Michal Chmela defeated Valentin Sanon 6-4 6-4 6-7 1-6 6-4 in the CIV vs POL round robin on hard.
Chmela M. came through in five sets.
Michal Chmela beat Valentin Sanon 6-4 6-4 6-7 1-6 6-4. Umpiry, "Michal Chmela vs Valentin Sanon — CIV vs POL Round Robin", https://umpiry.com/match/1999-07-16/chmela-vs-sanon-civ-vs-pol-rr?utm_source=cite (as of 16 July 1999).