Roger Federer defeated Andreas Seppi 6-3 6-1 in the Hamburg semi-final on clay. The result followed the form book — Roger Federer came in leading the head-to-head 1–0, defending the title. Roger Federer extended the head-to-head to 2–0.
Federer R. took it in straight sets.
Federer R. and Seppi A. faced 7 of the same opponents in the last 12 months. Federer R. went 10–2 (83%) against them, Seppi A. 2–6 (25%). Federer R. came out clearly better against 3 of 5 comparable opponents, Seppi A. against 0 — though 1 of those edges carries caveats (retirement).
Roger Federer beat Andreas Seppi 6-3 6-1. Umpiry, "Roger Federer vs Andreas Seppi — Hamburg Semi-final", https://umpiry.com/match/2008-05-17/federer-vs-seppi-hamburg-sf?utm_source=cite (as of 17 May 2008).