1932–1937

Plymouth's original home was Pennycross Stadium. As the Plymouth Tigers they competed in the first National League season in the 1932 Speedway National League.^[3] The Tigers became the Panthers for the 1936 season and the stadium was used in 1937.

1947–1954

The stadium re-opened in 1947 when the Devils raced in the 1947 Speedway National League Division Three. Apart from short spells in the Second Division the team operated at this level until 1954. In 1952, the team achieved their first major success, winning the Division Three section of the National Trophy. They defeated Rayleigh Rockets in the final. ^[4] After another season in the Southern League (1953) they withdrew from the 1954 Speedway National League Division Two.^[5][6]

1961–1969

The track re-opened for a couple of years in the 1961 Provincial Speedway League (as the Plymouth Bulldogs) and 1962. It re-opened in 1968 and had spells in the British League Division Two.

2006–present

Temporary planning permission was awarded for a new speedway track in 2006,^[7] but in August 2007 the club was granted full planning permission.^[8] During the 2006 Speedway Conference League the club finished first in the regular season table but lost in the play off final. Two years later in 2008 they repeated the feat of topping the table but once again lost in the playoffs. They did however gain consolation when winning the Conference League Knockout Cup. One year later they reached the play off final during the 2009 National League speedway season.

In 2011, the club moved up to division 2 and in 2014 they ran a junior side called the Devon Demons, previously the Demons had been the junior side for the Exeter Falcons.^[9] They stayed in division 2 until 2017 when they dropped back down to division 3.

In 2019, they changed their name from the Devils to the Gladiators and in 2021 competed in the second division again, called the SGB Championship. In 2022, the club also ran a NDL side called the Centurions.^[10]