Juan Albert Viloca Puig defeated Alex Calatrava 6-4 6-2 in the Doha qualifying round of 32 on hard. The upset overturned the form book — Alex Calatrava came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Viloca Puig J. took it in straight sets.
Hard: Viloca Puig J. leads 1–0 · Clay: Calatrava A. leads 2–1
Juan Albert Viloca Puig beat Alex Calatrava 6-4 6-2. Umpiry, "Juan Albert Viloca Puig vs Alex Calatrava — Doha Qualifying Round of 32", https://umpiry.com/match/2004-01-05/calatrava-vs-puig-doha-q32?utm_source=cite (as of 5 January 2004).