Alex O'Brien

Where the 1501.1 rating comes from

From 187 matches played between 12 August 1991 and 13 August 2001, 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.

187 matches, from the most recent to the first

beaten by Alex Kim 1–2
13/08/01 · ATP 500 2001 · First round · detail
−13.81514.9 1501.1
beaten by Guillermo Cañas 1–2
05/03/01 · ATP 250 2001 · First round · detail
−10.21525.1 1514.9
beaten by Gianluca Pozzi 1–3
15/01/01 · ATP Grand Slam 2001 · detail
−8.21533.3 1525.1
13/11/00 · ATP 1000 2000 · Qualifying — Qualifying competition · detail
+10.91522.4 1533.3
13/11/00 · ATP 1000 2000 · Qualifying — First round · walkover · detail
±0.01522.4 1522.4
beaten by Albert Costa 0–2
13/11/00 · ATP 1000 2000 · First round · detail
−6.81529.2 1522.4
beaten by Nikolay Davydenko 0–2
23/10/00 · ATP 250 2000 · Qualifying — Second round · detail
−11.61540.8 1529.2
beat Andy Fahlke 2–1
23/10/00 · ATP 250 2000 · Qualifying — First round · detail
+9.51531.3 1540.8
beat Marcos Ondruska 2–1
14/08/00 · ATP 500 2000 · First round · detail
+10.31521.0 1531.3
beaten by Jan-Michael Gambill 1–2
14/08/00 · ATP 500 2000 · Second round · detail
−4.71525.7 1521.0
beaten by Martin Damm Jr. 1–2
07/08/00 · ATP 1000 2000 · Qualifying — First round · detail
−9.41535.1 1525.7
beaten by Paul Goldstein 0–2
24/07/00 · ATP 250 2000 · Second round · detail
−10.81545.8 1535.1
beat Andrew Ilie 2–0
24/07/00 · ATP 250 2000 · First round · detail
+13.31532.5 1545.8
beaten by Gianluca Pozzi 0–3
27/06/00 · ATP Grand Slam 2000 · Second round · detail
−8.61541.1 1532.5
beat Ivan Ljubičić 3–1
26/06/00 · ATP Grand Slam 2000 · First round · detail
+13.01528.0 1541.1
beaten by Jan-Michael Gambill 0–2
13/03/00 · ATP 1000 2000 · Qualifying — First round · detail
−9.91537.9 1528.0
beaten by Axel Pretzsch 0–3
17/01/00 · ATP Grand Slam 2000 · detail
−12.21550.1 1537.9
09/08/99 · ATP 1000 1999 · Qualifying — First round · detail
+8.61541.5 1550.1
beaten by Arnaud Clément 1–2
09/08/99 · ATP 1000 1999 · Qualifying — Qualifying competition · detail
−11.71553.1 1541.5
beaten by Patrick Rafter 0–2
02/08/99 · ATP 1000 1999 · Second round · detail
−4.41557.5 1553.1
beat Gianluca Pozzi 2–1
02/08/99 · ATP 1000 1999 · First round · detail
+12.01545.5 1557.5
beaten by Lleyton Hewitt 0–2
26/07/99 · ATP 250 1999 · First round · detail
−6.41552.0 1545.5
beaten by Galo Blanco 0–2
19/04/99 · ATP 250 1999 · First round · detail
−13.91565.9 1552.0
beaten by Jan Siemerink 0–2
16/03/99 · ATP 1000 1999 · Second round · detail
−9.01574.9 1565.9
15/03/99 · ATP 1000 1999 · First round · detail
+11.01563.9 1574.9
beaten by Pat Rafter 0–2
01/03/99 · ATP 250 1999 · First round · detail
−3.51567.3 1563.9
beaten by Tommy Haas 0–2
15/02/99 · ATP 500 1999 · Second round · detail
−6.51573.8 1567.3
beat Grant Stafford 2–0
15/02/99 · ATP 500 1999 · First round · detail
+10.31563.5 1573.8
beaten by Richard Krajicek 0–3
31/08/98 · ATP Grand Slam 1998 · detail
−3.71567.2 1563.5
beat Leander Paes 3–0
31/08/98 · ATP Grand Slam 1998 · detail
+13.61553.7 1567.2
beat Max Mirnyi 2–0
17/08/98 · ATP 500 1998 · First round · detail
+8.71545.0 1553.7
beaten by Gustavo Kuerten 0–2
17/08/98 · ATP 500 1998 · Second round · detail
−7.21552.2 1545.0
beaten by Alex Corretja 1–2
10/08/98 · ATP 1000 1998 · First round · detail
−5.01557.2 1552.2
beaten by Michael Craig Russell 1–2
03/08/98 · ATP 1000 1998 · Qualifying — Qualifying competition · retirement · detail
±0.01557.2 1557.2
03/08/98 · ATP 1000 1998 · Qualifying — First round · detail
+10.41546.8 1557.2
beaten by Richard Krajicek 1–2
03/08/98 · ATP 1000 1998 · Third round · detail
−3.61550.4 1546.8
beat Ramón Delgado 2–1
03/08/98 · ATP 1000 1998 · Second round · detail
+11.71538.7 1550.4
beat Gustavo Kuerten 2–0
03/08/98 · ATP 1000 1998 · First round · detail
+18.11520.5 1538.7
beaten by Justin Gimelstob 1–2
06/07/98 · ATP 250 1998 · First round · detail
−11.61532.1 1520.5
beaten by Mark Philippoussis 1–3
23/06/98 · ATP Grand Slam 1998 · Second round · detail
−5.41537.5 1532.1
beat Kenneth Carlsen 3–2
22/06/98 · ATP Grand Slam 1998 · First round · detail
+14.01523.6 1537.5
beaten by Thomas Enqvist 1–2
08/06/98 · ATP 250 1998 · Second round · detail
−2.81526.4 1523.6
beat Mark Petchey 2–0
08/06/98 · ATP 250 1998 · First round · detail
+10.11516.4 1526.4
beaten by Magnus Gustafsson 1–3
25/05/98 · ATP Grand Slam 1998 · detail
−5.11521.4 1516.4
beaten by Vincent Spadea 1–2
04/05/98 · ATP 250 1998 · First round · detail
−10.81532.2 1521.4
beaten by Pete Sampras 0–2
27/04/98 · ATP 250 1998 · First round · detail
−1.51533.7 1532.2
13/04/98 · ATP 500 1998 · First round · detail
+10.61523.1 1533.7
beaten by Mikael Tillström 1–2
13/04/98 · ATP 500 1998 · Second round · detail
−9.01532.1 1523.1
beaten by Geoff Grant 0–2
06/04/98 · ATP 250 1998 · First round · detail
−14.61546.7 1532.1
beat Richard Fromberg 2–0
09/03/98 · ATP 1000 1998 · Qualifying — First round · detail
+13.21533.5 1546.7

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.