The Breathless Agony is a hard climbing century to Onyx Summit, organized by Planet Ultra and starting in Redlands. The 2027 edition is on Saturday, May 1, 2027.
112 miles with 11,500 feet of climbing

Route Profile
Breathless Agony • Climbs
Breathless Agony • Description
The Breathless Agony is a long and hard century. The route includes a dirt road, four passes, and a mountaintop finish at mile 75.
The ride starts in Redlands and leads through a semi-rural area before climbing Jack Rabbit Trail (pass #1, dirt road). After visiting Beaumont, the route leads up Oak Glen Road (pass #2), followed by a descent to Mill Creek Ranger Station.
Here the ride enters San Bernardino National Forest, climbing Mill Creek Road (pass #3), aka Damnation Alley. After visiting Angelus Oaks, Highway 38 continues to lead up to Onyx Summit (pass #4, 8,443 feet). From Onyx Summit it is 38 miles back to the start, most of it downhill.
Breathless Agony • Interactive Map
Breathless Agony • Pictures

Breathless Agony
Photo credit: Breathless Agony
By: Bernd Straehle