ATP - Munich 1R complete

First round completed in Munich.

2021 BMW Open - an ATP 250 tournament, on Clay, in Munich, Germany, 26 April - 2 May 2021.

Event not held last year due to COVID-19.

2019 champion (not defending):

Cristian Garin who defeated Matteo Berrettini 6-1 3-6 7-6(1)

The following players withdrew after the main draw was published:

- Soonwoo Kwon was replaced by lucky loser Andrej Martin due to a shoulder injury 

- Stefano Travaglia was replaced by lucky loser Ricardas Berankis due to a hand injury

- Third seed Aslan Karatsev was replaced by lucky loser Norbert Gombos due to fatigue 

Gombos received the first round bye originally given to Karatsev.

First round results:

- Qualifier Mackenzie McDonald defeated Dusan Lajovic (6) 6-4 6-4

- Wildcard Yannick Hanfmann defeated Taro Daniel 6-3 3-6 7-6(5)

- Dominik Koepfer defeated wildcard Philipp Kohlschreiber 4-6 6-4 6-3

- Jan-Lennard Struff (7) defeated lucky loser Andrej Martin 6-4 6-3

- Nikoloz Basilashvili (5) defeated Thiago Monteiro 6-2 6-3

- Qualifier Daniel Elahi Galan defeated Sebastian Korda 6-1 7-6(7)

- Pablo Cuevas defeated Tennys Sandgren 7-6(4) 0-6 6-1