Former trainee Matt Lock appeared in a handful of league and cup games for Exeter City in 2002 before coaching in the United States. He later played for Team Bath and several clubs in the South East as he built a coaching and fitness career within the broader sport industry. 

After joining Exeter City as a trainee in 2000, Matt became a professional in August 2002 and made his league debut as a substitute against Rushden & Diamonds on 12 October 2002. His only league start was against Darlington two weeks later and, on 26 November 2002, he scored against Forest Green in the FA Cup. Matt’s final game for the first-team was in the next round of the FA Cup, again against Rushden & Diamonds, and he was released in May 2003. 

While at City, Matt completed a level 2 coaching award and worked with City’s women’s team. He then coached in New Jersey for a year before commencing a sports degree at Bath University in 2004. Whilst studying Matt played at various times for Team Bath, Tiverton Town and Mangotsfield United. Appearing over a hundred times for Team Bath he gained UEFA coaching qualifications and worked closely with future Exeter City assistant manager Andy Tilson.

After graduating Matt took on various coaching and fitness roles moving between Essex, Gloucestershire and Australia whilst continuing to play football on a part-time basis for Chelmsford City (several spells), Gloucester City, Bunbury Forum Force (Western Australia), Dover Athletic, Maldon & Tiptree, Bowers & Pitsea and Coggeshall Town. He was also player-coach of Canvey Island during the 2019/20 season.

As of 2023, Matt was athlete services manager for Switch the Play Foundation and a co-founder of Outliers Wellbeing whilst remaining in football as manager of Worcester City Women.