Roger Federer defeated Juan Monaco 6-3 2-6 6-4 in the Hamburg round of 32 on clay. The upset overturned the form book — Juan Monaco came in defending last year's round of 32.
Federer R. came through in three sets.
Federer R. and Monaco J. faced 4 of the same opponents in the last 12 months. Federer R. went 5–0 (100%) against them, Monaco J. 0–5 (0%). Federer R. came out better against 3 of 3 comparable opponents, Monaco J. against 0.
Only 4 common opponents — small sample, treat as indicative.
Roger Federer beat Juan Monaco 6-3 2-6 6-4. Umpiry, "Roger Federer vs Juan Monaco — Hamburg Round of 32", https://umpiry.com/match/2007-05-16/federer-vs-monaco-hamburg-r32?utm_source=cite (as of 16 May 2007).