Eriksson's longest-running mixed doubles partnership is with Anna Hasselborg, with whom he began curling at Härnosands gymnasium. The pair went on to compete in the Swedish Mixed Doubles Curling Championship four times, winning the event each time that they entered (2013, 2016, 2017, and 2019). Despite Hasselborg and Eriksson's victories, longtime mixed doubles specialists Per Noreen and Camilla Noreen were selected to represent Sweden in the World Mixed Doubles Curling Championships in 2016 and 2017, but unfortunately were unable to earn Team Sweden a spot in the Olympic mixed doubles event. In 2019, however, Hasselborg and Eriksson were selected to represent Sweden in the 2019 World Mixed Doubles Curling Championship, where they won the gold medal over Team Canada in their championship debut. In 2019, they also won their first career mixed doubles tour event at the MadTown DoubleDown mixed doubles tournament.