Geoff Gay played half-a-dozen times for Exeter City during the 1976/77 promotion season when on loan from Bolton Wanderers and later played for Wigan Athletic and Southport. He finished his first game for the Grecians as an emergency goalkeeper after Richard Key had broken an ankle.A former apprentice with Bolton Wanderers, he signed a full contract in January 1975 but never made a first team league outing.
Joining Exeter City on loan for the second-half of the 1976/77 promotion season, he made his debut along with Lee Roberts at Crewe Alexandra on 11 March 1977 playing in the right-back position. Subsequently, with no designated substitute goalkeepers at the time, he was required to replace the injured Richard Key between the sticks when the 'keeper suffered a broken ankle.
Staying to help the Grecians win promotion, he returned to Burnden Park only to be given a free transfer. and joined Southport in August 1977 where he was an almost ever present durng his one season stay at Haig Avenue. He moved to Wigan Athletic in July 1978 before appearing for Macclesfield Town, Bangor City, Droylsden, Mossley, Chorley and Horwich RMI. Away from football, he worked for the employment service.