Duje Kekez defeated Sebastian Prechtel 6-1 6-1 in the M15 Sarajevo 1 round of 32 on clay. The upset overturned the form book — Sebastian Prechtel came in leading the head-to-head 2–0, but Duje Kekez had been the form player, winning 6 of their last 10 on clay. Duje Kekez claimed a first win over Sebastian Prechtel in three meetings, narrowing the head-to-head to 2–1.
Kekez D. took it in straight sets.
Duje Kekez beat Sebastian Prechtel 6-1 6-1. Umpiry, "Duje Kekez vs Sebastian Prechtel — M15 Sarajevo 1 Round of 32", https://umpiry.com/match/2021-06-02/kekez-vs-prechtel-m15-sarajevo-1-r32?utm_source=cite (as of 2 June 2021).