[1][failed verification] For the marathon, the runners will need to complete 26 miles in the allotted time.
Carlsbad is part of North San Diego County and is home to residents.
The race, which takes place in January, offers runners views of the Pacific Ocean as they run down the coast.
Those runners that participate in the full marathon will be eligible for the Triple Crown once they have finished the race.
The other two races they must complete include one in La Jolla in April and the last in San Diego in August.