Mark Boyce played for Norwich's reserves at Northampton on 25th January 1999. At the time, he was a trainee with Watford but was freed at the end of the 1998/99 season. He joined Conference side Hayes but moved on to Kingstonian (also of the Conference) in the summer of 2000. In September 2001, Mark was made available for loan suggesting his time with Kingstonian was limited.

He joined Chesham United at the end of November 2001. A whole-scale clearout at Chesham in May 2002 saw Lee released along with the majority of the first team. Mark moved to fellow Ryman Leaguers Enfield before joining Maidenhead at the end of September 2002.

Impressing Yeovil's coaches and scouts during the summer of 2003, he signed for the Division Three newboys in October 2003 on a non-contract basis to enable Yeovil to field him and watch his progress.

After returning to London to spent some time with Hampton & Richmond Borough, Mark signed for Nationwide Conference South side Weymouth in mid-November 2004.

Mark played two full international games in the summer of 2004 for Barbados - .a friendly against Northern Ireland and a World Cup qualifier aganist St Kitts

Mark seems to have returned to Maidenhead, from whom he joined Hayes in early 2006

In March 2007, Mark was loaned to Uxbridge