Sriracha Ultra 100 Chon Buri 2026

The Sriracha Ultra 100, second edition, brings 60K and 100K ultra-distance running to Bang Phra, Si Racha, Chon Buri, on 26–27 December 2026. Both races start and finish at Wat Tapotharam and run through the Bang Phra Reservoir area, including sections of quiet roads and reservoir-side terrain. Thailand's Royal Irrigation Department confirmed the proposed event venue and routes in a September 2026 planning meeting.

Race-day programme (Thailand time, ICT)

• Saturday 26 December, 17:00: 100K start.
• Saturday 26 December, 17:30: 60K start.
• These are overnight ultra events, continuing into Sunday 27 December. Final cut-off times should be checked in the organiser's briefing.

Runner information

• Bib/race pack collection advertised at Wat Tapotharam on Saturday 26 December, 13:00–17:00. The late collection window is close to the start time, so confirm your assigned collection arrangements.
• Advertised mandatory kit includes a hydration pack or bottles, reusable folding cup, headlamp and rear light.
• Adults aged 18 and over may enter the 60K and 100K categories according to the registration listing.
• Check the official race briefing for route changes, safety requirements and the latest conditions around Bang Phra Reservoir.

Distance note: The 60K is a separate race; ARC does not currently have a 60K structured distance tag, so the 100K tag represents only the longer category.

Registration checked 4 November 2026

The official registration partner Ahotu currently has selectable, non-sold-out tickets for the exact 26 December 2026 edition: 100K at approximately USD 81 and 60K at approximately USD 66. These are the partner’s displayed converted prices; confirm the final currency and total at checkout. World’s Marathons advertises a 30 November 2026 registration closing date, subject to earlier sell-out. The current edition must not be confused with the historical 8 March 2025 event.