Oscar Martinez Dieguez defeated Juan Sebastian Martinez Nunez 6-3 6-4 in the Spain 5 Masters 4 round of 32 on clay. The upset overturned the form book — Juan Sebastian Martinez Nunez came in leading the head-to-head 1–0, but Oscar Martinez Dieguez had been the form player, winning 6 of their last 10 on clay. Oscar Martinez Dieguez claimed a first win over Juan Sebastian Martinez Nunez in two meetings, narrowing the head-to-head to 1–1.
Martinez Dieguez O. took it in straight sets.