Mikhail Youzhny defeated Leonardo Mayer 6-3 6-1 6-4 in the RUS vs ARG round robin on hard.
Youzhny M. took it in straight sets.
Youzhny M. and Mayer L. faced 6 of the same opponents in the last 12 months. Youzhny M. went 6–1 (86%) against them, Mayer L. 0–6 (0%). Youzhny M. came out better against 3 of 4 comparable opponents, Mayer L. against 0 — though 2 of those edges carry caveats (retirement).
Mikhail Youzhny beat Leonardo Mayer 6-3 6-1 6-4. Umpiry, "Mikhail Youzhny vs Leonardo Mayer — RUS vs ARG Round Robin", https://umpiry.com/match/2010-07-09/mayer-vs-youzhny-rus-vs-arg-rr?utm_source=cite (as of 9 July 2010).