Santiago Ventura defeated Mark Joachim 6-4 6-4 in the Spain 4 Masters 3 qualifying round on clay. The upset overturned the form book — Mark Joachim came in leading the head-to-head 2–0. Santiago Ventura claimed a first win over Mark Joachim in three meetings, narrowing the head-to-head to 2–1.
Ventura S. took it in straight sets.
Santiago Ventura beat Mark Joachim 6-4 6-4. Umpiry, "Santiago Ventura vs Mark Joachim — Spain 4 Masters 3 Qualifying Round", https://umpiry.com/match/1999-04-09/joachim-vs-ventura-spain-4-masters-3-qf?utm_source=cite (as of 9 April 1999).