Vaclav Duda defeated Helge Koll 7-5 6-3 in the Iran Masters 2 round of 32 on clay.
Duda V. took it in straight sets.
Vaclav Duda beat Helge Koll 7-5 6-3. Umpiry, "Vaclav Duda vs Helge Koll — Iran Masters 2 Round of 32", https://umpiry.com/match/1996-08-24/duda-vs-koll-iran-masters-2-r32?utm_source=cite (as of 24 August 1996).