As competitions are completed (squat, bench, and deadlift), you can quickly identify the disqualified lifters by processing the Disqualification routine.  Just choose option '8. Disqualify Competitors' through the Event menu, and the Disqualification Form will appear.

Disqualification Form

Just select the completed competition and press the Apply button. Press 4.0 will spend a few micro-seconds identifying those power meet lifters without a good attempt in the respective competition. Press the Clear button if you wish to remove all of the disqualification identifiers and reset each competitor.