IRONMAN Wisconsin, Madison, Wisconsin, USA
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IRONMAN Wisconsin 2026

Madison, Wisconsin, USA
13 September 2026 Triathlon Full (iron distance) The HelixHilly bikeMadison run

A Lake Monona swim, a hilly two-loop ride through Wisconsin farmland and Verona, and a two-lap run through Madison.

Terrain
Road
Rolling Wisconsin farmland
Elevation
Rolling
Hilly bike, flatter run
Swim
Lake
Lake Monona, fresh water
Wetsuit
Check the official race-week athlete information
Region
Wisconsin
Madison, Wisconsin, USA
Your runway

2 weeks to race day: the sharpening window

A full build no longer fits, but a sharp one does. This close in, the job is specificity and freshness: race-pace touches, open-water or brick rehearsal, and a taper your nervous system actually absorbs. No heroics; arrive fresh.

R
Recover
Consider recovery context, sleep and readiness before adding training load.
A
Align
Fit the plan to your actual life, not the one you wish you had.
C
Condition
Minimum effective dose. The right sessions, done fresh.
E
Execute
Race-week protocol, pacing, contingency. Nothing new on race day.

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.

Road to Race

Build my pacing and preparation plan.

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.

Already have the app, or want it? The app takes this race and builds the block around it.
Abraham Spring, founder of Unbroken

“The Helix is one transition detail; the repeated rural climbs are the larger pacing problem. Train rolling terrain on tired legs and keep the first bike loop controlled enough to repeat the effort.”

Abraham Spring: founder, Unbroken

The race

Wisconsin begins in Lake Monona before the route passes through the Helix at Monona Terrace. Current official materials conflict on the swim lap structure, so the race-week athlete information remains the final authority. The bike uses an approach section and two hilly rural loops through Wisconsin farmland and Verona. The two-loop run links Madison landmarks including Camp Randall Stadium, the UW Lakeshore area and the Capitol district. Prepare for repeated changes of gradient and protect the second bike and run laps through measured early pacing.

The course

No course maps for this race. IRONMAN publishes no downloadable route for any leg of this race, 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.

Swim2.4 mi 3.8 km
Lap count not published

The swim takes place in Lake Monona. Current official materials conflict on the lap structure, so check the race-week athlete information for the final course.

Bike112 mi 180.2 km
2 laps

An approach section leads south and west to two hilly rural loops through Wisconsin farmland and Verona, before returning to Monona Terrace.

Run26.2 mi 42.2 km
2 laps

Two laps through Madison, including Camp Randall Stadium, the UW Lakeshore area and the Capitol district.

T1Monona Terrace, at the top of the Helix. You run up the spiral ramp from the swim exit to get there.
T2Same building. Ride back up the Helix and dismount at the top.

Not yet confirmed for this edition: final transition layout, course maps and final route geometry, bike elevation gain, run elevation gain, start times, cut-off times, aid stations, event nutrition, water temperature, wetsuit rules, registration status and entry pricing, qualification slots, sponsors and suppliers, accommodation. 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 Wisconsin course page on 23 August 2026. Courses change; the official page is always the last word.

Questions, answered

When is IRONMAN Wisconsin 2026?

IRONMAN Wisconsin takes place on 13 September 2026.

What distances can I race at IRONMAN Wisconsin?

Full (iron distance). Pick the distance that fits your training runway, not your ego: the right distance is the one you can arrive at fresh.

How hard is the course?

Road terrain, rolling profile. Hilly bike, flatter run

What is the swim like?

Lake Monona, fresh water. Check the official race-week athlete information. Practise open water before race week, not during it.

How long do I need to train for it?

Race day is 13 September 2026. For the full distance, a proper recovery-led build wants about 20 weeks, which means starting around 26 April 2026. Later starts still work: the block compresses honestly rather than pretending, and it always anchors to the exact race date.

How do I enter?

Entries are handled by the organiser. Use the Register button above: it goes straight to the official site.

Read before you race

IRONMAN Lake Placid vs Wisconsin: Compare the Work

Compare Lake Placid and Wisconsin across swim setting, climbing, technical demand, hilly running and preparation access.

IRONMAN Wisconsin Conditions, Nutrition and Equipment

Prepare fuelling and equipment choices that remain usable across Wisconsin's rolling, technical course and changing exposure.

IRONMAN Wisconsin 140.6 Course Pacing

Plan the full-distance IRONMAN Wisconsin 140.6 course at Lake Monona, on the rolling technical bike and across the hilly urban run without confusing it with IRONMAN 70.3 Wisconsin.

Photograph of Madison, Wisconsin, USA: MuZemike, CC BY-SA 3.0, via Wikimedia Commons. Not official race photography.

This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by IRONMAN Wisconsin 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.

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