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Scenic Half Marathon Chiang Mai (CMSH)

A half-marathon event held on November 1, 2026, at Royal Park Rajapruek in Chiang Mai, Thailand.

Compiled by the Run SEA editorial team from the sources cited below — not a first-hand race report. How we research listings.

Facts last checked August 25, 2026

The Scenic Half Marathon Chiang Mai (CMSH) is organized by the Scenic Marathon Series and takes place on November 1, 2026, at Royal Park Rajapruek in Chiang Mai, Thailand. The event offers four distance options: 21.1km, 10km, 5km, and 3km, catering to a range of runners from casual participants to half-marathon competitors.

The bottom line

The Scenic Half Marathon Chiang Mai puts runners inside Royal Park Rajapruek, a 200-acre botanical garden established in 2006 to honour King Bhumibol Adulyadej's 60th throne anniversary and 80th birthday. That's a genuinely different setting from the beach and city venues dominating most of this research batch -- 23 internationally donated themed gardens plus nine Thai and six corporate gardens, all within a park named for Thailand's national flower. Four distances (21.1K down to 3K) give it broad accessibility, and it's run by the same Scenic Marathon organisation behind the Krabi race covered elsewhere in this research, suggesting a consistent operational approach.

Key facts
Date2026-11-01
Distance Km21.1, 10, 5
Primary Distance Km21.1
OrganizerRACEUP WORK CO., LTD.
VenueRoyal Park Rajapruek, Chiang Mai
CityChiang Mai
CountryThailand

Racing Inside a Royal Botanical Garden

The race offers four distances -- 21.1K, 10K, 5K and 3K -- at Royal Park Rajapruek in Chiang Mai. [1] The park is a 200-acre botanical garden established in 2006 to commemorate King Bhumibol Adulyadej's 60th anniversary on the throne and his 80th birthday, showcasing Thailand's native flora and fauna alongside notable architectural structures. Its name, Rajapruek, refers to the golden shower tree, Thailand's national flower, symbolising the unity and continuity of the Thai nation.

23 International Gardens

The park includes 23 themed gardens donated by international governments, plus nine Thai gardens and six 'corporate' gardens -- originally built to showcase Thai horticulture as the International Horticultural Exposition, Royal Flora Rajapruek 2006, before being renamed and established as a permanent attraction. [2] Running a course through this kind of formal, internationally curated garden landscape is genuinely rare among the races in this research batch.

Same Organiser as the Krabi Race

This event is run by RACEUP WORK CO., LTD. through the Scenic Marathon organisation -- the same operator behind the Scenic Half Marathon Krabi covered elsewhere in this research batch. [1] That shared organisational structure across a beach venue (Krabi) and a botanical garden venue (Chiang Mai) suggests a versatile, multi-region operation with tested logistics.

Should You Run It?

If running through a genuinely beautiful, internationally curated royal botanical garden appeals, the Scenic Half Marathon Chiang Mai on 1 November 2026 is one of the more visually distinctive races in this research batch.

References & sources

  1. 1. Scenic Half Marathon Chiang Mai (CMSH) — official site — RACEUP WORK CO., LTD.
  2. 2. Royal Park Rajapruek — visitor guide — Museum Thailand

Quotes are short excerpts reproduced under fair use and attributed to their original authors; follow the links above for the full context. This article is an independent summary and is not affiliated with the event.

Pros

  • Multiple distance options (21.1km, 10km, 5km, 3km) suit different runner levels
  • Held at Royal Park Rajapruek, a notable venue in Chiang Mai
half-marathon thailand verified

Find out more about Scenic Half Marathon Chiang Mai (CMSH)

Frequently asked questions

When is the Scenic Half Marathon Chiang Mai taking place?

The Scenic Half Marathon Chiang Mai, organized by the Scenic Marathon Series, is scheduled to take place on November 1, 2026. The event will be held at Royal Park Rajapruek in Chiang Mai, Thailand, offering participants a full day of racing across several distance categories.

What distances are offered at this event?

The event offers four distance categories for participants to choose from: a 21.1km half marathon, which is the primary distance, along with 10km, 5km, and 3km options, allowing runners of varying experience levels and fitness goals to participate in the race.

Where is the race held?

The Scenic Half Marathon Chiang Mai takes place at Royal Park Rajapruek, a well-known venue located in Chiang Mai, Thailand. This location serves as the central hub for the race, hosting all four distance events organized under the Scenic Marathon Series banner.

What makes Royal Park Rajapruek a distinctive race venue?

It's a 200-acre botanical garden established in 2006 to honour King Bhumibol Adulyadej, featuring 23 internationally donated themed gardens plus Thai and corporate gardens -- a genuinely different setting from beach or city races. [2]

Who organises this race?

RACEUP WORK CO., LTD., through the Scenic Marathon brand -- the same organisation behind the Scenic Half Marathon Krabi covered elsewhere in this research, suggesting a consistent, tested operational approach across different Thai destinations. [1]

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