4. Dives Backstroke start Track start Grab start Used for the same purpose, which one is used is based on the swimmers preference.
5. Sprinter Vs. Distance Swimmer Sprint Sets are shorter and on faster times Example: 10x25 on 20 seconds (this comes out to only be 10 laps but there is very little rest between each length) Distance Sets are longer but have more rest Example: 6x200 on 2:45 (this is swimming 8 laps before resting and repeating it six times adding up to 48 laps)