The 2020 Bett1Hulks Championship was an ATP tournament organized for male professional tennis players, held in Cologne, Germany, in mid-October 2020 on indoor hard courts. It was primarily organized due to the cancellation of many tournaments during the 2020 season due to the COVID-19 pandemic. It was the first and only edition of the tournament and it took place at the Lanxess Arena in Cologne, Germany, from October 19 through 25, 2020.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Alexander Zverev | 7 | 1 | ||
 Argentina | Diego Schwartzman | 8 | 2 | |
 Canada | Denis Shapovalov | 12 | 3 | |
 Spain | ||||
| Canada | Félix Auger-Aliassime | 22 | 5 | |
 Poland | ||||
| Jan-Lennard Struff | 32 | 7 | ||
 France | Adrian Mannarino | 38 | 8 | |
| Marin Čilić | 40 | 9 |
The following players received wildcards into the singles main draw:
The following players received entry using a special exempt:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Roberto Bautista Agut → replaced by 
Sumit Nagal Hubert Hurkacz → replaced by 
James Duckworth
Filip Krajinović → replaced by 
Yoshihito Nishioka
Andy Murray → replaced by Alexei Popyrin Gaël Monfils → replaced by 
Steve Johnson Benoît Paire → replaced by Gilles Simon Guido Pella → replaced by Tennys Sandgren Danilo Petrović → replaced by Oscar Otte Sam Querrey → replaced by Fernando Verdasco
Lorenzo Sonego → replaced by Jordan Thompson Alejandro Davidovich Fokina| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Poland | Łukasz Kubot |  Brazil | Marcelo Melo | 24 | 1 | |
 Austria | Oliver Marach | Mate Pavić | 32 | 2 | ||
| Kevin Krawietz | Andreas Mies | 37 | 3 | |||
| Austria | Jürgen Melzer | France | Édouard Roger-Vasselin | 55 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2020 Bett1Hulks Championship – Singles.
Diego Schwartzman, 6–2, 6–1See main article: 2020 Bett1Hulks Championship – Doubles.
Ben McLachlan def. Kevin Krawietz / Andreas Mies, 6–2, 6–4
