Juan Martin del Potro defeated Nikolay Davydenko 6-1 6-4 6-2 in the ARG vs RUS round robin on clay. The upset overturned the form book — Nikolay Davydenko came in leading the head-to-head 1–0, but Juan Martin del Potro had been the form player, winning 3 of their last 5 on clay. Juan Martin del Potro claimed a first win over Nikolay Davydenko in two meetings, levelling the head-to-head at 1–1.
del Potro J. took it in straight sets.
del Potro J. and Davydenko N. faced 4 of the same opponents in the last 12 months. del Potro J. went 3–2 (60%) against them, Davydenko N. 4–2 (67%). Results against comparable opponents are close (2 : 2 better-results split).
Only 4 common opponents — small sample, treat as indicative.
Clay: del Potro J. leads 1–0 · Hard: Davydenko N. leads 1–0
Juan Martin del Potro beat Nikolay Davydenko 6-1 6-4 6-2. Umpiry, "Juan Martin del Potro vs Nikolay Davydenko — ARG vs RUS Round Robin", https://umpiry.com/match/2008-09-19/davydenko-vs-potro-arg-vs-rus-rr?utm_source=cite (as of 19 September 2008).