Amelie Mauresmo defeated Maria Sharapova 7-5 6-4 in the Los Angeles round robin on hard. The upset overturned the form book — Maria Sharapova came in defending last year's round of 16, but Amelie Mauresmo had been the form player, winning 4 of their last 7 on hard.
Mauresmo A. took it in straight sets.
Mauresmo A. and Sharapova M. faced 14 of the same opponents in the last 12 months. Mauresmo A. went 15–5 (75%) against them, Sharapova M. 11–9 (55%). Results against comparable opponents are close (5 : 4 better-results split).
Amelie Mauresmo beat Maria Sharapova 7-5 6-4. Umpiry, "Amelie Mauresmo vs Maria Sharapova — Los Angeles Round Robin", https://umpiry.com/match/2004-11-13/mauresmo-vs-sharapova-los-angeles-rr?utm_source=cite (as of 13 November 2004).