With his current skating partner, Sophia Schaller, he is the 2023 Trophée Métropole Nice bronze medalist and a three-time Austrian national champion (2023–25).

He competed in singles for five seasons, placing third at the Austrian Junior National Championships in 2014, 2016, and 2017, before opting to transition to pair skating.

Mayr teamed up with his first pairs partner, American skater Sara Jane Dana, in advance of the 2018–19 season.

Misfortune continued into 2021 as Choinard tore her meniscus during a training session in preparation for their competitive debut in September, effectively ending their season before it began.

[1] The team chose to part ways months later, with Mayr seeking a new partner and Choinard transitioning to synchronized skating.

It was also announced that the duo would also make trips to Oakville, Ontario, Canada to work with Canadian pair coaches, Bruno Marcotte and Brian Shales.

They would subsequently win a bronze medal at the 2023 Trophée Métropole Nice Côte d'Azur and place ninth at the 2023 Warsaw Cup.