California 100-Mile Century Rides & Tours 2026–2027 Calendar | Threshold Cycling
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California 100-Mile Century Rides & Tours 2026–2027

Verified calendar of 100-mile century rides, metric centuries, and scenic road tours scheduled across California.

πŸ“… Sync Century Ride Calendar (.ics)
πŸ“… 10 Upcoming Events ⭐ 7 Marquee Monuments ⛰️ Avg Vert: 7,443 ft πŸ“ Avg Distance: 123 mi πŸ›‘οΈ 100% Active Links
← All California Events πŸͺ¨ Gravel Races & Grinders 🚴 Gran Fondos & Sportives πŸ’― 100-Mile Century Rides & Tours 🚡 Mountain Bike Epics & XC Races 🏁 Road Races & Criteriums
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California 100-Mile Century Rides & Tours

Showing 10 verified events
century βœ“ Verified

Knoxville Double Century

πŸ“… Sep 26, 2026 πŸ“ Fairfield, CA
πŸ“ 200 mi

Official registered century event in Fairfield, CA. Direct registration on BikeReg....

Register on BikeReg β†— Official Site β†—
gravel βœ“ Verified

Grizzly Gravel & Century Charity Ride

πŸ“… Oct 3, 2026 πŸ“ North Fork, CA

Official registered cycling event in North Fork, CA. Direct registration on BikeSignUp....

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century βœ“ Verified

BEST OF THE BAY Double Century

πŸ“… Oct 3, 2026 πŸ“ Castro Valley, CA
πŸ“ 200 mi

Official registered century event in Castro Valley, CA. Direct registration on BikeReg....

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century ⭐ Marquee Monument βœ“ Verified

Solvang Spring Century

πŸ“… Mar 13, 2027 πŸ“ Solvang, CA
πŸ“ 100 mi ⛰️ 4,500 ft vert

Santa Ynez Valley vineyards, historic Danish architecture, and coastal hills....

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century ⭐ Marquee Monument βœ“ Verified

Tierra Bella Bicycle Tour

πŸ“… Apr 17, 2027 πŸ“ Gilroy, CA
πŸ“ 100 mi ⛰️ 5,200 ft vert

South Bay classic touring Henry Coe State Park foothills and reservoirs....

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gran fondo ⭐ Marquee Monument βœ“ Verified

Levi's GranFondo

πŸ“… Apr 17, 2027 πŸ“ Santa Rosa, CA
πŸ“ 100 mi ⛰️ 9,500 ft vert

Sonoma County's premier coastal road monument climbing King Ridge down to the Pacific....

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century ⭐ Marquee Monument βœ“ Verified

Grizzly Peak Century

πŸ“… May 2, 2027 πŸ“ Moraga, CA
πŸ“ 100 mi ⛰️ 8,500 ft vert

San Francisco East Bay hills, redwood groves, and Mount Diablo views....

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century ⭐ Marquee Monument βœ“ Verified

Strawberry Century

πŸ“… May 15, 2027 πŸ“ Watsonville, CA
πŸ“ 100 mi ⛰️ 3,800 ft vert

Pajaro Valley berry fields, eucalyptus groves, and Monterey Bay coastline....

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century ⭐ Marquee Monument βœ“ Verified

Death Ride - Tour of the California Alps

πŸ“… Jul 10, 2027 πŸ“ Markleeville, CA
πŸ“ 103 mi ⛰️ 14,000 ft vert

Conquering Monitor Pass, Ebbetts Pass, and Pacific Grade in the Sierra Nevada....

Register β†— Official Site β†—
gran fondo ⭐ Marquee Monument βœ“ Verified

Mammoth Gran Fondo

πŸ“… Sep 11, 2027 πŸ“ Mammoth Lakes, CA
πŸ“ 102 mi ⛰️ 6,600 ft vert

High Sierra road riding along the eastern slope with views of Mono Lake and the Minarets....

Register β†— Official Site β†—

πŸ—ΊοΈ Explore 100-Mile Century Rides & Tours Across All 50 States

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