Roger Federer defeated Mark Philippoussis 6-4 7-6 4-6 6-4 in the SUI vs AUS round robin on carpet.
Federer R. came through in four sets.
Federer R. and Philippoussis M. faced 3 of the same opponents in the last 12 months. Federer R. went 0–3 (0%) against them, Philippoussis M. 2–1 (67%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Roger Federer beat Mark Philippoussis 6-4 7-6 4-6 6-4. Umpiry, "Roger Federer vs Mark Philippoussis — SUI vs AUS Round Robin", https://umpiry.com/match/2000-02-04/federer-vs-philippoussis-sui-vs-aus-rr?utm_source=cite (as of 4 February 2000).