Event Info

BOSTON TRIATHLON WEEKEND SCHEDULE OF EVENTS

The athlete guide will be uploaded on Tuesday! The Boston Triathlon returns to the city August 16-17, 2025 – and we couldn’t be more excited to welcome you back! Celebrate your season with this historical, scenic, fun and exciting Sprint & Olympic distance event. As a participant in the triathlon, you’ll swim in the fresh waters of Dorchester Bay, bike through Boston city streets, and run along the scenic Southie shoreline.

CLICK HERE for a full list of Venue & Course Maps!

Saturday, August 16

12:30pm: Kids Registration & Bib Pick-Up opens [Registration Tent]
12:30pm: Boston Tri Packet Pick-Up & Racking OPENS [Registration Tent]
3:00pm: Kids Fun Run [Day Boulevard]
3:15pm: Splash & Dash Safety Meeting [DCR McCormack Bathhouse]
3:30pm: Splash & Dash events begin [DCR McCormack Bathhouse]
4:30pm: Splash & Dash awards [Finish Line]
5:00pm: Boston Tri Race Briefing [Beer Garden]
5:30pm: Boston Tri Packet Pick-Up & Bike Racking CLOSES

Sunday, August 17 

4:45am: Registration & Transition Area opens [Registration Tent]
6:10am: Packet Pick-Up CLOSES for Olympic Athletes
6:15am: Transition closes for Olympic athletes
6:20am: Mandatory Olympic Race Meeting [DCR McCormack Bathhouse]
6:30am: Boston Triathlon Olympic race begins
7:25am: Packet Pick-Up CLOSES for Sprint Athletes
7:30am: Transition closes for Sprint athletes
7:45am: Mandatory Sprint Race Meeting [DCR McCormack Bathhouse]
8:05am: Boston Triathlon Sprint race begins
10:00am: Post-Race Party Begins [Beer Garden]
11:30am: Boston Tri Olympic & Sprint Awards Ceremony [Beer Garden]