Experience the Black Diamond Mines and Contra Loma Regional Parks!
All courses will have hills, the most challenging reserved for the half marathon runners! 5K and 10K will run around the lagoon on the Shore and Lake View trails. The 10K will go into Black Diamond Mines a short ways, while the half marathon will go deeper and get into some great single track in the heart of old mining operations there.
Course will be almost entirely on dirt trails.
As always, we welcome all levels of runners. Hikers/walkers, too.
2018 START TIMES
For half marathon participants who wish to hike the course and take more than 3.5 hours, we will offer a "Hiker Division" start at 7:00 am. Those starting at 7:00 should carry water as the first and second aid stations might not be 100% up and running, depending on the hikers speed. Hiker starts will not be eligible to win the race or for age group awards, but will be listed as official finishers in the Hiker Division and will still receive finisher medals.
All courses include rolling hills, the most challenging saved for the half marathoners!
Because of the limitations of trails, the distances run slightly long for all races. Specifically:
5K: 3.27 miles
10K: 6.64 miles
Half Marathon: 13.49 miles
COURSE MAPS + ELEVATION
(Click on maps to view larger)
Participants can pick up a copy of their appropriate course map on race day.
Each course will be marked with colored ribbons, signs and flour, so that runners know they are on the correct course.
COURSE TIME LIMITS
The half marathon has a 4.5 hour time limit to finish the course.
There are also the following cut-offs on the course:
Cut-Off for Aid Station #4 (mile 10)
Half runners must reach the 4th aid station (mile 9.88) by 11 am.
As with all of our races, water stations will be fully stocked with water, sports drink, gels, pretzels, candy, etc.
Water stations will be approximately 2-3 miles apart, as trail access allows.
Runners who may need more water (and all half marathon runners), should carry their own water bottle or hydration pack.