Breathless Agony

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
Breathless Agony • Route Profile
Route Profile

Breathless Agony • Climbs

Cat. 1: Mile 44
Cat. 2: Mile 29 and 66
Cat. 3: Mile 17
Cat. 4: Mile 7 and 84

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
Breathless Agony
Photo credit: Breathless Agony
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See Also: Gran Fondos & Centuries and King of the Mountains Century Challenge