Nikolay Davydenko defeated Eduardo Schwank 4-6 6-3 6-1 6-4 in the RUS vs ARG round robin on hard.
Davydenko N. came through in four sets.
Davydenko N. and Schwank E. faced 3 of the same opponents in the last 12 months. Davydenko N. went 2–3 (40%) against them, Schwank E. 1–2 (33%). Only 1 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Nikolay Davydenko beat Eduardo Schwank 4-6 6-3 6-1 6-4. Umpiry, "Nikolay Davydenko vs Eduardo Schwank — RUS vs ARG Round Robin", https://umpiry.com/match/2010-07-09/davydenko-vs-schwank-rus-vs-arg-rr?utm_source=cite (as of 9 July 2010).