Skip to content

Races
Calendar
Routes
Compare
More
Find my race

Loading

Loading triathlon event

raceindex.org

Compare route, elevation, entry, conditions and weekend cost using source-linked race data.

How the data is calculated

Explore

Find my race
Race calendar
Compare races
Route maps
Rankings
Cycling
Triathlon

Distances

Marathons
Half Marathons
10Ks
5Ks

Trust

Data coverage
Evidence
Corrections
Ballot calendar

© 2026 raceindex.org. Derived figures use a published methodology; modelled costs are labelled.

Home
Triathlons
IRONMAN 70.3 Bolton

IRONMAN 70.3 Bolton

Bolton · JUN 2027 · Ironman

Data current as of 2026-06-24

At a glance

SettingMixed
ParkingPennington Flash pay-and-display
Nearest stationBolton train station

Typical race-day conditions

Around race day in Bolton: 13°C typical, 3.4 mm rain, 20 km/h wind. (10-year Open-Meteo average.)

Distances offered (1)

Middle (70.3)

1,900 m swim · 90 km bike · 21.1 km run

Entry fee not published · non-drafting · 50 slots

Bike climb757 m
CourseLaps
Run terrainflat town-centre laps
Laps4
SwimReservoir
Aid stationsBike aid stations at 15.5km, 33.9km, 47km, 73.3km

Pennington Flash swim
red-carpet town-hall finish
Queen's Park run

View course map / route ↗

Common questions

What triathlon formats does IRONMAN 70.3 Bolton offer?

IRONMAN 70.3 Bolton currently lists Middle (70.3) (1,900 m swim · 90 km bike · 21.1 km run) on raceindex.org.

How much bike climbing is there at IRONMAN 70.3 Bolton?

Recorded bike climbing by format: Middle (70.3): 757 m bike climbing.

Where can I verify IRONMAN 70.3 Bolton details?

Use the linked official event website alongside the raceindex.org provenance and methodology notes shown on this page.

Official event website ↗

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of 2026-06-24.

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (2)

Layer A ironman.com · fetched 2026-06-24
Layer E archive-api.open-meteo.com

Read the full methodology →

IRONMAN 70.3 Bolton — course, terrain & details · raceindex.org