ATP - Hamburg 1R start

First round commenced in Hamburg.

2021 Hamburg European Open - an ATP 500 tournament, on Clay, in Hamburg, Germany, 12-18 July 2021.

Event held last year from 20-27 September 2020 due to COVID-19.

2020 champion (not defending):

Andrey Rublev (5) who defeated Stefanos Tsitsipas (2) 6-4 3-6 7-5

The following players withdrew after the main draw was published:

Pablo Andujar replaced by lucky loser Sumit Nagal 

Aljaz Bedene replaced by lucky loser Sébastian Baez 

First round results:

- Wildcard Philipp Kohlschreiber defeated Jaume Munar 7-6(5) 6-4

- Lucky loser Sébastian Baez defeated Corentin Moutet 6-1 6-2

- Qualifier Thiago Seyboth Wild defeated wildcard Nicola Kuhn 1-6 6-1 6-2

- Benoit Paire (8) defeated Ricardas Berankis 6-6 (retired)