Variability Index

Coach Mike holding a clip board

Bike Pacing in Triathlon

Extra Mile Newsletter

The D3 coaches' best training intel and hottest tips are delivered monthly to your inbox!

    World Headquarters

    Based in the triathlon mecca!
    icon for phone
    (303) 545-6868
    icon for location
    Boulder, CO, 80304
    icon for mail
    info@d3multisport.com
    © 2000 - 2023 D3 Multisport | Photography © Adam Hodges | Terms & Privacy Policy | Anti Doping | FAQs | Media