The bett1HULKS Indoors, beginning 12 October, is the first of two back-to-back ATP 250 tournaments in Cologne, Germany was added to the 2020 provisional schedule, as tennis continues its return following suspension of the season due to the COVID-19 pandemic. The bett1HULKS Championships immediately follows in the week of 19 October. The two other ATP 250 events added to the calendar are in Sardinia, Italy (clay) and Nur-Sultan (Kazakhstan, Indoor Hard). All four events have been issued as single-year licenses for 2020.