Djalmar Sistermans defeated William Herbert 6-1 6-0 in the USA 2 Masters 4 round of 32 on clay.
Sistermans D. took it in straight sets.
Djalmar Sistermans beat William Herbert 6-1 6-0. Umpiry, "Djalmar Sistermans vs William Herbert — USA 2 Masters 4 Round of 32", https://umpiry.com/match/1997-05-16/herbert-vs-sistermans-usa-2-masters-4-r32?utm_source=cite (as of 16 May 1997).