Claim: Kornelia Kubińska participated in the World Championships in 2009 at the age of 29, in the Individual 10 km (with a score of 29), the 15 km skiathlon (with a score of 39), the 30 km mass start (with a score of 20) and the sprint (with a score of 66).
Evidence: (1985-08-03) August 3, 1985 (age 35)
Marklowice, Polish People's Republic