David Ferrer defeated Albert Costa 5-7 6-4 6-3 in the Hamburg round of 16 on clay. The upset overturned the form book — Albert Costa came in defending last year's round of 32, but David Ferrer had been the form player, winning 3 of their last 5 on clay.
Ferrer D. came through in three sets.
Ferrer D. and Costa A. faced 4 of the same opponents in the last 12 months. Ferrer D. went 2–3 (40%) against them, Costa A. 3–1 (75%). Results against comparable opponents are close (1 : 2 better-results split).
Only 4 common opponents — small sample, treat as indicative.
David Ferrer beat Albert Costa 5-7 6-4 6-3. Umpiry, "David Ferrer vs Albert Costa — Hamburg Round of 16", https://umpiry.com/match/2004-05-13/costa-vs-ferrer-hamburg-r16?utm_source=cite (as of 13 May 2004).