Martin Blackman defeated Martin Schaffl 4-6 6-2 6-4 in the Caribbean 1 Masters 2 round of 32 on clay.
Blackman M. came through in three sets.
Martin Blackman beat Martin Schaffl 4-6 6-2 6-4. Umpiry, "Martin Blackman vs Martin Schaffl — Caribbean 1 Masters 2 Round of 32", https://umpiry.com/match/1991-03-30/blackman-vs-schaffl-caribbean-1-masters-2-r32?utm_source=cite (as of 30 March 1991).