Michael Chang

Where the 1551.3 rating comes from

From 646 matches played between 26 February 1990 and 18 August 2003, 637 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.

646 matches, from the most recent to the first

beaten by Rik de Voest 0–2
18/08/03 · ATP 250 2003 · First round · detail
−14.61565.8 → 1551.3
beaten by Hicham Arazi 1–2
11/08/03 · ATP 1000 2003 · First round · detail
−9.31575.1 → 1565.8
beat Zack Fleishman 2–0
28/07/03 · ATP 250 2003 · First round · detail
+9.31565.8 → 1575.1
beaten by Mark Philippoussis 0–2
28/07/03 · ATP 250 2003 · Second round · detail
−4.91570.7 → 1565.8
beaten by Eric Taino 1–2
21/07/03 · ATP 250 2003 · First round · detail
−15.41586.1 → 1570.7
beaten by Andre Agassi 0–2
10/02/03 · ATP 250 2003 · First round · detail
−2.41588.6 → 1586.1
beaten by Lleyton Hewitt 0–2
30/09/02 · ATP 500 2002 · Second round · detail
−2.51591.1 → 1588.6
beat Francisco Clavet 2–1
30/09/02 · ATP 500 2002 · First round · detail
+11.11580.0 → 1591.1
beaten by Roger Federer 0–3
26/08/02 · ATP Grand Slam 2002 · detail
−6.71586.6 → 1580.0
beat Francisco Clavet 3–1
26/08/02 · ATP Grand Slam 2002 · detail
+11.71575.0 → 1586.6
beat Martin Lee 2–1
12/08/02 · ATP 500 2002 · First round · detail
+9.31565.7 → 1575.0
beaten by Jérôme Golmard 0–2
12/08/02 · ATP 500 2002 · Second round · detail
−7.61573.3 → 1565.7
beat Tommy Haas 2–0
05/08/02 · ATP 1000 2002 · First round · detail
+20.61552.7 → 1573.3
beat Fernando Vicente 2–1
05/08/02 · ATP 1000 2002 · Second round · detail
+12.51540.2 → 1552.7
beaten by Carlos Moyà 0–2
05/08/02 · ATP 1000 2002 · Third round · detail
−4.01544.2 → 1540.2
beaten by Jan-Michael Gambill 1–2
22/07/02 · ATP 250 2002 · First round · detail
−7.11551.2 → 1544.2
beaten by Sjeng Schalken 1–3
25/06/02 · ATP Grand Slam 2002 · Second round · detail
−6.01557.3 → 1551.2
24/06/02 · ATP Grand Slam 2002 · First round · detail
+11.61545.7 → 1557.3
beaten by Lleyton Hewitt 0–2
17/06/02 · ATP 250 2002 · First round · detail
−2.11547.8 → 1545.7
beaten by Jan-Michael Gambill 0–2
10/06/02 · ATP 250 2002 · First round · detail
−7.21555.0 → 1547.8
beaten by Sébastien de Chaunac 2–3
27/05/02 · ATP Grand Slam 2002 · detail
−14.91569.9 → 1555.0
beat Julian Knowle 2–0
22/04/02 · ATP 250 2002 · First round · detail
+7.71562.3 → 1569.9
beaten by James Blake 0–2
22/04/02 · ATP 250 2002 · Second round · detail
−10.11572.4 → 1562.3
beaten by Paradorn Srichaphan 1–2
20/03/02 · ATP 1000 2002 · First round · detail
−14.01586.4 → 1572.4
beaten by Paradorn Srichaphan 1–2
11/03/02 · ATP 1000 2002 · First round · detail
−15.01601.4 → 1586.4
beaten by Wayne Arthurs 0–2
25/02/02 · ATP 250 2002 · First round · detail
−14.51615.8 → 1601.4
beaten by James Blake 0–2
18/02/02 · ATP 500 2002 · First round · detail
−14.31630.1 → 1615.8
beaten by Axel Pretzsch 1–2
11/02/02 · ATP 250 2002 · First round · detail
−15.41645.6 → 1630.1
beaten by Roger Federer 0–3
14/01/02 · ATP Grand Slam 2002 · detail
−6.01651.6 → 1645.6
beaten by Marat Safin 1–2
07/01/02 · ATP 250 2002 · First round · detail
−7.31658.9 → 1651.6
beaten by Olivier Rochus 1–2
15/10/01 · ATP 1000 2001 · Qualifying — First round · detail
−16.01674.8 → 1658.9
beaten by Stefan Koubek 1–2
08/10/01 · ATP 500 2001 · Second round · detail
−15.51690.3 → 1674.8
08/10/01 · ATP 500 2001 · First round · detail
+13.91676.4 → 1690.3
beaten by Takao Suzuki 0–2
01/10/01 · ATP 500 2001 · Third round · detail
−19.11695.6 → 1676.4
beat Axel Pretzsch 2–0
01/10/01 · ATP 500 2001 · Second round · detail
+6.21689.3 → 1695.6
beat James Blake 2–0
24/09/01 · ATP 250 2001 · First round · detail
+5.81683.5 → 1689.3
beaten by Andrew Ilie 0–2
24/09/01 · ATP 250 2001 · Second round · retirement · detail
±0.01683.5 → 1683.5
beat Nicolas Kiefer 2–1
13/08/01 · ATP 500 2001 · Second round · detail
+15.41668.1 → 1683.5
beat Guillermo Cañas 2–1
13/08/01 · ATP 500 2001 · Third round · detail
+15.11653.0 → 1668.1
beat Fabrice Santoro 2–0
13/08/01 · ATP 500 2001 · Quarterfinals · detail
+16.81636.2 → 1653.0
beat Byron Black 2–0
13/08/01 · ATP 500 2001 · First round · detail
+12.11624.1 → 1636.2
beaten by Andy Roddick 0–2
13/08/01 · ATP 500 2001 · Semifinals · detail
−6.91631.0 → 1624.1
06/08/01 · ATP 1000 2001 · First round · detail
+9.01622.0 → 1631.0
beaten by Guillermo Cañas 1–2
06/08/01 · ATP 1000 2001 · Second round · detail
−8.61630.6 → 1622.0
beaten by Alberto Martín 0–2
30/07/01 · ATP 1000 2001 · First round · detail
−12.51643.1 → 1630.6
beaten by Pete Sampras 0–2
23/07/01 · ATP 250 2001 · Second round · detail
−4.41647.5 → 1643.1
beat Noam Behr 2–0
23/07/01 · ATP 250 2001 · First round · detail
+5.21642.3 → 1647.5
beaten by Jonas Björkman 0–3
27/06/01 · ATP Grand Slam 2001 · Second round · detail
−11.41653.7 → 1642.3
beat Jiří Vaněk 3–2
25/06/01 · ATP Grand Slam 2001 · First round · detail
+8.71645.0 → 1653.7
beaten by Thomas Johansson 0–2
11/06/01 · ATP 250 2001 · First round · detail
−7.81652.8 → 1645.0

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.