50K ultramarathons

Hilly 50KM double-loop trail race on runnable gravel and mixed tracks, seven major climbs per loop, river valley ascents, and rugged scenic terrain

Mountain routes with multiple distances, ultra challenges, and scenic views at the foot of Turbacz, the highest peak in the Gorce Mountains

Rocky out-and-back course through Bear Valley and Lake Spaulding, steep ascents on Signal Peak loop, challenging terrain with rugged segments

Mountain trail course with 5,000 feet of climbing over three ridges and panoramic views throughout the 50-mile route

Technical singletrack and rolling fire roads through shaded oak groves and exposed hillsides, with sweeping Bay Area views and a challenging elevation profile

16.5-mile loops through Finger Lakes National Forest, single-track trails, grassy pastures, dirt and paved roads, 1292 feet elevation gain per loop

High-elevation 50k traversing Grand Targhee's renowned trails and ridgelines, with sweeping mountain views

Scenic Sammamish River Trail out-and-back with steep early descent, bridge crossing, fields at 60 Acres Park, and multiple parkway turns

Street-to-summit route from Sentul City trails into Mount Gede-Pangrango, with rolling sections, steep technical climbs, rainforest and alpine valleys.

Liberty Trail route through rolling hills, lush countryside, and historic rural paths from Ham Hill to Lyme Regis with challenging elevation changes.

Technical single track climbs on Bells Mountain, stream crossings, waterfalls, and views of Mt. St. Helens along the Tarbell Trail to Moulton Falls Arch Bridge.

Scenic waterfront course from Magnolia to Lincoln Park, blending trails and urban routes with views of Elliott Bay, Myrtle Edwards Park, and city landmarks

Sea-level start with a challenging ascent to Mount Fuji summit, significant elevation gain, acclimatization hike, and post-race recovery at Lake Kawaguchi

Rugged mountain terrain, steep climbs, and Olympic ski-resort scenery in Chongli’s alpine landscapes

Forested singletrack, open ski hill ascents, and technical descents over five 10k laps at Cannonsburg Ski Area

Night race on runnable jeep roads and technical terrain at Twin Mountains Offroad Park, with frequent loops and hot, humid conditions.