Race Info


Saturday, March 24, 2018

Run the Sports Academy Chesebro Half Marathon 
USATF sanctioned 

Start time: 7:00 a.m. 

   Best 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). It's one of the largest trail races in the USA and insanely gorgeous!

 Sports AcademyThe Chesebro Half Marathon is an unique run that traverses both road and trails. It's one of the largest trail races in the USA and always sells out!

Course time limit is 3 hours, 30 minutes. That's about a 16 minute per mile pace. Start time is 7:00 a.m.  *You must reach the trail entrance at Mile 3 in less than 48 minutes in order to continue the race. No strollers. No dogs.

Course Info

The course starts on Carell Ave. (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:

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 and electrolyte drink.
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.) Water in cups, electrolyte drink and energy gel.

Aid station at approximately Mile 10.5 includes: 

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 and turn signs posted on the road portion (Miles 1, 2, 3, 11, 12, 13), not on the trail portion. Course volunteers are stationed at every decision point on the trails.

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.

Course record:

Josh Spiker, 1:11:53 (2009)

Mary Akor, 1:26:57 (2004)

Sports Academy Chesebro Half Marathon Age Group Awards:

Awards to top 3 male and female finishers in 24 age groups. 

  • 18 & under
  • 19-24
  • 25-29
  • 30-34
  • 35-39
  • 40-44
  • 45-49
  • 50-54
  • 55-59
  • 60-64
  • 65-69
  • 70+
Finisher medals for all Sports Academy Chesebro Half Marathon finishers.


Racer Perks

  • Technical running top (men's or women's cut)
  • Stuffed drawstring goodie bag with actual goodies
  • Finisher's Medal
  • LA's #1 Post-Race Party with lots of quality free food and live music.
  • Live Results
  • Free Photos
  • Gorgeous, scenic course runs through a historic national park with a sensational summit view.
  • Five on-course aid stations
  • Free parking
  • Friends or family not ready for the half marathon distance? Options to run the 10K, 5K or Kids Mile
  • Three-day Sports & Fitness Expo
  • Running's #1 Announcer greets you at the finish line at beautiful Chumash Park