Marius Zay defeated Artemon Apostu Efremov 3-6 6-1 7-5 in the Romania F7 round of 16 on clay. The upset overturned the form book — Artemon Apostu Efremov came in leading the head-to-head 1–0. Marius Zay claimed a first win over Artemon Apostu Efremov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-26 | Romania F13 | QF | clay | Artemon Apostu Efremov | 6-2 4-6 6-2 |