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

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Mersea Island Sprint Triathlon

Mersea Island Sprint Triathlon

West Mersea, Essex · Independent

Data current as of 2026-06-24

At a glance

SwimSea
SettingCoastal
StartMersea Island beach, Blackwater estuary

Blackwater estuary sea swim
pontoon dive start
bike over the island causeway
run finishes on the beach at Shingle Point

Distances offered (1)

Sprint

750 m swim · 20 km bike · 5 km run

Entry fee not published

SurfaceMixed
Run terrainRun finishes partly on the island beach.
SwimSea

Common questions

What triathlon formats does Mersea Island Sprint Triathlon offer?

Mersea Island Sprint Triathlon currently lists Sprint (750 m swim · 20 km bike · 5 km run) on raceindex.org.

Where can I verify Mersea Island Sprint Triathlon 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.

Sources used on this page (1)

Layer A britishtriathlon.org · fetched 2026-06-24

Read the full methodology →

Mersea Island Sprint Triathlon — course, terrain & details · raceindex.org