19
December 2026
Saturday
Running· Nakhon Ratchasrima, Thailand
Khaoyai 100K Ultra Marathon 2026
Starts in 45 days
Key facts
- Longest distance
- 100 km
About this event
100KM and 50KM ultra marathon road event in Khao Yai region
Khaoyai 100K Ultra Marathon 2026 is a running (ultra) event in Nakhon Ratchasrima, Thailand, held on Saturday, 19 December 2026 — a weekend event. The longest distance is 100 km (an ultra distance).
Entry & registration
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