IRONMAN Jacksonville 2027
A full-distance race in Jacksonville with a swim in the St. Johns River. The 2027 bike course is being reworked from the 2026 first edition and had not yet been released.
32 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? Ironman 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.
Build my complete road.
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 2027 bike route had not been released when this page was written, so build general 180 km endurance and revisit once the organiser publishes it. The 2026 edition used a two-loop bike.”
The race
The course
Swim in the St. Johns River. Wetsuits are legal at 24.5°C (76.1°F) or colder, up to 5 mm thick, and prohibited above that.
A reimagined 180.2 km course, evolving from the two-loop route of the 2026 first edition. The organiser says the 2027 route will be released once finalised.
A 42.2 km run through Jacksonville; the organiser gives no route detail on the pages read.
Not yet confirmed for this edition: bike elevation gain, cut-off times, aid station spacing, water temperature history, course maps (not checked against official GPX), 2027 bike route, run route, bike lap count. 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 Jacksonville course page on 4 October 2026. Courses change; the official page is always the last word.
Questions, answered
When is IRONMAN Jacksonville 2027?
What distances can I race at IRONMAN Jacksonville?
How hard is the course?
What is the swim like?
How long do I need to train for it?
How do I enter?
Read before you race
Half Ironman Recovery Time: A Practical Return
How to Choose Your First European IRONMAN
European IRONMAN Calendar and Race Comparison Guide
More races like this
This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by IRONMAN Jacksonville 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 entry, always use the official event website.