After having learnt many other styles of martial art (including karate, ninjitsu, boxing and freestyle kempo) Alan Keddle, the director of Keddle's Gym, began to study Muay Thai in 1991 and quickly began fighting and winning. Due to his experience in other styles Alan improved rapidly quickly and eventually took over what was called the Lumpini Gym from Sean Toomey in 1994. In 1997 the gym was renamed as Keddle's Thai Boxing, the name Lumpini Gym being given back to Sean Toomey on his return to teaching. As the 1990s progressed the name 'Keddle' became synonymous with Muay Thai in Great Britain and in many other parts of the world both through the many title victories and the number of fighters competing.

Today at Keddle's Gym (a.k.a. Orpington Combat Sports) you can find the home of Keddle's Thai Boxing, Orpington Amateur Boxing Club, Submission Fight UK, and Freestyle Ju Jitsu UK. In the year 2000 the other combat styles were introduced and the club is now known as Keddle's Gym or Orpington Combat Sports instead of Keddle's Thai Boxing.

Details of each martial art style taught at the gym and its origin can be found in the Fighting Arts section.