Each Trampoline routine consists of 10 elements. Athletes are obliged to submit the “competition card” 48 hours prior to the commencement of the event, in which they state the exercises they intend to present.
Athletes have to begin their routine one minute after the signal is given by the Chair of Judges Panel, otherwise points will be deducted. The starting order of the athletes in the qualification event is determined by a draw, which takes place four months prior to the games and with the responsibility of the International Gymnastics Federation.
In the finals, the starting order is determined based on the standings from the qualification rounds. The athlete with the lowest score presents his/her routine first.
The event consisted of two phases: the qualifications and the finals that took place on one day for women and one for men, in the following way:
Qualifications: The athletes performed two routines.
A voluntary routine with 10 elements, which included special requirements and a second with 10 different skills without any limits.
Finals: The eight best athletes of the qualifications performed only one voluntary routine, with 10 different elements without a limit.
The first routine of the qualifications with the required elements (eg double front somersault, front somersault with 1½ turn, double back somersault with a turn) was performed as written in the competition card and as designated by the Technical Committee of the International Federation.
The judges considered only the execution of this routine. The level of the exercises and their order of execution varied in the second routine of the qualifications and the finals. Judges judged these routines on the basis of their composition and execution.
Nine judges judge the athletes. These are: Chair of Judges Panel, Assistant to the Chair of Judges Panel, two judges for the difficulty level and five judges for Execution.
The Chair of Judges Panel with the cooperation of the assistant is responsible for the event and determines the highest score for each routine.
The judges on Difficulty evaluate the level of difficulty of the routine.
The judges on Execution evaluate the quality of the execution of the routine (technical mistakes such as the lack of the right positioning of the body, maintaining the right height and control of the exercises and final landing).
Beginning with his routine, each athlete has 0 Difficulty points and 10 points for Execution.
Difficulty score: Each element the athlete performs has a specific difficulty value that is calculated and added by the two difficulty judges and gives the final mark of Difficulty.
Execution score: Each of the five Execution judges makes deductions (if necessary) of up to 0.5 points for every element performed by the athlete. The total deductions, as well as a possible deduction for lack of control after the last element are then subtracted from the 10 original points. The highest and the lowest of the five judges’ scores are cancelled and the remaining three are added up.
Time of flight score: In 2011 a Time of Flight machine which measures the total flight time of the gymnast was introduced. It has been tested during the World Cups 2011, then used in the World Championships in Birmingham 2011 and will also be used at the Olympic Games in London 2012.
Difficulty score + Execution score + Time of Flight score = Final score