Ivo Karlovic defeated Michael Russell 7-6 6-4 in the New Haven round of 32 on hard. The upset overturned the form book — Michael Russell came in leading the head-to-head 2–0. Ivo Karlovic claimed a first win over Michael Russell in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-07-31 | Washington | R64 | hard | Michael Russell | 6-4 7-6(4) |
| 2011-02-14 | Memphis | R32 | hard | Michael Russell | 6-1 7-6(1) |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.