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Trail Run at Sly Park (Spring)

100 Runner Cap on this race event.

Dates:Saturday, May 11, 2024
Location:Sly Park Recreation Area

4771 Sly Park Rd.
Pollock Pines, CA

(Click here for Google Maps to the Group 2 Camping Area / Start / Finish)
Race Distances:5K, 10K, 8 Mile, Half Marathon, 17 Mile, Trail Marathon, 50K
Start Time:8:00 AM
Overall Cut-Off Times:9 Hours

About the Race

This event is held at the Sly Park Recreation Area in Pollock Pines, and it’s held under special use permit with the El Dorado National Forest. The course follows the trails surrounding Jenkinson Lake through endless pine trees and buttery horse trails. This race is held three times a year to offer runners the experience of running in this beautiful park through different seasons.


This Spring race will Start / Finish at the Group 2 Camping Area, NOT the event center as it has been in years past. Please enter the Group 2 Camping Area by using this Google Maps Link

Volunteers are needed to help with aid stations.
Everyone who helps out gets a free future race!


DISTANCE BY 10/31/23BY 1/31/24BY 5/10/245/11/24
8 Mile$70$75$80$85
Half Marathon$80$85$90$95
17 Mile$90$95$100$105
Trail Marathon$100$105$110$115
Prices do not include UltraSignup processing fees
  • Active Military & First Responders receive a 15% discount. Please email to process your registration discount.
  • Entry fees are non-refundable, but the full registration amount (minus processing fees) may be transferred to another future TCTRuns race event by contacting at least 24 hours before the scheduled event.
  • Runners may purchase a Troy’s California Trail Runs Sport-Tek technical fabric shirt during the registration process, or at the event supply permitting. All shirts are gender-specific and come in sizes ranging from ladies XS all the way to mens XXL and youth S to XL.
Online registration is available through the evening before the race.
Please print the form, fill it out, and mail it to us with the enclosed registration fee.
Race day registration is available beginning at 7:00 AM.


  • 6:50 AM — Registration opens
  • 7:45 AM — Trail briefing
  • 8:00 AM — Start of all races

Primary Cutoff Times

12:30 PM @ Mile 17, Sly Park Event Center / Start Finish, End of 17 Mile Race

12:45 PM Race Sweep Begins

3:30 PM @ Mile 26.2, Sly Park Event Center / End of Trail Marathon / Start of Final 50K Loop

5 PM Race Over

Course Information

Most of the trails are single track with gently rolling hills, and other parts are flat and wide. Small portions of the course are on pavement. All of the races start with an easy quarter-mile downhill on a gravel road followed by a very steep quarter-mile climb on a single track trail. After the first half-mile, the trails are relatively flat as they follow near the shore of Jenkinson Lake in a counterclockwise direction. There are some technical sections with plenty of rocks and roots.

Additional Course Map detail and information is available via the Distance Link.

ALL DISTANCES WILL START AT THE GROUP 2 CAMP SITE – REFER TO INSTRUCTIONS ABOVE. THIS IS 2/10s of a Mile away from the original Start / Finish line at the Event Center.

The 5K (538Ft. Ascent)

A simple out and back loop course that runs alongside all of the other distances for the first 2.5 kilometers (marked with yellow ribbons).

The 10K (866Ft. Ascent)

The 10K is an out-and-back course that follows the same hiking trail as every longer race and turns around right before the Park Creek bridge at the northeast edge of the lake (marked with pink ribbons).

The 8 Miler (984Ft. Ascent)

The 8 miler course makes one complete loop around the lake on the hiking trail (marked with pink ribbons).

The Half Marathon (1,739Ft. Ascent)

The Half Marathon follows the same course as the 8 milers and runs an additional 5.1-mile out and back path.

The 17 Miler (2,539Ft. Ascent)

The 17 miler makes two complete counterclockwise loops around the lake. The first loop follows the 8-mile course on the hiking trail, and the second loop follows the 9-mile horse trail, which sometimes joins the hiking trail for short distances (the first loop marked with pink ribbons, second loop marked with orange ribbons, additionally the second loop is marked by EID Park Staff blue plastic diamonds on trees).

The Trail Marathon (4,032Ft. Ascent)

The Trail Marathon makes two complete counterclockwise loops around the lake, followed by one clockwise loop. The first loop follows the 8-mile course on the hiking trail, and the second loop follows the 9-mile horse trail. The last loop follows the horse trail backward (the first loop marked with pink ribbons, second and third loops marked with orange ribbons, additionally the second and third loop is marked by EID Park Staff blue plastic diamonds on trees).

The 50K Ultra (5,000Ft. Ascent)

The 50K Ultra follows the same course as the 17-mile race, which has a cutoff time of 12:45 PM. After 17 miles, runners turn around and follow the 9-mile horse trail loop clockwise around the lake. The cutoff time for 26 miles is 3:30 PM. A final 5.1-miles, it out & back and completes the full distance (the first loop marked with pink ribbons, second and third loops marked with orange ribbons, additionally the second and third loop is marked by EID Park Staff blue plastic diamonds on trees).

50k Cut-Off Times:

  • 5K – 1 Hour
  • 10K – 1 Hour & 30 Minutes
  • 8 Mile – 2.5 Hours
  • Half Marathon – 4 Hours
  • 17 Mile – 4 Hours & 45 Minutes
  • Trail Marathon – 7 Hours & 30 Minutes
  • 50K – 9 Hours (Enforced)Aid Stations

Aid Stations

There are two aid stations located on opposite ends of the lake, which all distances over the 10K will hit at least once, if not several times. One is at the start/finish area, and the other is at the Hazel Creek area. The 5K and 10K races do not reach the Hazel Creek area, so there is no aid station on the course for those distances.

Directions and Parking

From Highway 50, take the Sly Park Rd exit (Exit 60). Go south on Sly Park Rd for about five miles, and turn left on Mormon Emigrant Trail. After passing over a small dam and spillway, there will be two driveways on the left side of the road. Turn into the second driveway leading to the event center and park in the gravel lot. A sign will be posted. Parking is free at the Event Center.

Race registration and check-in is located inside the event center. The start/finish area is located across Mormon Emigrant Trail from the event center and down a gravel road a little bit. Bathrooms are available at the event center and along the course in the campground areas.

(Click here for Google Maps to the Event Center)

Please CARPOOL. Parking is limited at the Event Center.

Parking Locations:

ATTENTION, if parking at Event Center, a LARGE EMERGENCY VEHICLE will need access to drive throughout the entire EVENT CENTER AREA. We Must Always leave them plenty of ACCESS to drive through & Turn Around wherever needed.


All runners receive a medal for finishing the race.

Travel and Accommodations

Troy’s California Trail Runs is partnered with iWeekender to provide comprehensive travel packages that include accommodations, air travel, and rental cars.

Westhaven Inn
5658 Pony Express Trail
Pollock Pines, CA 95726
(530) 644-7800

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