GSU competition rule. Biathlon Rules category.
GSU offers both singles (one kettlebell) and doubles (two kettlebells) variants for biathlon competition. Doubles biathlon is the standard/traditional format. Singles biathlon (one KB jerk + one KB snatch) is an accessible alternative for athletes not yet ready for double kettlebell jerk.
See the interactive comparison on KETTLEBELL MONSTER™ for filterable views and more detail.