Djalmar Sistermans defeated David Caldwell 6-3 7-5 in the Greece 4 Masters 4 round of 32 on hard.
Sistermans D. took it in straight sets.
Djalmar Sistermans beat David Caldwell 6-3 7-5. Umpiry, "Djalmar Sistermans vs David Caldwell — Greece 4 Masters 4 Round of 32", https://umpiry.com/match/1997-10-25/caldwell-vs-sistermans-greece-4-masters-4-r32?utm_source=cite (as of 25 October 1997).