Khaoyai-Prachin Ultra 2026
7 - 8 March 2026
King Mongkut's University of Technology North, Prachin Buri province
สวรรค์ รำไร ULTRA MARATHON 2026
18 - 19 April 2026
Sawan Park (Nong Somboon), Nakhon Sawan province
Khaolangbann Trail 2026
4 - 5 July 2026
Thung Samo Subdistrict Administrative Organization, Phetchabun province
Jungle-Trail Khao Eto. 2026
September 6, 2026
Khao Ito Waterfall Recreational Forest Forest in Muang Doem, Mueang Prachin Buri District, Prachin Buri province
Friday, January 16, 2026
Royal Doi Mod Trail Run, 10th Edition
16 - 18 January 2026
ที่ทำการอุทบายแห่งชาติขุนแจ ต.แม่เจดีย์ใหม่ อ.เวียงป่าเป้า, Chiang Rai province
Saturday, January 17, 2026
Thailand 24H 2026
17 - 18 January 2026
สวนสาธารณะพุทธมณฑล, Samut Sakhon province
Saturday, January 24, 2026
KHEKNOI ULTRA TRAIL 2026
24 - 25 January 2026
อบต.เข็กน้อย ต.เข็กน้อย อ.เขาค้อ, Phetchabun province
Sunday, January 25, 2026
PHA TANG ULTRA TRAIL 2026
January 25, 2026
ลานอเนกประสงค์ หน้าสหกรณ์หอมหัวใหญ่บ้านผาตั้ง อ.เวียงเเก่น, Chiang Rai province
Sunday, February 1, 2026
Suanphueng 100 EP4
February 1, 2026
ภูผาผึ้งรีสอร์ท, Ratchaburi province
Sunday, February 8, 2026
Ultra Trail Savannah 2026
February 8, 2026
อุทยานแห่งชาติทุ่งแสลงหลวง (หนองแม่นา) อ.เขาค้อ, Phetchabun province
Saturday, February 21, 2026
PHU WIANG TRAIL 2026
21 - 22 February 2026
อุทยานแห่งชาติภูเวียง, Khon Kaen province
Saturday, March 7, 2026
Khaoyai-Prachin Ultra 2026
7 - 8 March 2026
King Mongkut's University of Technology North, Prachin Buri province
Sunday, March 15, 2026
Nong PraJak Ultra100
March 15, 2026
หนองประจักษ์อุดร, Udon Thani province
Saturday, March 28, 2026
Hatyai Khohong Trail - ป่าในเมือง 2026
28 - 29 March 2026
สวนสาธารณะเทศบาลนครหาดใหญ่, Songkhla province
Saturday, April 18, 2026
สวรรค์ รำไร ULTRA MARATHON 2026
18 - 19 April 2026
Sawan Park (Nong Somboon), Nakhon Sawan province
Thursday, April 30, 2026
Amazean Jungle Thailand by UTMB 2026
Apr 30 - May 3, 2026
Betong Mongkollit Tunnel, Yala province
Sunday, June 28, 2026
Ultra-Trail Khao Kho Season 6
June 28, 2026
เบิร์ดแลนดรีสอร์ท อ.เขาค้อ, Phetchabun province
Saturday, July 4, 2026
Khaolangbann Trail 2026
4 - 5 July 2026
Thung Samo Subdistrict Administrative Organization, Phetchabun province
Saturday, July 25, 2026
Sukhothai 100 Ultra Marathon 2026
25 - 26 July 2026
โรงเรียนชัยมงคลพิทยา, Sukhothai province
Saturday, August 1, 2026
AKHA Trail 2026
1 - 2 August 2026
Ban Pha Hee School, Chiang Rai province
Sunday, September 6, 2026
Jungle-Trail Khao Eto. 2026
September 6, 2026
Khao Ito Waterfall Recreational Forest Forest in Muang Doem, Mueang Prachin Buri District, Prachin Buri province
Saturday, October 10, 2026
Nan Mountain Trail 2026
10 - 11 October 2026
Prakit Vejchasak School, Na Noi District, Nan province