Guillermo Olaso defeated Andrea Arnaboldi 2-6 7-5 6-4 in the Croatia F11 round of 32 on clay. The upset overturned the form book — Andrea Arnaboldi came in leading the head-to-head 1–0. Guillermo Olaso claimed a first win over Andrea Arnaboldi in two meetings, levelling the head-to-head at 1–1.
Olaso G. came through in three sets.
Guillermo Olaso beat Andrea Arnaboldi 2-6 7-5 6-4. Umpiry, "Guillermo Olaso vs Andrea Arnaboldi — Croatia F11 Round of 32", https://umpiry.com/match/2008-10-20/arnaboldi-vs-olaso-croatia-f11-r32?utm_source=cite (as of 20 October 2008).