · detail
−7.61375.7 → 1368.0
beaten by Sania Mirza 1–2
13/09/10 · WTA 250 2010 · First round · detail
−5.11380.8 → 1375.7
beaten by Kimiko Date-Krumm 0–2
16/08/10 · WTA 1000 2010 · Qualifying — First round · detail
−2.91383.7 → 1380.8
beaten by Alona Bondarenko 1–2
21/06/10 · WTA Grand Slam 2010 · First round · detail
−2.31385.9 → 1383.7
beaten by Sesil Karatantcheva 0–2
07/06/10 · WTA 250 2010 · First round · detail
−4.71390.6 → 1385.9
beaten by Jill Craybas 1–2
24/05/10 · WTA Grand Slam 2010 · First round · detail
−8.81399.4 → 1390.6
beaten by Renata Voráčová 0–2
26/04/10 · WTA 250 2010 · Second round · detail
−10.81410.1 → 1399.4
26/04/10 · WTA 250 2010 · First round · detail
+16.01394.1 → 1410.1
beaten by Bethanie Mattek-Sands 0–2
15/02/10 · WTA 250 2010 · First round · detail
−6.21400.3 → 1394.1
beaten by Jelena Janković 0–2
19/01/10 · WTA Grand Slam 2010 · Second round · detail
−1.11401.4 → 1400.3
18/01/10 · WTA Grand Slam 2010 · First round · detail
+16.31385.1 → 1401.4
beaten by Caroline Wozniacki 0–2
12/10/09 · WTA 250 2009 · Second round · detail
−1.01386.1 → 1385.1
beat Alexa Glatch 2–0
12/10/09 · WTA 250 2009 · First round · detail
+14.11372.0 → 1386.1
beaten by Alla Kudryavtseva 0–2
14/09/09 · WTA 250 2009 · First round · detail
−6.31378.2 → 1372.0
beaten by Lucie Šafářová 0–2
20/07/09 · WTA 250 2009 · First round · detail
−4.21382.5 → 1378.2
beaten by Monica Niculescu 0–2
13/07/09 · WTA 250 2009 · First round · detail
−8.31390.8 → 1382.5
beaten by Iveta Benešová 1–2
22/06/09 · WTA Grand Slam 2009 · First round · detail
−3.51394.3 → 1390.8
beaten by Melanie South 1–2
08/06/09 · WTA 250 2009 · First round · detail
−8.31402.7 → 1394.3
beaten by Olga Govortsova 0–2
24/05/09 · WTA Grand Slam 2009 · First round · detail
−7.11409.7 → 1402.7
beaten by Stéphanie Dubois 1–2
13/04/09 · WTA 500 2009 · First round · detail
−12.31422.0 → 1409.7
beaten by Monica Niculescu 0–2
19/01/09 · WTA Grand Slam 2009 · First round · detail
−8.21430.3 → 1422.0
beaten by Ioana Raluca Olaru 0–2
29/09/08 · WTA 1000 2008 · First round · detail
−8.11438.4 → 1430.3
beaten by Vera Dushevina 0–2
21/07/08 · WTA 1000 2008 · Second round · detail
−6.21444.6 → 1438.4
21/07/08 · WTA 1000 2008 · First round · detail
+18.61426.0 → 1444.6
beaten by Lourdes Domínguez Lino 1–2
07/07/08 · WTA 1000 2008 · First round · detail
−9.01435.0 → 1426.0
beaten by Shahar Pe'er 0–2
23/06/08 · WTA Grand Slam 2008 · First round · detail
−3.81438.8 → 1435.0
beaten by Samantha Stosur 0–2
16/06/08 · WTA 1000 2008 · First round · detail
−4.11442.9 → 1438.8
beaten by Yaroslava Shvedova 1–2
09/06/08 · WTA 1000 2008 · Second round · detail
−10.41453.2 → 1442.9
09/06/08 · WTA 1000 2008 · First round · detail
+13.61439.6 → 1453.2
beaten by Iveta Benešová 0–2
12/05/08 · WTA 1000 2008 · Qualifying — First round · detail
−7.11446.7 → 1439.6
beaten by Olga Savchuk 1–2
03/03/08 · WTA 1000 2008 · First round · detail
−12.21458.8 → 1446.7
beaten by Maria Elena Camerin 0–2
13/08/07 · WTA 1000 2007 · Qualifying — First round · detail
−18.11476.9 → 1458.8
beaten by Michaëlla Krajicek 0–2
26/06/07 · WTA Grand Slam 2007 · Second round · detail
−11.51488.3 → 1476.9
beat Sandra Klösel 2–0
25/06/07 · WTA Grand Slam 2007 · First round · detail
+20.41467.9 → 1488.3
beat Vasilisa Bardina 2–0
18/06/07 · WTA 1000 2007 · First round · detail
+30.71437.3 → 1467.9
beaten by Elena Dementieva 0–2
18/06/07 · WTA 1000 2007 · Second round · detail
−3.41440.7 → 1437.3
beaten by Tathiana Garbin 1–2
26/06/06 · WTA Grand Slam 2006 · First round · detail
−16.51457.2 → 1440.7
beaten by Francesca Schiavone 0–2
19/06/06 · WTA 1000 2006 · First round · detail
−4.41461.6 → 1457.2
beaten by Ayumi Morita 1–2
12/06/06 · WTA 1000 2006 · First round · detail
−23.81485.4 → 1461.6
beaten by Kim Clijsters 0–2
20/06/05 · WTA Grand Slam 2005 · First round · detail
−0.81486.2 → 1485.4
beaten by María Sánchez Lorenzo 0–2
21/06/04 · WTA Grand Slam 2004 · First round · detail
−13.81500.0 → 1486.2

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.