Justyna Kowalczyk is a Polish cross country skier who has been competing since 2000. Kowalczyk is a double Olympic Champion and a double World Champion. She is also the only skier who won the Tour de Ski four times in a row and one of two female skiers, who won the FIS Cross-Country World Cup three times in a row. Kowalczyk holds the all-time record for the most wins in Tour de Ski with 14 competitions won and 29 podiums in total. She is a member of cross country ski department of AZS AWF Katowice and is coached by Aleksander Wierietielny. 

January 19th, 1983 in Limanowa (Age 41)