May ultramarathons

Fast, flat 1.3-mile loops on paved pedestrian paths within Herrin Sports Complex, open grounds backdrop, six-hour timed endurance format

50-mile course through Mohonk Preserve's scenic landscapes in the Hudson Valley

Challenging point-to-point route with technical single tracks, KVR sections, varied terrain, and stretches without aid; boat-supplied aid stations

Lakeside out-and-back route from Folsom Point past Falcon Crest to Salmon Falls, diverse terrain and American River scenery along Folsom Lake

Ultra distance routes along the Mogollon Rim’s singletrack trails at 6,000 feet, panoramic vistas in Rim Country forests, and well-maintained Tonto National sc 

Scenic hills and spring colors of Bedford County’s Highland Rim, competitive road course with decades of racing history through Wartrace and Bell Buckle

Challenging 50k trail route through Spruce Woods Provincial Park, covering Trans-Canada, Epinette, and Yellowquill Trails in Manitoba.

Scenic 3-mile lake loop on single track trails with 200 feet of elevation gain per lap, 12-hour solo or relay format

Rooty, gnarly single-track loop with rolling mountain bike hills on Pocomoke YMCA trails, repeated for 14 hours, flexible rest and aid stations available.

Rugged 100-mile course on ATV trails and forest paths in Androscoggin Riverlands State Park, with technical sections, river views, and constant undulations.

Looped trail course through the scenic Sangre de Cristo Mountains, featuring varied terrain and twelve hours of supported running, hiking, or rucking

Rugged Grayson Highlands singletrack with rocky technical footing, steep climbs, high points, wild ponies, waterfalls, and sweeping two-state vistas.

Historic battlefield route from Mesen to Nieuwpoort, passing war memorials, preserved trenches, cemeteries, and landmarks of the Great War

Demanding Yorkshire ultramarathon via Malham Cove, Malham Tarn and sections of the Pennine Way, with rugged terrain and dramatic scenery

Undulating steppe trails, significant elevation gain, sweeping Ili River views, and dramatic rock formations near Tamgaly Tas, 120 km from Almaty

Fast, runnable 50K on soft dirt trail, with smooth cruising, open landscapes, and Pikes Peak views in southern Douglas County.

Singletrack forest trails through McDonald Forest, spring wildflowers, views of the Cascades and Coast Range, gentle pine needle descent to the finish

5K trail loop each hour for 10 hours, shared start/finish, grassy Basecamp with music and support, 57-minute loop cutoff