Ivan Ljubicic defeated Stefan Koubek 5-7 6-3 7-6 6-3 in the CRO vs AUT round robin on carpet.
Ljubicic I. came through in four sets.
Ljubicic I. and Koubek S. faced 4 of the same opponents in the last 12 months. Ljubicic I. went 1–3 (25%) against them, Koubek S. 1–4 (20%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 4 common opponents — small sample, treat as indicative.
Ivan Ljubicic beat Stefan Koubek 5-7 6-3 7-6 6-3. Umpiry, "Ivan Ljubicic vs Stefan Koubek — CRO vs AUT Round Robin", https://umpiry.com/match/2001-04-06/koubek-vs-ljubicic-cro-vs-aut-rr?utm_source=cite (as of 6 April 2001).