Santiago Ventura defeated Oscar Martinez Dieguez 6-7 6-3 6-1 in the Spain 4 Masters 2 semi-final on clay. The result followed the form book — Santiago Ventura came in leading the head-to-head 1–0. Santiago Ventura extended the head-to-head to 2–0.
Ventura S. came through in three sets.
Santiago Ventura beat Oscar Martinez Dieguez 6-7 6-3 6-1. Umpiry, "Santiago Ventura vs Oscar Martinez Dieguez — Spain 4 Masters 2 Semi-final", https://umpiry.com/match/1999-04-09/dieguez-vs-ventura-spain-4-masters-2-sf?utm_source=cite (as of 9 April 1999).