Ivan Navarro defeated Oscar Martinez Dieguez 7-5 7-5 in the Spain 4 4 qualifying round on clay. The upset overturned the form book — Oscar Martinez Dieguez came in leading the head-to-head 2–1, but Ivan Navarro had been the form player, winning 4 of their last 6 on clay. That levelled the head-to-head at 2–2.
Navarro I. took it in straight sets.
Ivan Navarro beat Oscar Martinez Dieguez 7-5 7-5. Umpiry, "Ivan Navarro vs Oscar Martinez Dieguez — Spain 4 4 Qualifying Round", https://umpiry.com/match/2000-04-07/dieguez-vs-navarro-spain-4-4-qf?utm_source=cite (as of 7 April 2000).