Sebastian Baez defeated Jaume Munar 6-4, 6-4 in a round-robin match at the United Cup ATP 250 on hard court on 2 January 2026. Baez controlled both sets with consistent play, breaking Munar's serve twice in each to secure a comfortable victory. The Argentine's performance demonstrated solid form early in the season as he progressed through the group stage. Baez's win positions him well in the round-robin standings ahead of his remaining matches.