Martin Damm Sr defeated Ivo Heuberger 7-6 5-7 7-6 in the SUI vs CZE round robin on carpet.
Damm Sr M. came through in three sets.
Martin Damm Sr beat Ivo Heuberger 7-6 5-7 7-6. Umpiry, "Martin Damm Sr vs Ivo Heuberger — SUI vs CZE Round Robin", https://umpiry.com/match/1998-04-03/heuberger-vs-sr-sui-vs-cze-rr?utm_source=cite (as of 3 April 1998).