[3] As a student at Kitchener-Waterloo Collegiate and Vocational School, Mathers won the 2007 Ontario Schoolboy Championship, playing second for Andrew Flemming.

That season, they also played in the 2010 Canada Cup of Curling (going 0–5) and the 2011 Players' Championship, Mathers' first Grand Slam event, where they won just one game.

This team would find immediate success on the World Curling Tour, winning the 2011 AMJ Campbell Shorty Jenkins Classic which was their first event of the season.

The team played in the Grand Slams that season, losing in the final of the 2011 World Cup of Curling, failing to qualify at the 2011 BDO Canadian Open and winning the 2012 Players' Championship.

The team won the 2016 PEI Tankard, and represented Prince Edward Island at the 2016 Tim Hortons Brier, finishing with a 2–9 record.

He is married to fellow curler Lynn Kreviazuk,[6] and coached her rink, Team Jacqueline Harrison at the 2021 Canadian Olympic Curling Trials.

Mathers worked for Fox Meadows Golf Club for the 10 months he was there, living in Charlottetown, Prince Edward Island.