Sock J. came through in three sets.
Sock J. and Young D. faced 2 of the same opponents in the last 12 months. Sock J. went 1–1 (50%) against them, Young D. 1–1 (50%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.
Jack Sock beat Donald Young 5-7 6-4 6-2. Umpiry, "Jack Sock vs Donald Young — Basel Quarter-final", https://umpiry.com/match/2015-10-30/sock-vs-young-basel-qf?utm_source=cite (as of 30 October 2015).