This is the instructional video for the TTR TUESDAY SPRINT INTERVALS to be performed each TUESDAY during Phase 1 of the challenge. You'll find custom interval timer below,

Please leave your post-workout report (PWOR) in the comment section below.

15-45 POWER CIRCUIT Interval Timer:
https://www.intervaltimer.com/shared/m1MufuHlSJSqIPmfyjsq-TTR-TUESDAY-Sprint-Intervals