IRONMAN 70.3 Maine 2027
The fastest 70.3 swim in the world in 2023, run downstream on the Kennebec, then a rolling valley ride and a single-loop run to the State Capitol.
49 weeks to race day: base season
Plenty of runway. This far out, the win is a boring, consistent base rhythm: aerobic volume, strength, technique. The structured block starts closer in; what you do now decides how high it can climb.
Building for this one? 70.3 training plan covers the sessions, the weekly shape and how the block is paced. The R.A.C.E. Framework explains why it is built that way.
Start my Road to IRONMAN 70.3 Maine.
Commit to the date and the work gets a shape: your countdown starts, the emails arrive in step with your build, and the app anchors a recovery-led block so the final week lands exactly on race day.
One confirmation email, then the road begins. Registering for the race itself stays with the organiser.
“The fastest 70.3 swim in the world in 2023, and it is the river doing it. Bank the time, then climb out of T1 on legs that have not woken up yet, which is the bit nobody warns you about.”
The race
The course
No course maps for this race. IRONMAN publishes no downloadable route for any leg of this race, only a live tracker that runs on race day, so there is nothing to draw a course map from. Everything below comes from the official course page, checked on the date at the foot of this section.
Point to point downstream on the Kennebec, and quick enough that it was the fastest 70.3 swim in the world in 2023 and voted third best swim in North America. The current does the work. Do not read the split as fitness.
South down the Kennebec River valley through rural Maine towns, with climbs and smooth descents rather than flat riding. The official page does not state a lap count.
A single loop mixing rolling hills and flat stretches with shaded sections beside the Kennebec, through the historic towns of Hallowell and Augusta, finishing in front of the State Capitol building.
Not yet confirmed for this edition: bike lap count, bike elevation gain, cut-off times, water temperature history. We publish these only once they are on the official course page, so check there before you pace off anything here.
Course details verified against the official IRONMAN 70.3 Maine course page on 14 August 2026. Courses change; the official page is always the last word.
Questions, answered
When is IRONMAN 70.3 Maine 2027?
What distances can I race at IRONMAN 70.3 Maine?
How hard is the course?
What is the swim like?
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Read before you race
Race Week Is Where People Unravel.
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Photograph of Augusta, Maine, USA: Terry Ross, CC BY 2.0, via Wikimedia Commons. Not official race photography.
This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by IRONMAN 70.3 Maine or its organiser. Details are based on publicly available information; names are used descriptively to identify the event. For accurate, up-to-date information and to enter, always use the official event website.