Novak Djokovic defeated Sam Querrey 7-5 6-7 6-1 6-0 in the USA vs SRB round robin on hard. The result followed the form book — Novak Djokovic came in leading the head-to-head 5–1. Novak Djokovic extended the head-to-head to 6–1.
Djokovic N. came through in four sets.
Djokovic N. and Querrey S. faced 9 of the same opponents in the last 12 months. Djokovic N. went 19–2 (90%) against them, Querrey S. 2–9 (18%). Djokovic N. came out clearly better against 7 of 9 comparable opponents, Querrey S. against 0 — though 1 of those edges carries caveats (retirement).
Hard: Djokovic N. leads 4–1 · Clay: Djokovic N. leads 2–0
Novak Djokovic beat Sam Querrey 7-5 6-7 6-1 6-0. Umpiry, "Novak Djokovic vs Sam Querrey — USA vs SRB Round Robin", https://umpiry.com/match/2013-04-05/djokovic-vs-querrey-usa-vs-srb-rr?utm_source=cite (as of 5 April 2013).