In an eight-year partnership with Kirsten Moore-Towers from 2014 to 2022, he achieved distinction both domestically and internationally, winning three Canadian national titles (2019–20, 2022).

In the 2011–12 season, Purdy/Marinaro won their first JGP medal — bronze in Latvia — and placed fifth at the 2012 World Junior Championships in Minsk.

"[8] Having received two 2014–15 Grand Prix assignments,[9] Moore-Towers/Marinaro placed sixth at the 2014 Skate Canada International and seventh at the 2014 Trophée Éric Bompard.

Competing in the Grand Prix series, they won bronze at the 2015 Skate Canada International and placed seventh at the 2015 Rostelecom Cup.

During the short program at the Canadian Nationals, the two clipped blades as they began the twist lift, resulting in a hard fall.

On March 11, Moore-Towers/Marinaro were added to Canada's team for the 2016 World Championships after Julianne Séguin / Charlie Bilodeau withdrew due to injury.

Moore-Towers sustained a concussion during training in Montreal on August 3, 2016; as the pair practiced a jump combination, she fell in Marinaro's path, and he collided with her head.

On the Grand Prix circuit, they placed sixth at the 2017 Skate America event and won bronze at the 2017 Cup of China.

Their season ended dramatically at the 2018 World Championships, where a disastrous short program from Séguin and Bilodeau resulted in Moore-Towers and Marinaro being the only Canadian pairs team to qualify for the free skate, having placed tenth in the short program despite Moore-Towers having an ankle injury that had impeded training for the World Championships.

Competing on the Grand Prix, Moore-Towers/Marinaro won the bronze medal at the 2018 Skate Canada International, only 0.15 points behind silver medallists Peng Cheng / Jin Yang of China.

[20] Competing at the 2019 World Championships, Moore-Towers/Marinaro placed fifth in the short program, despite Marinaro putting a hand down on their side-by-side jump.

They dedicated much of the summer training period to reworking their technique on the triple twist, hoping to achieve greater amplitude.

[26] In the free skate, Marinaro made errors on both side-by-side jumps, but the team remained in second place, winning their first Grand Prix silver.

[28] They were second in the free skate as well, taking their second silver medal of the season and qualifying to the Grand Prix Final for the first time in their partnership.

[29] Competing at the Grand Prix Final in Torino, they were sixth of the six teams in the short program after Moore-Towers fell on their throw and Marinaro stepped out of his side-by-side jump.

[31] Entering the 2020 Canadian Championships as the favourites to defend their title, they placed first in the short program despite Moore-Towers stepping out of her triple toe loop jump.

[34] They struggled in the free skate, with Moore-Towers singling their intended triple Salchow for the second straight competition and Marinaro falling in a transition.

[39] Moore-Towers/Marinaro competed for the first time that season at the Skate Canada Challenge, the main qualifying competition for the national championships, which was held virtually across several hub locations to minimize gatherings of athletes and officials.

[41] They were fifth in the free skate, rising to sixth place overall, despite a minor error by Moore-Towers touched down on a throw.

[42] During the summer of 2021, Moore-Towers began to suffer from panic attacks in training, relating to attempting the triple twist lift.

[47] After a disappointing fall season, Moore-Towers/Marinaro sought to defend their national title at the 2022 Canadian Championships, held without an audience in Ottawa due to restrictions prompted by the Omicron variant.

[52] In the pairs event, Moore-Towers/Marinaro had a disastrous short program when both fell attempting their throw jump, and they finished thirteenth in the segment.

However, Moore-Towers' season-long struggle with panic attacks came to a head, and she opted to withdraw from the event, citing American gymnast Simone Biles as inspiration.