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Powerful waves crash against the coastline under a cloudy sky.
Race Finder

IRONMAN 70.3 Tallinn.
Race Tallinn on your terms.

Tallinn can look like an inviting place to go fast: water near the city, open Harju County roads and a run back towards the finish. But you need to know which swim venue you're actually heading to before any careful pacing plan becomes useful.

Tallinn, crashing waves on the coast.

Race day
8 Aug 2027
Course
Swim 1.9 km · Bike 90 km · Run 21.1 km
Historical air
14–22°C

What could you race?

I’m Tom, the coach behind Sense Endurance Coaching. Tell me where you are now and I’ll show you what a strong day in Tallinn could look like.

This prediction uses · 1.9 km swim · 90 km bike · 21.1 km run

Let’s build your race

Let’s build your race.

Your age and race category help me estimate where that performance could place you. They don’t determine how fast I think you can race.

Change units

Make the first decision before race morning.

The August 2027 weekend is taking shape, and the regional roads offer room to settle on the bike. The half-distance swim is less clear: Stroomi, Harku and Raku all appear in different accounts. Treat this as a useful race-distance plan until the confirmed 70.3 map names the real start.

Tallinn 70.3 swim, Stroomi/Harku/Raku conflict

Find the official start before planning navigation

Whatever venue the 2027 half uses, give the opening 300 metres to your stroke and breathing rather than chasing swimmers around you. Only choose a sighting line once the actual start and buoys are confirmed.

Seed honestly. Settle into rhythm.

Harju County, first half bike stage

Keep power honest on fast-looking roads

Flat countryside roads make it easy to ride harder than planned. Hold your target watts.

Watch the watts, not the speed. Fuel early.

Harju County, bike return pending

Maintain nutrition and avoid chasing speed

Use the return leg to hold effort and finish your nutrition before two coastal run loops.

Stay aero. Finish planned nutrition.

Tallinn half-marathon route, opening stage pending

Set a pace you can repeat before the crowds

The earlier coastal run could be exposed to Tallinn Bay wind. If the 2027 run returns here, let the first loop establish the conditions and a pace you can repeat.

Easy first aid station. Check posture.

Tallinn event finish, current map required

Use the final effort only on the verified course

Only progress once the first loop has confirmed conditions and held together.

Stay tall. Choose the last move late.

What to check in race week

Check the official half-distance start day and swim venue before booking transfers or rehearsing entry. Conflicting plans name Stroomi Beach, Lake Harku and Lake Raku. Get the half-specific bike, run, aid and transition maps instead of borrowing the full-distance course.

Forecast statusToo early for a forecast

A race-day forecast is not meaningful yet; check back closer to the event.

Temperature
13.9–22.3°CDew point centred on 14.0°C
Wind and gusts
11.9 km/hGusts up to 41.4 km/hPrevailing direction SW
Rain likelihood
Up to 85%Wet-surface uncertainty retained

Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-13.Historical comparison only. This is not a forecast for 2027.

Make your finish prediction and I can send this plan to you in race week.

Build the legs.
Practise the decisions.

A finish range gives you something to work towards. The preparation is specific to this race: a correctly located open-water start, disciplined Harju County riding and a controlled urban run can be executed without trusting contradictory venue listings.

I’m Tom. With Sense Endurance Coaching, I’ll build that preparation around your life, follow how you respond and adjust the work as you get closer to Tallinn.

Explore coaching
Trisutto certified80/20 Endurance certifiedBrett Sutton’s Coach the Coach programme

Training on your own? See half distance plans

Event formatOrganiser’s edition information

PhotographyRaul LingPexels Licence · resized, cropped and monochrome