Lake Como Triathlon™
Race Information

SWIM: 1500 Yards 

The open water swim begins begins and ends at the beach area, north side of the lake. Total distance around the buoys is about 1500 yards. (Last year it was about a mile in length.) The swim will start at 8:00 am, after the mandatory racers meeting, 7:45.
Average seasonal water temperature during July is between 65 and 68 degrees. Wet suits are optional but highly recommended.

IMPORTANT: Max swim time is 1 hour. Any swimmers in the water after that will be pulled in by boat for safety.

T-1: Transition from Swim to Bike
  The sprint to the transition area after the swim is sand/rock/soil. If you have tender feet, flip-flops are recommended upon exit. An area will be designated for flip-flop gear-up. With foot protection, you must run a 500+/--yard sprint to the transition area. 

BIKE: 12.4 miles

The bike course is a combination of Forest Service Road and trail.  The course is currently tagged in silver and pink plastic strips. MAP

12.4 miles (33% singletrack, 67% doubletrack/forest road). Gravel/cross bikes are allowed but not recommended. The course will be well marked but racers should have a general understanding of the course in case of someone tampering with the markings. The area is open to other users (hikers, bikers, horses, cars) so please be respectful and always LOOK BOTH WAYS before entering a roadway!

RUN: 7.7 miles

The run course will begin on the north side for safety reasons and the least amount of hiker traffic earlier in the morning. The run will be towards Rock Creek Falls around to the south side and finish on the long stretch of the dam. The trail has varied running surfaces of rocks and well-used single track. Pass with verbal notice and caution.  For this reason headphones are not recommended.  Use etiquette with hikers, horses, and wheel chairs!  Signs will be posted of event in process.

Race numbers must be worn on the front of the runners garment and visible at the finish line.

IMPORTANT: For safety and to comply with insurance and maximum permit time requirements, no runners will be allowed to start the run after 10:30.





  • Support crews will not be allowed on any portion of the event, including the transition area.

  • ANSI or SNELL approved helmets must be worn during the bike.

  • Wet suits are allowed during the swim. And must be cleaned per Forest Service regulations before race day.

  • No drafting in any way during the swim and bike. Allow two bike lengths between riders. Please note, single track riding does occur.  Please use caution for yourself and other riders at all times.

  • Teams are required to hand touch in the transition area between incoming and outgoing team members.

  • A mandatory racers' meeting will be held at 7:45 am on race day at Lake Como. This meeting will cover race-day procedures, information about the trails and any other questions regarding the race. For more information, contact Bitterroot Multisport Events at 406-363-0514 or

AWARDS: Individual age categories

Awards will be presented to

The top overall male and female (will not be counted for age group)

First places for male and female in age categories:
25 and younger,
25-34, 35-44, 45-54, and 55 and over. 


Each member of the first place male, female, and Co-ed relay teams will receive awards.

Awards/Post Party

No food or catering this year. All participants and guests need to bring their own food and water. No Post Party this year.