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

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Chiltern 100 Cycling Festival

Chiltern 100 Cycling Festival

Bellingdon, Chesham (Amersham), Buckinghamshire · MAY 2025 · Road sportive

Data current as of 2026-06-26

Typical ride-day conditions

Around event day in Bellingdon, Chesham (Amersham), Buckinghamshire: 13°C typical, 2.1 mm rain, 20 km/h wind. (10-year Open-Meteo average.)

Routes (3)

Gran Fondo · Century

160 km · 2,000 m climbing

Entry from £53

Medio Fondo · Medio Fondo

100 km

Entry from £42

Explorer · Medio Fondo

60 km

Entry from £32

Common questions

What routes does Chiltern 100 Cycling Festival offer?

Chiltern 100 Cycling Festival currently lists Gran Fondo (160 km · 2,000 m climbing); Medio Fondo (100 km); Explorer (60 km) on raceindex.org.

How much climbing is there at Chiltern 100 Cycling Festival?

Recorded climbing by route: Gran Fondo: 2,000 m.

Where can I verify Chiltern 100 Cycling Festival 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 2026-06-26.

Derived numbers use cycling-scoring-methodology-v1.0.

Sources used on this page (2)

Layer E archive-api.open-meteo.com
Layer A atwevents.co.uk · fetched 2026-06-26

Read the full methodology →

Chiltern 100 Cycling Festival — routes, climbing & details · raceindex.org