[2] Following the 2016-2017 season, Spiegl turned professional and performed for Willy Bietak Productions on Royal Caribbean cruise ships in ice shows from 2017 to 2019.

[6] Spiegl also began research at the University of GIH, Stockholm, Sweden, focusing on landing impacts and injury prevention for figure skaters.

[7] In 2019, Spiegl and his colleagues at GIH published their initial findings in the Footwear Science journal, detailing the effects of different figure skating boots on landing impact loads.

They also developed and tested a prototype blade with integrated shock absorbers with the aim of reducing forces that contribute to the frequent overuse injuries seen in figure skaters.

[11] CS: Challenger Series; JGP: Junior Grand Prix Media related to Ondrej Spiegl at Wikimedia Commons