Ryan Harrison advanced when Denis Istomin retired 7-6 4-2 in the Brisbane quarter-final. Ryan Harrison extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-06-18 | Eastbourne | QF | grass | Ryan Harrison | 7-6(5) 6-4 |
| 2010-02-08 | San Jose | R32 | hard | Denis Istomin | 6-2 7-5 |
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 (120 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About