Glen Day was born on November 16th, 1965 in Alabama, USA. He turned pro in 1988 and has one tournament victory on the PGA Tour. He was a rookie on the Tour in 1994 and kept his card for the next ten years with consistent performances. His victory came in 1999 at the MCI Classic.

Glen Day is renowned for being one of the tours slowest players and has been nicknamed 'All Day'. In 2004 and 2005 he finished outside the top 125. He spent most of the 2006 season on the Nationwide Tour but won his PGA Tour card back via qualifying school.