Christian Groh defeated Dusan Mihailovic 7-6 6-7 7-5 in the Bulgaria 1 2 round of 32 on clay. The upset overturned the form book — Dusan Mihailovic came in leading the head-to-head 1–0. Christian Groh claimed a first win over Dusan Mihailovic in two meetings, levelling the head-to-head at 1–1.
Groh C. came through in three sets.
Christian Groh beat Dusan Mihailovic 7-6(6) 6-7(4) 7-5. Umpiry, "Christian Groh vs Dusan Mihailovic — Bulgaria 1 2 Round of 32", https://umpiry.com/match/2003-05-05/groh-vs-mihailovic-bulgaria-1-2-r32?utm_source=cite (as of 5 May 2003).