Matteo Colla defeated Christopher Kas 6-1 2-6 7-5 in the Italy 4 4 semi-final on clay. The upset overturned the form book — Christopher Kas came in leading the head-to-head 2–1. Matteo Colla narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-05-12 | Italy F7 | R16 | clay | Matteo Colla | 6-1 7-6(7) |
| 2002-05-27 | Italy 3 1 | QF | clay | Christopher Kas | 7-6(6) 3-0 |
| 2000-09-18 | Italy F11 | R16 | hard | Christopher Kas | 7-5 5-7 6-4 |