Jack Sock defeated Ryan Harrison 7-6 4-6 6-1 in the Auckland round of 16 on hard. The upset overturned the form book — Ryan Harrison came in leading the head-to-head 1–0. Jack Sock claimed a first win over Ryan Harrison in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-02-20 | Memphis | R32 | hard | Ryan Harrison | 6-3 2-6 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 (199 vs 172). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About