List of Regular Activities


Tuesday Night Time Trials: April 2nd, 2019 – Sept. 3, 2019

 Our weekly cycling time trials. We have a few different start locations (Strava Route Links):

The first rider starts at 6 pm. Be sure to email to be on our mailing list to know which starting point we’ll be at each week. All are encouraged to come out and bike as fast as you can!

Wednesday Night Trail Runs: March 13th, 2019 – Oct. 30th, 2019

Our weekly evening runs. Every week we will meet at a different trail head in Los Alamos. Be sure to email to be on our mailing list to know which trail we’ll be at. All paces are welcomed!

A few of the Trail Runs we run (Strava Route Links):

Thursday Night Mountain Bike Time Trials: Starting May 30th

The Thursday night mountain bike time trial (TNMTBTT) is an event held by Triatomics typically from the beginning of June until August. The event is a "race", where participants start at the same time with a sprint of the start line.

Location: PTLA track behind the lab parking garage

Route: 3 km long loop of the lab fitness trail. The trail used is intermediate level and has a single track/fire road climb with a rocky but not to steep single track descent.

Warm Up Time: 5:30 pm - warm up/sighting lap. The warm up lap is a very easy pace.

"Race Time": 6:00 pm - Upon completing the warm up lap, we start the event at 6:00 pm. Many people choose to skip the warm up lap and come for the for the “official” start at 6:00 pm. Two laps are usually raced and times range from 18-35 minutes and some beginners choose to only complete only one lap.

Timing: The event is usually timed in a casual way and results are sent out by email.

The TNMTBTT is a great weeknight event with a friendly atmosphere and all with at least a bit of MTB experience are welcome!

The PTLA trail is on LANL property and is labeled as LANL badge holders only.

Splash N Dash: Tentative Dates – May 29, June 12 & 26, July 10 & 24, Aug. 7th, 2019


One of our most popular events, the Splash N Dash! Participants can choose the following distances:

  • Youth Course – 100 yard swim and 1 mile run
  • Short Course – 200 yard swim and 1.9 mile run
  • Long Course – 400 yard swim and 3 mile run

The swim is at the Larry Walkup Aquatic Center in Los Alamos. The run is on the sidewalks around the Aquatic Center, High School, and local neighborhoods.

Participants can also “tag-team” the swim/run. All are encouraged to join in on the fun!

Other Activities

Fitness Clinics


We host a variety of clinics like proper running form.



During the colder months, we have yoga sessions.

Fun Socials


We have monthly socials after bike rides. We also have our holiday social dinner in December at a local restaurant in Los Alamos, where we can enjoy each others’ company as well as show off the year’s racing bling!