[2][3] He was the first British skier to win a Europa Cup in men's aerial skiing at Airolo, Switzerland, in March 2015.

[9] After the 2018 Olympics, Wallace took a two-year break from freestyle skiing, returning in October 2020, self-funding until the discipline finally received funding from UK Sport in January 2022.

[10] He almost missed the FIS Freestyle Ski and Snowboarding World Championships 2021 in Almaty, Kazakhstan due to a visa issue, but was able to compete.

[15] Wallace's mother Jilly (née Curry) competed at the 1992 and 1994 Winter Olympics and won 29 FIS World Cup medals, which at the time was more than any other British skier or snowboarder.

[18] To fund his skiing career, Wallace works as a Sports Management Agent, representing several Olympic and Paralympic athletes.