Answer
Piotr Żyła and Kamil Stoch together held the Polish record for ski flight length from 26 January 2013 to 21 March 2015. Żyła achieved the record of 251 metres at the Ski Flying World Championships in Val di Fiemme on 26 January 2013. Stoch then improved the record to 253 metres at the 2014 Winter Olympics in Sochi on 21 March 2014.