[19] During the summer of 2016, Radford composed the 2016–17 free skate music for fellow Canadian skater and three-time world champion Patrick Chan.

On the same day, Red Lake held its second-ever Pride parade, with Radford walking along with then fiancé and current husband Luis Fenero, family and friends.

[13][2] He competed with Sarah Burke on the ISU Junior Grand Prix series in 2003 in the Czech Republic and 2004 in Hungary, placing 6th and 5th respectively.

At the 2005 Canadian Championships, he became trapped in an elevator just before he was scheduled to skate in the men's qualifying round but eventually escaped and was able to compete.

During the short program at the 2011 World Championships, Radford's nose was broken when Duhamel's elbow hit him on the descent from a triple twist, their first element – she opened up too early.

[36] Duhamel/Radford won bronze medals at their Grand Prix events, the 2011 Skate Canada and 2011 Trophée Eric Bompard.

The following season, Duhamel/Radford won silver at their Grand Prix events, the 2012 Skate Canada International and 2012 Trophée Eric Bompard.

Duhamel/Radford skated their short program to music composed by Radford as a tribute to his late coach Paul Wirtz.

[3][4] After finishing seventh at the 2014 Winter Olympics in Sochi,[17] they returned to the podium at the 2014 World Championships, where they scored personal bests in both the short program and the free skate on their way to a second bronze medal.

[43] At the inaugural 2014 Autumn Classic International held in Barrie, Ontario, they successfully executed the quad throw Salchow and won the event.

[44] They were chosen to compete at the 2014 Skate Canada International and 2014 NHK Trophy in the 2014–15 Grand Prix season.

[46] At the Grand Prix Final, they improved their personal best scores in the free skating and combined total.

[50] Turning to the Grand Prix series, they won gold medals at the 2015 Skate Canada International and 2015 NHK Trophy.

[52] Duhamel/Radford received the bronze medal at the Grand Prix Final in December 2016 before winning their sixth consecutive national title.

At the 2017 World Championships, held in March in Helsinki, Finland, Radford had trouble training due to a muscle spasm in his hip.

In the individual event, Duhamel/Radford ranked third in the short program and second in the free skate, finishing in third place and earning the bronze medal.

[63] In addition to participating with Duhamel in Stars on Ice tours as well as the "Thank You Canada" tour organized by Tessa Virtue and Scott Moir, Radford competed for two seasons on the CBC series Battle of the Blades,[64] which featured figure skaters partnered with ice hockey players to create figure skating programs.

[68] In April 2021, rumours began to circulate that Radford was training with fellow Battle of the Blades contestant Vanessa James, a skater of British, Canadian, and French citizenship who had previously competed at the elite level for France for most of her career.

[69] The following day, Skate Canada officially announced that James and Radford would compete as a pair team in the new season, to be coached by Julie Marcotte and Ian Connolly.

"[8] Duhamel expressed disappointment that Radford only belatedly informed her of his plans not to continue performing in ice shows with her.

[70] James/Radford made their competitive debut at the 2021 CS Autumn Classic International, where they won the silver medal.

"[73] At their second Grand Prix event, the 2021 Internationaux de France, the pair skated a clean short program to clear 70 points in that segment for the first time.

They opted to compete initially, placing fourth in the short program, and then withdrew, citing a need to "continue their training and preparation for the remainder of the competitive season.

[80] In the pairs event, James doubled her attempt at a triple toe loop, and they had movement on the side-by-side spins, resulting in them placing twelfth in the segment.

"[82] Days after the Olympics concluded, Vladimir Putin ordered an invasion of Ukraine, as a result of which the International Skating Union banned all Russian and Belarusian skaters from competing at the 2022 World Championships.

[84] In the free skate, they delivered a strong performance, but Radford underrotated a double toe loop and unexpectedly placed second in the segment, rising to the bronze medal position overall.