Thailand
Race Calendar
Type
Region
OCTOBER 2026
10 races
CNX100K Ultra Marathon
3 OCT/CHIANG MAI
Road50 KM100 KM
Hin Sam Wan Trail
4 OCT/BUENGKAN
Trail47 KM33 KM8 KM
The Maetho Trail
4 OCT/CHIANG MAI
Trail
★ DOI Recommended
Pong Yaeng Trail
18 OCT/MAE RIM
Trail100 KM70 KM50 KM30 KM20 KM
Khaoyai X Trail
18 OCT/NAKHON RATCHASIMA
Trail50 KM25 KM15 KM8 KM
Tulay Trail
25 OCT/TAK
Trail8 KM25 KM45 KM75 KM100 KM
Trail Master Series - Wangchan Valley
25 OCT/RAYONG
Trail
Nam Nao Geopark Trail
25 OCT/PHETCHABUN
Trail13 KM23 KM37 KM56 KM
Khon Kaen 100 by Ving
25 OCT/KHON KAEN
Road
Trail on the Rock
25 OCT/CHAIYAPHUM
Trail8 KM15 KM32 KM50 KM
NOVEMBER 2026
9 races
Ultra Nakee Naka Trail
1 NOV/NAKHON PANOM
Trail8 KM17 KM34 KM50 KM
Thep Sadet Trail
1 NOV/LAMPANG
Trail100 KM50 KM30 KM15 KM
Phetchabun Skytrail
7 NOV/Phetchabun
Ruammit Ultra Trail 2026
7–8 NOV/Chiang Rai
50 KM35 KM12 KM3 KM
Ultra Trail Pha Hob 2026
7–8 NOV/Lampang province
50 KM35 KM15 KM
Cuesta X Trail
8 NOV/NAKHON RATCHASIMA
Trail5 KM13 KM35 KM55 KM100 KM
Lampang Mysstic Trail
15 NOV/LAMPANG
Trail10 KM25 KM55 KM70 KM
★ DOI Recommended
Pocari Sweat Trail Run
15 NOV/CHIANG MAI
Trail100 KM50 KM40 KM30 KM
★ DOI Recommended
Chiang Mai Thailand by UTMB
29 NOV/CHIANG MAI
Trail20 KM50 KM
DECEMBER 2026
9 races
★ DOI Recommended
Chiang Mai Thailand by UTMB
6 DEC/CHIANG MAI
Trail20 KM50 KM100 KM160 KM
Soimalai Trail - Winter Season
13 DEC/TAK
Trail12 KM33 KM45 KM65 KM100 KM166 KM
Mae Takhrai Trail
13 DEC/MAE ON
Trail10 KM24 KM30 KM50 KM65 KM80 KM100 KM170 KM
Pha Sam Liam Trail
13 DEC/Chiang Mai
Trail5 KM18 KM38 KM
Khaoyai 100k Ultra Marathon
19 DEC/NAKHON RATCHASIMA
Road50 KM100 KM
Tanaosri Trail
20 DEC/RATCHABURI
Trail4 KM11 KM26 KM51 KM104 KM
Chiang Dao 100 Ultra Trail
20 DEC/CHIANG DAO
Trail10 KM20 KM30 KM50 KM100 KM
Lamphun Ultra Marathon
26 DEC/LAMPHUN
Road100 KM
Core X250 Ultra Trail
27 DEC/CHIANG DAO
Trail15 KM30 KM50 KM100 KM250 KM
