ATP - Umag 1R continued

First round continued in Umag.

Rain interrupted.

2023 Plava Laguna Croatia Open Umag, an ATP 250 tournament, on Clay, Umag, Croatia, 24-30 July 2023.

2022 champion (not defending):

Jannik Sinner (2) who defeated Carlos Alcaraz (1) 6-7(5) 6-1 6-1

First round results:

- Matteo Arnaldi (7) defeated qualifier Jesper de Jong 6-3 6-2

- Zsombor Piros defeated Christopher O’Connell (5) 6-3 6-4

- Jaume Munar led Albert Ramos-Vinolas (8) 5–2 when rain stopped play 

- Fabian Marozsan led Juan Manual Cerundolo 6-3 5-2 when rain stopped play 

- Alexander Shevchenko led Marco Cecchinato 5-3 when rain stopped play