Handicap trapshooting in competition(ATA) goes like this....Males 18yrs of age or older Start at the 20 yd. line. and move back when they win a shoot or score 96 or more. The shooters all have cards which are punched for"earned yardage" and all scores are kept on computer at ATA hdqtrs., shooters must shoot from their earned yardage or are penalized(banned from comp. for a year or more.) Punches can be for as little as 1/2yd. or 2 or 3 yards if you shoot well in a large tournament. The ATA has a web page which explains it all in more detail....When shooting handicap your technique, chokes, etc. don't have to change much until you work your way back to 24 or more yards, then leads change including leads for hight!! This is the trap event where the little guy can win the big shooters money as starters shoot from 20 and the pros from 27.....that is also why there is much more money riding on handicap events including calcuttas!! Starting trapshooters would do better if they practised handicap and doubles more...and less singles!!