The bett1HULKS Championship, beginning 19 October, was the second of two back-to-back ATP 250 tournaments in Cologne, Germany that had been added to the 2020 provisional schedule, as tennis continued its return following suspension of the season due to the COVID-19 pandemic.
The bett1HULKS Indoors was held one week earlier in Cologne, the week of 12 October. The two other ATP 250 events added to the calendar were in Sardinia, Italy (clay) and Nur-Sultan (Kazakhstan, Indoor Hard). All four events were issued as single-year licenses for 2020.
- Past Champions
- 2021 Seeds
- Points & Prize Money