Overhand pitch 4. Both are sports made up of more than one event. Differences Biathlon Triathlon 1. Made up of three sports - swimming, running, and bicycling 2. Competitors ski through the woods and stop every five kilometers to shoot at a board with five targets.
Competitors swim a distance, then run a distance, then bike until the finish.
Distances are not always the same. Fastest time wins. Each missed target adds one minute to your time. Fastest time wins. Both are snow sports using sleds.