Kei Nishikori defeated Denis Istomin 6-7 7-5 6-4 6-3 in the JPN vs UZB round robin on hard.
Nishikori K. came through in four sets.
Nishikori K. and Istomin D. faced 2 of the same opponents in the last 12 months. Nishikori K. went 1–1 (50%) against them, Istomin D. 0–2 (0%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.
Kei Nishikori beat Denis Istomin 6-7 7-5 6-4 6-3. Umpiry, "Kei Nishikori vs Denis Istomin — JPN vs UZB Round Robin", https://umpiry.com/match/2011-07-08/istomin-vs-nishikori-jpn-vs-uzb-rr?utm_source=cite (as of 8 July 2011).