Biathle Rules

The rules of Biathle are laid down by the UIPM which is the International Federation for Modern Pentathlon.

The detailed rules can be accessed here. For a summary and overview see the Introduction to Biathle.


All competitors must be full members of the Pentathlon GB or their National Federation.  Information about membership and how to join Pentathlon GB is available here.


  • For Biathle competitions, athletes should wear a swimsuit or tight-fitting one-piece or two-piece body suit that is capable of being worn for each segment of the competition. This will eliminate the loss of time in removing or changing clothing between the various legs of the competition. All athletes must wear their tops throughout the race.
  • Athletes are not permitted to wear shoes during the swimming portion of the event.
  • Athletes must wear shoes for the running sections of the event.