Donald Young defeated John Isner 7-6 3-6 7-6 in the Memphis quarter-final on hard. The upset overturned the form book — John Isner came in leading the head-to-head 3–0. Donald Young claimed a first win over John Isner in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-03-19 | Miami Masters | R64 | hard | John Isner | 6-7(5) 6-3 6-4 |
| 2012-02-20 | Memphis | R16 | hard | John Isner | 7-6(3) 6-4 |
| 2008-08-10 | Washington | R16 | hard | John Isner | 6-4 7-6(4) |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.