Mammoth Gran Fondo
Mammoth Gran Fondo is a gran fondo-style mass-participation ride in Mammoth Lakes, CA, US, scheduled for September 11, 2027, covering roughly 102 miles.
About riding in California
California covers almost every kind of cycling terrain: coastal roads, redwood and wine-country valleys, the steep Sierra Nevada, and hot inland deserts. Mild weather allows year-round riding on the coast, while mountain routes are best from late spring to early fall. Long climbs and dry summer heat inland are common features of its longer events.
Estimated finish times
The route is about 102 miles. Here is the moving time at a steady average speed. It is a flat-ground baseline: climbing, wind, stops at aid stations and group riding all move the real number, so treat it as a starting range.
| Average speed | Moving time |
|---|---|
| 10 mph | 10h 12m |
| 12 mph | 8h 30m |
| 14 mph | 7h 17m |
| 16 mph | 6h 22m |
| 18 mph | 5h 40m |
Most recreational riders average 12–16 mph on rolling terrain in a group, and less on hilly routes.
Plan your ride
Paste the event's RideWithGPS route into the planner (many organizers publish one) to see your projected finish time, the headwind or tailwind you'll face, the temperature range, and how much to eat and drink. The ride date is pre-filled.
Open the Ride Planner · Gran fondo vs. sportive vs. century
Other events nearby
- Eastern Sierra Double Century — June 5, 2027, Bishop, CA, US (38 mi away)
- Death Valley Century — November 14, 2026, Death Valley, CA, US (84 mi away)
- Tour of the California Alps Death Ride — July 10, 2027, Markleeville, CA, US (86 mi away)
- Annual Giro D’ Vino — November 8, 2026, Lodi, CA, US (133 mi away)
Listing sourced from granfondoguide; last verified 2026-10-12. Dates and details can change, so confirm with the organizer before you register or travel.