David Nalbandian defeated John Isner 6-4 7-6 in the Auckland quarter-final on hard. The upset overturned the form book — John Isner came in defending the title. David Nalbandian extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-01-16 | Australian Open | R64 | hard | John Isner | 4-6 6-3 2-6 7-6(5) 10-8 |
| 2010-08-15 | Cincinnati Masters | R32 | hard | David Nalbandian | 4-5 RET |
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 (78 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About