Sunil Kumar defeated Lester Cook 7-6 6-4 in the India F1 round of 16 on hard. The upset overturned the form book — Lester Cook came in leading the head-to-head 1–0. Sunil Kumar claimed a first win over Lester Cook in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-06-16 | USA F13 | R32 | hard | Lester Cook | 6-4 6-4 |