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Thailand · Mixed

5th CNX 100K Ultra Marathon - 100km

◉ Thailand
Verified listingUpdated May 24, 2026

5th CNX 100K Ultra Marathon - 100km is listed for October 3, 2026 in Thailand. Listed distances: ultra - 100km. Confirm the date, registration and travel details with the official organizer before you book.

Date
October 3, 2026
Distances
ultra - 100km
Location
Thailand
Surface
Mixed

About this race

DUV source-backed ultramarathon 100km; ultra - 100km; location Chiang Mai; DUV status  ; IAU label    .

Key facts

Date
October 3, 2026
Location
Thailand
Events
ultra - 100km
Surface
Mixed
Official source
Registration page & official site
Listing status
Verified · updated May 24, 2026

Before you register

  • 1
    Confirm the race-day schedule

    Verify the October 3, 2026 start times, packet pickup and corral instructions on the official source before booking travel.

  • 2
    Pin the exact start area

    Use Thailand as the planning region, then confirm the precise start, finish, parking and transport with the organizer.

  • 3
    Pick your distance

    Listed options are ultra - 100km. Check the source for current per-distance availability and limits.

  • 4
    Review entry terms

    Read entry rules, refund terms, participant limits and transfer rules before you pay.