Participants perform acrobatic skills on an apparatus smaller than a regular competition trampoline.

DMT can be sourced back to 1970 when its inventors Robert F Bollinger and George Nissen combined two Mini trampolines with a small table and mat to cover in between.

Later Robert F Bollinger combined the two Mini trampolines to create one 430 cm long Double Mini Trampoline and also designed the rules for competition and terms such as the mounter and spotter passes and he established its own difficulty system roughly based on the system used for diving.

[3][8] The DMT as we see it today is wider than the one Robert F Bollinger and George Nissen first created, and the change came mid 1990 when Horst Kunze, then President of the FIG Trampoline Technical Committee, asked Eurotramp Trampoline company if they could produce a DMT with a wider frame.

This resulted in a wider DMT with a bed of 92 cm, which Horst Kunze states gave a real boost to the discipline.

[2] The difficulty in double mini is based upon a bonus system, where the number of rotation and twists are multiplied and then the position is added.

Example: Full-In Half-Out (8 2 1) has a total of 8 1/4-rotations corresponding to the first 8 then it has 2 1/2-twists in the first somersault corresponding to the 2 and 1 1/2-twists the second somersault corresponding to the 1[2] Result are correct according to FIG's database as well as official records from the competition[8] **Bianca Budler and Bianca Zoonekynd is the same person Result are correct according to FIG's database as well as official records from the competition[8]