[19][20] He won the Girobio, finished fourth at the Tour of Utah, and placed tenth at the USA Pro Cycling Challenge.

[36] During the COVID-19 pandemic-affected 2020 season, Dombrowski's best general classification result was 26th at the Settimana Internazionale di Coppi e Bartali,[37] while he finished 43rd at the Giro d'Italia.

[38] At the 2021 Giro d'Italia, Dombrowski was part of a 25-rider breakaway on a rain-soaked fourth stage; he went clear of the field on the final climb, and soloed to a 13-second victory over Alessandro De Marchi.

[39][40] The following day, Dombrowski crashed into a race marshal manning a traffic island in the last 4 kilometres (2.5 miles) of the stage to Cattolica.

[41][42] At the Vuelta a España later in the season, Dombrowski again featured in a first-week breakaway, this time on the third stage to a summit finish at Picón Blanco in the Province of Burgos.