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Chesebro Half Marathon
HOT! This race always sells out. Sign up early to reserve your space! This is a unique run that traverses both road and trails. It wanders through Old Agoura down Chesebro Road and onto the Cheeseboro Canyon Trail in the Santa Monica Mountains National Recreation Area. (Yes, the road is Chesebro and the trail is Cheeseboro). This race is capped and will sell out.
 Registration for the Chesebro Half Marathon opens 10/30/14 at 10:30 a.m. 


   Best Half Marathon


Chesebro Half Marathon Elevation Map

Highest point = 1728 ft. Lowest point = 848 ft.
Difference between highest and lowest = 880 ft.


Half Marathon map
Chesebro Half Marathon Course Map
Note: Click on the first map to see an interactive satellite view of the course with mile markers. The second map covers the trail portion.

Half Marathon map

Chesebro Half Marathon

This is an unique run that traverses both road and trails. It wanders through Old Agoura down Chesebro Road and onto the Cheeseboro Canyon Trail in the Santa Monica Mountains National Recreation Area. Important, please note: If the National Park Service decides to close all or part of the trails, an alternative half marathon road route will be run instead.

Course time limit is 3:30 hours. That's 16:02 pace per mile. Start time is 7 a.m. If you are slower, you are welcome to finish, but there will be no course support (take a map with you) and you may not receive an official finish time.

Entrants must reach the 3 mile mark at the Cheeseboro Canyon National Recreation Area entrance in 50 minutes or less. Course support through the trails cuts off for those reaching the three mile mark in more than 50 minutes. Please note: If you don't reach mile 3 in less than 50 minutes, you are on your own.

The course starts on Carell (at least a 10 minute uphill walk from the registration tables in Chumash Park -- allow plenty of time to get to the start and remember you get to run down that big hill). On race day, look for the signs directing you to the START. This is a downhill start. Head south on Carell and then head west on Thousand Oaks Blvd. Left on Argos. Right on Valley Heights. Follow into Rock Tree and the road turns to the left. Left on Medea Valley Dr. adjacent to Chumash Park. Right on Parkheath. Right on Argos. Head east (left) on Driver. Long straight, flat stretch east out to Chesebro Rd. Left on Chesebro Rd. Turn right and enter the Santa Monica Mountains National Recreation Area off Chesebro Rd. (See second map). From the start to the trail is generally all downhill, flat and some mild ascent.

On the trails watch out for mountain bikers, horses, snakes and insects. Whatever you bring in the trail, you must bring out. Please do not throw your trash on the trails. Look for volunteers stationed with trash bags to drop your water bottles or energy gel packs.

Wind through parking lot to the start of Cheeseboro Canyon Trail. Follow Cheeseboro Canyon Trail (fire road) through Sulphur Springs. When you pass the big rock at the Sulphur Springs sign the trail changes to single track. Follow Sulphur Springs Trail to Shepherd's Flat. Turn left on Sheep Corral Trail. Most of the climbing on the route is on the Sheep Corral Trail, peaking right before the Palo Comado Canyon Trail. Left on Palo Comado Canyon Trail and enjoy the significant downhill. Then right on the Doubletree Connector climbing to Doubletree Rd./Sunnycrest Dr. exit of park. Turn left on Sunnycrest Dr. Quick uphill followed by major downhill. Follow to Kanan Rd. Turn left on Kanan Rd. Left on Thousand Oaks Blvd. Right on Argos St. Right into finish chute in Chumash Park.

Course support:
Water stations at approximately or near:
Mile 1 (In front of Agoura High School). Water in cups.
Mile 3 (At the entrance to Cheeseboro Canyon National Recreation Area) Water in cups.
Mile 6 (On the trail at the big rock at Sulphur Springs) Water in bottles.
Mile 8.5 (On the trail where Sheep Corral Trail meets Palo Comado Canyon Trail) Water in bottles.
Mile 10.5 (At the trailhead exit at Doubletree Rd./Sunnycrest Dr.)
Aid station at approximately Mile 10.5 includes:
 Toilet
 Water
 Electrolyte drink: PowerBar Ironman Perform Lemon-Lime
 Clif Shot Energy Gel: Razz, Citrus, Vanilla, Mocha

From the feedback we get, many appreciate the aid station at Mile 10.5 and others have asked why there isn't one available earlier. The answer is that we cannot provide anything but water on the trail portion of the course. If you desire gel or sports drink prior to Mile 10.5, we suggest you carry it with you. However, whatever you bring in the trail, you must bring out. Please do not throw your trash on the trails. LEAVE NO TRACE!

Mile markers posted on the road portion (Miles 1, 2, 3, 11, 12, 13), not on the trail portion.

Toilets:
At Chumash Park
At Thousand Oaks Blvd. & Carell Ave. on the way to the start (there are no toilets at the start line)
At the entrance to the trailhead near Mile 3.25 (look for brown/tan building on your right with two doors).
At the trail exit at Doubletree Rd./Sunnycrest Dr.

Course officials, National Park Service crew and Malibu Mountain Rescue Team positioned throughout course.