Gymnastics has a Code of Points. the COP outlines every skill and gives it a value A (easiest) to G (hardest). There is a Technical Committee that determines skill difficulty levels. If you want to compete a skill that isn't in the COP, you must submit the skill to the committee for approval BEFORE competing it. If it is approved, it is added to the COP and you may compete it. In gymnastics, the first person to successfully stick a skill they submitted in international competition has that skill named after them.
There are two scores in a competition the D (difficulty) and the E (execution). There are two judge panels at each event, a D and an E.
The D-score (or Difficulty score) evaluates the content of the exercise on three criteria: the Difficulty Value (DV), Composition Requirements (CR) and Connection Value (CV).
* DV: The difficulty value of the eight highest value elements of the routine, including the dismount, are added together. Elements are ranked depending on their difficulty; for example on beam, a back layout salto to two feet is given a difficulty of E, and a back layout salto with a full twist is given a difficulty of G. For a G skill a gymnast earns 0.7; for an E, he or she earns 0.5 points.
* CR: Gymnasts must demonstrate skills from five required Element Groups on each apparatus. A gymnast may use skills to fulfill the DV and the CR simultaneously. For each CR presented, 0.5 points are awarded. A maximum score of 2.50 points may be earned here.
* CV: Additional points are given for connections of two or more elements of specific value, with 0.1 or 0.2 points apiece.
Although the A judging panel does not take deductions, they may decide not to give gymnasts DV or CR points for elements that are performed with falls. A gymnast may also lose CV credit if there are extra steps or pauses between skills that are meant to be connected.
The D-score is open-ended; in theory a gymnast could obtain unlimited points by performing connected skills although this was made harder in the 2009-2012 revision of the code when the number of elements that counted towards the D-score was lowered.
The E-score (or Execution score) evaluates the performance: the execution and artistry of the routine.
- The base score is 10.0. Judges do not add to this, but rather, take away points for errors in form, artistry, execution, technique and routine composition. There is a 1.0 mark deduction for falling off an apparatus. Errors that are made are judged to be small, medium or large and respective 0.1, 0.3 and 0.5 deductions are taken.
The D-score and E-score are added together for the gymnast's final mark.
I can see this system being modified to fit the needs of a cheer routine.