Jordi Mas defeated Juan Balcells 6-3 6-3 in the Spain 5 Masters 4 qualifying round on clay. The upset overturned the form book — Juan Balcells came in leading the head-to-head 1–0. Jordi Mas claimed a first win over Juan Balcells in two meetings, levelling the head-to-head at 1–1.
Mas J. took it in straight sets.
Jordi Mas beat Juan Balcells 6-3 6-3. Umpiry, "Jordi Mas vs Juan Balcells — Spain 5 Masters 4 Qualifying Round", https://umpiry.com/match/1994-06-10/balcells-vs-mas-spain-5-masters-4-qf?utm_source=cite (as of 10 June 1994).