Ralph Grambow defeated Philipp Piyamongkol 6-7 6-3 6-3 in the Canada F1 round of 32 on hard. Ralph Grambow extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-10-03 | Germany 1 Satellite 2 | R16 | carpet | Ralph Grambow | 7-6(6) 6-4 |
| 2005-10-03 | Germany 1 Satellite 3 | R32 | carpet | Philipp Piyamongkol | 6-4 6-2 |