Dmitriy Koch defeated Nir Welgreen 6-2 6-0 in the Israel 1 3 round of 16 on hard. The upset overturned the form book — Nir Welgreen came in leading the head-to-head 1–0. Dmitriy Koch claimed a first win over Nir Welgreen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-11-12 | Israel 1 4 | R16 | hard | Nir Welgreen | 3-6 7-5 6-2 |