Grizzly Peak Century Ride
- Date Sun 3rd May 2026
- Time 6:30AM PDT
- Location Moraga, California
- Price $60.00 - $100.00
- Races 6 races
- Distances Ultra
Event summary
Get ready for an exhilarating day of cycling at the Grizzly Peak Century Ride on Sunday, May 3rd, 2026, set against the stunning backdrop of Moraga in Contra Costa County. This exciting event offers a variety of routes to challenge cyclists of all levels, with four paved options and two thrilling gravel routes. Choose from a 30-mile course featuring approximately 2,000 feet of climbing, a 50-mile route with around 4,400 feet of elevation gain, a 75-mile trek that includes about 6,200 feet of ascent, or tackle the ultimate 100-mile challenge with nearly 9,000 feet of climbing. For gravel enthusiasts, the options include a 70K route with approximately 3,900 feet of climbing and a 100K route that boasts around 6,100 feet of elevation. Whether you're a seasoned cyclist or a newcomer looking to push your limits, the Grizzly Peak Century Ride promises an unforgettable adventure in the beautiful hills of Moraga! Don’t miss out on this fantastic opportunity to embrace the thrill of cycling in a breathtaking setting.
Organiser's Description
THERE ARE FOUR PAVED ROUTES AND TWO GRAVEL ROUTES TO CHOOSE FROM, ALL OF THEM VERY HILLY:
30 MILES (~2000 FT OF CLIMBING)
50 MILES (~4,400 FT OF CLIMBING)
75 MILES (~6,200 FT OF CLIMBING)
100 MILES (~9,000 FT OF CLIMBING)
70K GRAVEL (~3,900 FT OF CLIMBING)
100K GRAVEL (~6,100 FT OF CLIMBING)
30 MILES (~2000 FT OF CLIMBING)
50 MILES (~4,400 FT OF CLIMBING)
75 MILES (~6,200 FT OF CLIMBING)
100 MILES (~9,000 FT OF CLIMBING)
70K GRAVEL (~3,900 FT OF CLIMBING)
100K GRAVEL (~6,100 FT OF CLIMBING)
Races
-
30 Miles
Sun 3rd May 2026 (9:30AM PDT)
$60.00
The 30 mile course has about 2,000 feet of climbing, so it isn't easy! -
50 Miles
Sun 3rd May 2026 (7:30AM PDT)
$90.00
The 50 mile course has about 4,400 feet of climbing. It is the heart of the 75 mile course but skips the northern portion. It offers plenty of climbing and great views. From the start at St Mary's College it climbs the east side of the Oakland-Berkeley hills via Pinehurst Road, then follows the ridge up and over Grizzly Peak and into Tilden Park to the rest stop at Island Picnic Area. It then continues on the ridge and around the north end of the Berkeley Hills to Castro Ranch Road. Then it's on to the Three Bears with a rest stop at Briones Regional Park. Finally, relatively easy riding on Moraga Way takes you back to the start for the post-ride meal. -
75 Miles
Sun 3rd May 2026 (7:30AM PDT)
$95.00
The 75 mile (actually about 73 mile) course with about 6,200 feet of climbing is our most popular route. From the start at St Mary's College it climbs the east side of the Oakland-Berkeley hills via Pinehurst Road, then follows the ridge up and over Grizzly Peak and into Tilden Park to the rest stop at Island Picnic Area. It then heads north to the edge of the Bay and the Carquinez Strait to the rest stop at Port Costa. From there it climbs McEwen Road for a run down into Franklin Canyon and Alhambra Valley, then over Pig Farm Hill and through the hills around Briones Reservoir to the rest stop at Briones Regional Park. Finally, relatively easy riding on Moraga Way takes you back to the start for the post-ride meal. -
100 Miles
Sun 3rd May 2026 (6:30AM PDT)
$100.00
The 100 mile course has roughly 9,000 feet of climbing. The route starts with an early morning south loop to the Ivy Park rest stop. Then it climbs the east side of the Oakland-Berkeley hills via Pinehurst Road, and follows the ridge up and over Grizzly Peak and into Tilden Park to the rest stop at Island Picnic Area. It then heads north to the edge of the Bay and the Carquinez Strait to the rest stop at Port Costa. From there it climbs McEwen Road for a run down into Franklin Canyon and Alhambra Valley, then over Pig Farm Hill and through the hills around Briones Reservoir to the rest stop at Briones Regional Park. Finally, relatively easy riding on Moraga Way takes you back to the start for the post-ride meal. -
70K (Gravel)
Sun 3rd May 2026 (7:30AM PDT)
$90.00
The 70K gravel route explores some of the greatest hits in our wonderful East Bay Regional parks. The 70K route is identical to the 100K route without the early morning loop through Lake Chabot Park, so you should have some company on the trails. After a 4 mile paved lead-in, you'll hit the dirt to traverse Redwood Park on Eastridge Trail. Then enjoy the paved Skyline Drive and our namesake Grizzly Peak Blvd enroute to Seaview and other trails in Tilden Park. After the rest stop at Island Picnic Area you'll head down Wildcat Creek and then up and over the ridge to join the road riders for the trip back to St Mary's. The course covers about 41 miles with about 3,800 ft of elevation gain. -
100K (Gravel)
Sun 3rd May 2026 (6:30AM PDT)
$100.00
The 100K gravel route explores some of the greatest hits in our wonderful East Bay Regional Parks. You'll start with a morning loop through Anthony Chabot Park before the first rest stop. Then traverse Redwood Park on Eastridge Trail and enjoy the paved Skyline Drive and our namesake Grizzly Peak Blvd enroute to Seaview and other trails in Tilden Park. After the rest stop at Island Picnic Area you'll head down Wildcat Creek and then up and over the ridge to join the road riders for the trip back to St Mary's. The course covers about 61 miles with about 6,000 ft of elevation gain. This route will challenge you while helping sharpen your early season fitness and affording you the beauty of the East Bay.
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Location
St. Mary's College, 1928 St. Marys Rd., Moraga, 94575, CA, United States
Grizzly Peak Century Ride
