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IRONMAN 70.3 Costa Navarino, Costa Navarino, Messinia, Greece
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IRONMAN 70.3 Costa Navarino 2026

Costa Navarino, Messinia, Greece
25 October 2026 Triathlon 70.3 Gialova Bay857 m climbingCut-offs published

A 70.3 at Costa Navarino in Messinia: a swim in Gialova Bay, a rolling two-loop bike with 857 m of climbing and a flat, fast two-loop run through Gialova village.

Terrain
Road
Rolling roads through Messinia
Elevation
Rolling
857m gain · Organiser descriptor: rolling bike, with 857 m of climbing (organiser figure)
Swim
Sea
Swim in Gialova Bay.
Wetsuit
Wetsuit-legal at 24.5°C (76.1°F) or colder
up to 5 mm thick; prohibited above 24.5°C (organiser rule)
Region
Greece
Costa Navarino, Messinia, Greece
Your runway

3 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? 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.

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 organiser gives 857 m of climbing on a rolling two-loop bike and publishes cut-offs of 5 h 30 for swim plus bike, so plan pacing and fuelling around them. The two-loop run is described as flat and fast.”

Abraham Spring: founder, Unbroken

The race

IRONMAN 70.3 Costa Navarino is on Sunday 25 October 2026. Swim: Gialova Bay. Bike: Two loops on a rolling route through Messinia's landscapes, with 857 m of climbing (organiser figure). Run: Two loops through Gialova village and its surroundings, which the organiser describes as flat and fast. Wetsuits are legal at 24.5°C (76.1°F) or colder, up to 5 mm thick, and prohibited above that. The organiser does not state on the pages read, so that detail is not given here.

The course

Swim1.9 km
Lap count not published

Swim in Gialova Bay. Wetsuits are legal at 24.5°C (76.1°F) or colder, up to 5 mm thick, and prohibited above that.

Bike90 km
2 laps

Two loops on a rolling route through Messinia's landscapes, with 857 m of climbing (organiser figure).

Run21.1 km
2 laps

Two loops through Gialova village and its surroundings, which the organiser describes as flat and fast.

Cut-offsSwim cut-off 1 h 10. Swim + bike cut-off 5 h 30. Overall cut-off 8 h 30

Not yet confirmed for this edition: aid station spacing, water temperature history, course maps (not checked against official GPX). 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 Costa Navarino course page on 4 October 2026. Courses change; the official page is always the last word.

Questions, answered

When is IRONMAN 70.3 Costa Navarino 2026?

IRONMAN 70.3 Costa Navarino takes place on 25 October 2026.

What distances can I race at IRONMAN 70.3 Costa Navarino?

70.3. 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 with around 857m of climbing. Organiser descriptor: rolling bike, with 857 m of climbing (organiser figure)

What is the swim like?

Swim in Gialova Bay.. Wetsuit-legal at 24.5°C (76.1°F) or colder, up to 5 mm thick; prohibited above 24.5°C (organiser rule). Practise open water before race week, not during it.

How long do I need to train for it?

Race day is 25 October 2026. For the 70.3, a proper recovery-led build wants about 12 weeks, which means starting around 2 August 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

Half Ironman Recovery Time: A Practical Return

A practical 70.3 recovery guide covering the first 72 hours, the first easy sessions and a response-led return to structured training.

How Much Harder Is a Full IRONMAN Than a 70.3?

The distance doubles, but the preparation, fuelling, durability and recovery cost rise by much more than two.

IRONMAN 70.3 Tallinn Training Guide

Prepare for Tallinn's freshwater swim, fast bike demands and compact 21.1 km run with a specific, recoverable training block.

This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by IRONMAN 70.3 Costa Navarino 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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