2018 White Mountains Triathlon is SOLD OUT!

Registration for 2019 is OPEN – register early and SAVE!

New Hampshire’s Premier Triathlon!

Compete in one of the most beautiful & pristine event venues in the world!

Check out registration information, pricing tiers and all your race options for the event.

All the information you’ll need to know regarding the courses, historic places and relay splits.

Start times, pick-up info and all your need-to-know info for the White Mountains Tri.


About Us


Millennium Running is fueled by the passion of promoting healthy, enjoyable lifestyles. With over a dozen Signature road races and triathlons, a running specialty store, the Millennium Running Club, plus all-purpose timing and event services. 

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Don't forget to share your Millennium memories with #millenniumrunning and #runnh on all of your social media. Plus, connect with us on Facebook, Twitter, Instagram & YouTube!



Contact Us


Millennium Running
138 Bedford Center Road
Bedford, NH 03110

Events: 603.488.1186
Retail: 603.472.7867

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