General Registration

The content that follows was originally published on the Boston Triathlon website at

Registration for the 2018 Columbia Threadneedle Investments Boston Triathlon is now open!


Want to race for free? Join Team BMC!


RACE DAY is scheduled for Sunday, July 22, 2018.

Registration changes will not be accepted via email after Friday, July 13.  Edits such as changing categories, updating information such as date of birth, etc., can be made in person after July 13 at one of the scheduled race packet pickups.

We strive to provide everyone their requested t-shirt size, but they are ordered weeks in advance.  If you register after July 5th, 2018,  we cannot guarantee your requested size will be available on race day. After packet pickup closes on race morning, you can try to exchange your shirt for a different size with what is leftover.  Thank you for understanding.

Unfortunately, we do not provide refunds, nor deferrals.

Entry Fee includes:

– Custom technical race shirt – Awesome for running!

– Completely closed roads for the bike and run

– Special Finisher Award

– Goodie bag

– Free Post-Race BEER GARDEN

– Vendor village with lots of give-aways

– Safe, well-marked, and secure course

– FREE parking n the Transition Area

– Fantastic spectator venue

Why travel outside of the City, when you can race in your backyard? With simple logistics, spectacular views, and a finish line party, the Boston Triathlon is your must-do race of the season!

 2018 Pricing Opening to Feb 22 Feb 22 to Apr 24 April 24 to Sell out
Olympic Individual $160 $170 $185
Olympic Relay Team $240 $250 $260
 Olympic Aquabike  $160  $170 $185
Sprint Individual  $120  $130 $140
 Sprint Relay  $160  $170  $180


ethos Racer Deal:  

If you register for both the Lobsterman Triathlon and the Columbia Threadneedle Investments Boston Triathlon by April 1, 2018, you will receive 10% off both races! Simply register and we’ll get you a rebate through our registration system.  You won’t need a code.  We’d love to have you at both races!