Team Run Flagstaff Community Workouts

TRF is our community running group, open to all ability levels. We meet at 6 p.m. each Tuesday at the NAU outdoor track at Lumberjack Stadium during spring, summer, and fall. During the winter we move to the NAU indoor track at the Walkup Skydome.


PLEASE NOTE: TRF Youth is not currently meeting in person due to COVID-19 restrictions. Stand by for further information as soon as it becomes available.


WORKOUTS: 6 p.m. Tuesdays, at theNAU indoor track at the Walkup Skydome (Jan.-March) or the NAU outdoor track at Lumberjack Stadium (March-Nov.)


NOTE: TRF is temporarily meeting at Coconino High School track and sign-up/reservation is required to attend workouts. Members will receive instructions via email.


PLEASE NOTE: TRF is temporarily meeting at Coconino High School track and sign-up/reservation is required to attend workouts. Members will receive instructions via email.

Membership includes:

  • Weekly coached workouts the follow the philosophies of Dr. Jack Daniels
  • Access to track year-round, fully lit in wintertime
  • Connection to Flagstaff’s running community
  • Winter strength-training sessions
  • Step Into Running beginner sessions
  • EXCLUSIVE OFFERINGS and social gatherings


  • $125 – 12-month membership 
  • $65 – 12-month membership for one additional family member
  • $35 – 12-month membership for full-time college students

> Please note: Youth 18 and under must also complete membership registration online, at no cost, by clicking the link above. Also note that TRF registration does not include our TRF Youth program. For more information on our youth team, click here.

Training, defined

Easy running (E)

This includes warm-up, cool-down and recovery between faster bouts of work.  You also use E-intensity on long (L) runs.  E-running has a fair range of intensities – from about 60 to 75% of VO2max.  For just about everyone, E-running is strictly running at a comfortable, conversational pace, which certainly will vary from day to day, depending on how you are feeling.

Threshold pace (T)

This is comfortably hard running for either a steady 3-4 miles (or 5 to 6km) or repeated runs of 5 to 15 minutes each, with 1 to 3 minutes of rest between the runs. Intensity is to be 86-88%VO2max (a speed of running that you could maintain for about 1 hour in an all-out 1-hour race). The idea of “Tempo” runs is to spend some time at T-pace, so when a Tempo run lasts more than about 20 minutes, the earlier miles are to be a build up to the final 20 minutes, which should be at true T-pace. A person might even do a 10-mile “tempo” run, but this would mean starting relatively moderately and gradually speeding up until the final 3-4 miles are at T-pace. So, the longer the tempo run, the more time spent increasing speed up to that final 20 minutes at T-pace.

Interval-pace (I)

Also known as “hard” running. This is hard and at a pace that you could maintain for about 10-12 minutes in a serious race. I-work bouts are best if they involve runs of 3 to 5 minutes each (800 to 1600m are typical), with jog recoveries of similar duration (not necessarily, equal distance), relative to the runs they follow. If a workout calls for “hard” runs, then go by feel and imagine 4k to 5k race pace (even 3k race pace for slower runners), as the intensity of each run.

Rep-pace (R)

This speed should be the same at sea level and at altitude, but with longer recoveries at altitude. Recoveries are to be long enough that each run feels no more difficult than the previous run, because the purpose of R-reps is to improve speed and economy and you can not get faster (nor more economical) if you are not running relaxed. If it takes 3 minutes recovery between R-rep 400s, then that is what is needed. Reducing rest time between individual work bouts does not make for a better workout, in fact it probably makes for a worse workout because the short rests could increase the stress and lead to poor economy. Think of R-pace as equal to current mile race pace.


These are runs that last about 20 seconds each and are run at a subjective feeling that approximates R-pace running. Take 30-60 seconds rest between strides, or enough time to feel light and quick on each stride. NOT sprinting.

Use the Jack Daniels’ VDOT Running Calculator below to help you find your appropriate paces.