[11] Two years later, LeDuc returned to SST for the Grand Prix of Long Beach and X Games Austin 2015.

[14] At the X Games, he set the second-fastest time in qualifying, followed by finishing runner-up in his heat and ninth in the main.

[15][16] In 2016, he ran the SST weekend at the Sand Sports Super Show; after finishing seventh in the Friday night race, he was involved in a crash in the Saturday heat race that resulted in Tyler McQuarrie flipping onto his roof, which was followed by placing on the podium in the feature in third.

The 2014 season saw him win 11 of 14 and receive LOORRS Driver of the Year honors; he also won the TORC World Championship Ring and AMSOIL Cup.

LeDuc won the pole position after setting the fastest qualifying time and Post finished fifth.

[6][27] Low entry numbers forced LOORRS to cancel the 2020 Pro 4 season, which prompted LeDuc to join the newly formed Championship Off-Road series in the same class.

[28] He won five of ten races, including the final weekend at Crandon, and the COR championship for his seventh title in Pro 4.

[4] Kyle proposed to Amber prior to a 2008 CORR Pro 4 race at Las Vegas International Off-Road Raceway, where he eventually finished second.

[32] In November 2022, LeDuc was diagnosed with stage IV head and neck cancer, and was sidelined from competing in the 2023 Championship Off-Road season.