Novak Djokovic defeated John Isner 7-6 6-2 7-5 in the USA vs SRB round robin on hard. The result followed the form book — Novak Djokovic came in leading the head-to-head 2–1. Novak Djokovic extended the head-to-head to 3–1.
Djokovic N. took it in straight sets.
Djokovic N. and Isner J. faced 8 of the same opponents in the last 12 months. Djokovic N. went 15–0 (100%) against them, Isner J. 2–7 (22%). Djokovic N. came out clearly better against 5 of 7 comparable opponents, Isner J. against 0.
Hard: Djokovic N. leads 2–1 · Clay: Djokovic N. leads 1–0
Novak Djokovic beat John Isner 7-6 6-2 7-5. Umpiry, "Novak Djokovic vs John Isner — USA vs SRB Round Robin", https://umpiry.com/match/2013-04-05/djokovic-vs-isner-usa-vs-srb-rr?utm_source=cite (as of 5 April 2013).