On 27 February, a 23-year-old Klosterhalfen set a European record in the indoor 5000 m event. The former area record was 14:47.35 set by Gabriela Szabo in 1999. Klosterhalfen won the competition at the Boston University Last Chance Invitational meet in 14:30.79, which placed her fourth in the world all-time ranking. Her winning time marked a 45 seconds improvement on her previous personal best set in Boston in 2019. Her final 200 m split was recorded with 31.6 seconds. Klosterhalfen's split times:
