2027 Multiday & Ultramarathon Calendar

Oman Desert Marathon

Bidiyah, Ash Sharqiyah, Oman · Desert

A five-stage, 165 km self-sufficient race across Oman's red, golden, and white dunes, with runners carrying their food and sleeping equipment.

Montane Winter Spine

Edale to Kirk Yetholm, United Kingdom · Mountain

A non-stop winter race along the full 268-mile Pennine Way, crossing exposed moors and national parks from Edale to the Scottish Borders.

Coldwater Hundred — 100 Mile

Estrella Mountain Regional Park, Goodyear, Arizona, USA · Desert

A 101.3-mile desert loop race at Estrella Mountain Regional Park, combining two shorter red loops and three longer blue loops with a 32-hour cutoff.

Edition note: The 2027 event page was current at review but still linked the 2026 runner guide.

Spartanion Tel Aviv 24-Hour

Hayarkon Park, Tel Aviv, Israel · Road

Israel's national 24-hour championship on a fast paved loop in Hayarkon Park, with qualifying standards for the headline race.

Hong Kong 100

Hong Kong · Mountain

A 100 km mountain-trail race through Hong Kong's beaches, country parks, steep ridgelines, and extensive trail network.

Tarawera Ultra-Trail TMiler

Rotorua, New Zealand · Trail

Tarawera's longest race starts at Te Puia in Rotorua, taking runners through the region's forests and lake country over 163 km.

Jackalope Jam

Cat Spring, Texas, USA · Mixed

A timed ultrarunning festival at 7IL Ranch, where runners repeat a flat two-mile out-and-back and can choose events lasting up to 100 hours.

Edition note: The festival begins with the 100-hour race on February 17. The 48-hour race starts February 19 and the 24-hour race February 20; both start at 9:00 AM and finish February 21.

Jackpot Ultras

Cornerstone Park, Henderson, Nevada, USA · Mixed

Aravaipa’s timed-race festival at Cornerstone Park offers 48-hour and 24-hour races alongside shorter timed events and fixed distances.

Edition note: The organizer and registration page confirm February 19–21, 2027. Online entry closes February 14 at 11:59 PM Pacific Time. Recheck the selected race schedule: some shorter-race times differ between the two pages.

Southern Lakes Ultra

Central Otago to Queenstown, New Zealand · Mountain

A six-stage journey of roughly 250 km through Central Otago's lakes, mountains, valleys, forests, and gold-mining country to Queenstown.

Ultra ASIA Race

Mai Châu, Vietnam · Mountain

A four-stage, self-supported 160 km race through the mountains and rice-growing valleys of northwest Vietnam near the Laos border.

Capital Backyard Ultra

Lorton, Virginia, USA · Trail

A high-level backyard ultra at Meadowood Special Recreation Management Area, built for deep performances in a small, highly supported field.

Edition note: The registration page confirms March 20, 2027 at 8:00 AM. One paragraph of the main website instead says March 27. Entry is selective and requires prior ultra experience.

Arizona Monster 300

Patagonia to Superior, Arizona, USA · Desert

A 300.5-mile journey from Patagonia to Superior through Arizona’s Sonoran Desert and mountain terrain, with 19 aid stations and a 150-hour limit.

Edition note: The organizer and registration page agree on March 29–April 4, 2027. Their elevation totals differ, so no single climbing figure is asserted here; use the final runner manual and course files when released.

Delirious WEST 200 Miler

Northcliffe to Albany, Western Australia, Australia · Trail

A 200-mile point-to-point on Western Australia's Bibbulmun Track, crossing tall forests, coastal scrub, dunes, beaches, and ocean cliffs.

Atacama Crossing

San Pedro de Atacama, Chile · Desert

A six-stage, 250 km self-supported race through the Atacama Desert's rock canyons, salt flats, and high-altitude valleys.

NZ Ultramarathon Festival — 6 Day

Hagley Park, Christchurch, New Zealand · Road

A fully catered six-day race on a flat 1.9464 km park loop, part of a ten-day Christchurch festival with 72-, 48-, and 24-hour options.

Bradshaw Brute 100

Black Canyon City to Prescott, Arizona, USA · Mountain

A distinct 99.9-mile point-to-point race within Cocodona race week, climbing from Black Canyon City through Crown King to Prescott with a 38-hour cutoff.

Edition note: The 2027 date and cutoff are published; elevation and surface figures on the event page are labeled from the 2026 course.

Cocodona 250

Black Canyon City to Flagstaff, Arizona, USA · Mountain

A 253.3-mile point-to-point journey through central and northern Arizona, linking desert, historic towns, red rock country, and Flagstaff within a 125-hour limit.

Edition note: The organizer says distance can change with permitting; current elevation, surface, and route figures remain labeled for 2026 and are not final 2027 course specifications.

Tahoe 200

Lake Tahoe, California/Nevada, USA · Mountain

A 200.4-mile loop course around the Lake Tahoe region, using high-elevation mountain terrain, 12 full aid stations, and a 105-hour cutoff.

Western States 100

Olympic Valley to Auburn, California, USA · Trail

A 100.2-mile point-to-point race from Olympic Valley through the Sierra Nevada and foothill canyons to Auburn, with qualification and lottery entry.

Taiping 24 Hour

Taiping, Perak, Malaysia · Road

A fixed-time festival at Taiping Lake Gardens with 24-, 12-, 6-, and 3-hour challenges. Confirm the final endurance-course measurement with the organizer.

Hardrock 100

Silverton, Colorado, USA · Mountain

A high-altitude loop through Colorado's San Juan Mountains from Silverton, with the 2027 edition running counterclockwise and allowing 48 hours to finish.

Cascade Crest 100

Easton, Washington, USA · Mountain

A clockwise 100-mile mountain loop from Easton with more than 23,000 ft of climbing, long Pacific Crest Trail sections, and a 34-hour cutoff.

GOMU 48-Hour World Championship

Skanderborg, Denmark · Road

The 2027 Global Organization of Multi-Day Ultramarathoners 48-hour world championship, hosted by Skanderborg Ultra in Denmark.

Ultra X Rwanda

Ruhondo and Musanze, Rwanda · Mixed

A two-stage, 110 km race through northern Rwanda's volcanic foothills, twin lakes, jungle valleys, and coffee and banana fields.