Calendar Blazer Awards Volunteer Runners' Reviews Discounts
Date: Sunday, September 7, 2014
Time: 8:00 a.m.
Events: 50 Km
Marathon
Half Marathon
10 mi
4 mi
  • Race Infomation
  • Registration
  • Race Day
  • Course Information
  • Results & Records
  • Photos & Reports

Location
Diablo State Park, Mitchell Canyon Road, Clayton CA 94517
Parking is $6 per vehicle.
Driving Directions
Course
Mount Diablo provides spectacular views of the San Francisco Bay Area and surrounding valleys. The 4 mile course is relatively flat and fast within Mitchell Canyon. The longer events are mountainous and very scenic.
(Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)
Weather
Lodging
Bib Number & Shirt Pick-Up
Sun, Sep 7 --- Starting at 7:00 a.m. at the Mitchell Canyon Trailhead.
Time Limit
There is a 9-hour time limit for all distances.
Aid Stations
Fully-stocked aid stations every 3 - 5 miles. You can expect fresh fruit, salty snacks, assorted candy, water, and Clif Shot Electrolyte sports drink. It is highly recommended that runners carry at least 20 oz. of water between aid stations.
Awards
T-shirts will be given to all pre-registered runners. Award medals are given to the 1st female and male finishers overall and top three finishers in each age group. All finishers will receive a medal and 50 Km finishers will also receive a custom coaster.
Online RegistrationMail Registration
(Pre-registration through 5 p.m .Friday, Sep 5th.)
Entry Fees
(Add $10 after 8/24/14. Add $15 at check-in.)
Hi-tech shirt included!
  • 4 mi - $35
  • 10 mi - $40
  • Half Marathon - $45
  • Marathon - $60
  • 50 Km - $65
  • You might qualify for a Coastal discount, click to learn more.
    If you would like to make amendments* to your registration, please Contact Us as soon as possible.
    *Cancellation Policy
    Directions
    The Diablo Trail Run will be held at 8:00 a.m. on Sunday, Sep 7th at the Diablo State Park, Mitchell Canyon Trailhead. Parking is $6 per vehicle.
    Parking is limited at Mitchell Canyon. We encourage you to carpool with other runners. Vehicles with 2 or more participants will park at the Mitchell Canyon parking lots near the start/finish. All others will be directed to park 1.5 miles from the start along Pine Hollow Road. We will have a shuttle running between Pine Hollow Road and Mitchell Canyon before and during the event. If you're driving alone, you're welcome to pick up a fellow runner at Pine Hollow Road and then park near the start at Mitchell Canyon.
    Click on the blue icon for driving directions:

    View Diablo Trail Run in a larger map
    Weather: Clayton
    Bib and Shirt Pick Up:
    Sun, Sep 7 --- Starting at 7:00 a.m. at the Mitchell Canyon Trailhead.

    Course
    The course will be marked with ribbon approximately every 200 yards and color coded as follows:
    • 4 mi – Yellow (out/back along Mitchell Canyon)
    • 10 mi – Orange (turnaround at Juniper, 1st aid station)
    • Half Marathon – Orange (turnaround at Summit)
    • Marathon – Orange + Green Summit Loop + Pink Loop + Orange to Finish
    • 50 Km – Orange + Green Summit Loop + Pink LoopGreen Summit Loop (on return at 21 miles) + Orange to Finish
    The most important course marking is the polka-dot ribbon. It indicates a turn at an intersection. There will be at least two polka-dot ribbons before a turn in the course. The polka-dot ribbon will be placed before and on the same side as the required turn. As you approach an intersection, look for any polka-dot ribbon before the turn. Waiting until you're in the intersection to determine the correct direction may be confusing and you may go the wrong way. After you complete the turn, there will be orange, yellow, and/or pink ribbon indicating the correct route. We also hang blue ribbons at critical junctions indicating the wrong way. Blue is bad!
    If you don't see your respective ribbon for 3-4 minutes, you are off course. If you get off course, you should retrace your path until you find where you left the course and then continue along the marked course.
    Please be courteous on the trail. If you're passing another runner or hiker, announce "on your left" as you approach.
    Headphones are allowed on dirt road sections only. Please do not wear headphones on single-track trail, while crossing paved roads, when getting aid at aid stations, or while crossing the finish line.
    Your bib number indicates the distance that you're running. If you want to change your distance, please send us an e-mail or let us know by check-in, at the latest.
    Many of the parks in California have poison oak. We recommend staying on the trail and washing with Tecnu after your trail run. Occasionally, bees or yellow jackets may be active and precautions should be taken if you're allergic.
    No dogs allowed on the course. Please don't leave pets in your vehicle.
    Aid Stations
    Fully-stocked aid stations every 3 - 5 miles. You can expect fresh fruit, salty snacks, assorted candy, water, and Clif Shot Electrolyte sports drink. If you would like to be sure that you have any other specific item at the event, you should carry it with you. Additionally, it is highly recommended that runners carry at least 20 oz. of water between aid stations.
      Distance (mile) Next Aid (mile)
    4 mile    
    1. Mitchell Canyon (Finish)
    3.9
     
    10 mile
    1. Juniper Campground
    5.1
    5.1
    2. Mitchell Canyon (Finish)
    10.2
     
    Half Marathon
    2. Juniper Campground
    5.1
    3.2
    2. Juniper Campground
    8.3
    5.1
    3. Mitchell Canyon (Finish)
    13.4
     
    Marathon
    1. Juniper Campground
    5.1
    4.3
    2. Juniper Campground
    9.3
    4.2
    3. North Gate
    13.5
    4.6
    4. Rock City
    18.1
    2.9
    5. Juniper Campground
    21.0
    5.1
    6. Mitchell Canyon (Finish)
    26.1
     
    50 Km
    1. Juniper Campground
    5.1
    4.3
    2. Juniper Campground
    9.3
    4.2
    3. North Gate
    13.5
    4.6
    4. Rock City
    18.1
    2.9
    5. Juniper Campground
    21.0
    4.3
    6. Juniper Campground
    25.3
    5.1
    7. Mitchell Canyon (Finish)
    30.4
    Post-Run Activities
    There will be post-run snacks at the finish line.
    Award medals are given to the 1st female and male finishers overall and top three finishers in each age group. All finishers will receive a medal and 50 Km finishers will also receive a custom coaster.
    Message Board
    The Coastal Message Board is for information about Coastal events. Please post messages regarding places to eat or stay, sharing rides with fellow runners, etc. Go to Message Board (opens in a new window).
    Check In
    Please arrive 30 min before your event to receive your bib number.
     
    Coastal Trail Runs
    events@CoastalTrailRuns.com
    Course Surface
    Course Map
    Elevation Profiles
    Course Description
    Course Surface (Elevation changes determined using an Avocet altimeter.) Top of Page
    Distance Elevation Gain Single Track Dirt Road Asphalt
    4 mi 400'   100%  
    10 mi 2,420'   100%  
    Half Marathon 3,420' 21% 76% 3%
    Marathon 6,760' 28% 70% 2%
    50 Km 7,990' 38% 60% 2%
    Course Map (click on image for a bigger map.) (Phil Schaefer's cool Google Earth map.) Top of Page
    Elevation Profiles Top of Page
    4 mi
    Elevation Gain: 400'
    (Per Avocet Altimeter)
    10 mi
    Elevation Gain: 2,420'
    (Per Avocet Altimeter)
    Half Marathon
    Elevation Gain: 3,420'
    (Per Avocet Altimeter)
    Marathon
    Elevation Gain: 6,760'
    (Per Avocet Altimeter)
    50 Km
    Elevation Gain: 7,990'
    (Per Avocet Altimeter)
    Course Description Top of Page
    Direction Course Color Distance (mile) Aid Station (mile)
    Segment Cummulative Location Next
                 
    4 mi
      Start: Mitchell Canyon Trailhead          
    Go SOUTH Mitchell Canyon Road Yellow
    1.9
    1.9
    3.9
    Turnaround Mitchell Canyon Road Yellow
    2.0
    3.9
         
        Miles
    3.9
    3.9
         
    10 mi
      Start: Mitchell Canyon Trailhead  
    Go SOUTH Mitchell Canyon Road Pink
    3.5
    3.5
    5.1
    Turn RIGHT Deer Flat Road Orange
    1.6
    5.1
    Juniper Campground
    5.1
    Turnaround at Juniper Deer Flat Road Orange
    1.6
    6.6
    Turn LEFT Mitchell Canyon Road Pink
    3.6
    10.2
         
        Miles
    10.2
    10.2
         
    Half Marathon
      Start: Mitchell Canyon Trailhead  
    Go SOUTH Mitchell Canyon Road Pink
    3.5
    3.5
    5.1
    Turn RIGHT Deer Flat Road Pink
    1.6
    5.1
    Juniper Campground
    3.2
    Go right, then Turn LEFT Upper Juniper Trail Green
    1.6
    6.7
    Turnaround at Summit Upper Juniper Trail Green
    1.6
    8.3
    Juniper Campground
    5.1
    Turn LEFT Deer Flat Road Pink
    1.6
    9.8
    Turn LEFT Mitchell Canyon Road Pink
    3.6
    13.4
         
        Miles
    13.4
    13.4
         
    Marathon
      Start: Mitchell Canyon Trailhead  
    Go SOUTH Mitchell Canyon Road Pink
    3.5
    3.5
    5.1
    Turn RIGHT Deer Flat Road Pink
    1.6
    5.1
    Juniper Campground
    4.3
    Go right, then Turn LEFT Upper Juniper Trail Pink
    1.6
    6.7
    Turnaround at Summit Summit Trail Pink
    1.7
    8.4
    Turn RIGHT Lower Juniper Trail Pink
    0.9
    9.3
    Juniper Campground
    4.2
    Turn LEFT Deer Flat Road Pink
    0.5
    9.8
    Turn LEFT Burma Road Pink
    3.7
    13.5
    North Gate
    4.6
    Turn LEFT Buckeye Trail Pink
    1.2
    14.7
    Turn RIGHT Stage Road Pink
    0.5
    15.2
    Turn LEFT BBQ Terrace Pink
    1.0
    16.2
    Turn RIGHT Secret Trail Pink
    0.6
    16.8
    Turn LEFT Wall Point Road Pink
    1.1
    17.9
    Go STRAIGHT S. Gate Rd./Wall Point Rd. Pink
    0.3
    18.1
    Rock City
    2.9
    Turnaround at Rock City S. Gate Rd./Wall Point Rd. Pink
    0.3
    18.4
    Turn RIGHT Summit Trail Pink
    1.7
    20.1
    Turn LEFT Lower Juniper Trail Pink
    0.9
    21.0
    Juniper Campground
    5.1
    Turn LEFT Deer Flat Road Pink
    1.6
    22.6
    Turn LEFT Mitchell Canyon Road Pink
    3.6
    26.1
         
        Miles
    26.1
    26.1
         
    50 Km
      Start: Mitchell Canyon Trailhead  
    Go SOUTH Mitchell Canyon Road Pink
    3.5
    3.5
    5.1
    Turn RIGHT Deer Flat Road Pink
    1.6
    5.1
    Juniper Campground
    4.3
    Go right, thenTurn LEFT Upper Juniper Trail Pink
    1.6
    6.7
    Turnaround at Summit Summit Trail Pink
    1.7
    8.4
    Turn RIGHT Lower Juniper Trail Pink
    0.9
    9.3
    Juniper Campground
    4.2
    Turn LEFT Deer Flat Road Pink
    0.5
    9.8
    Turn LEFT Burma Road Pink
    3.7
    13.5
    North Gate
    4.6
    Turn LEFT Buckeye Trail Pink
    1.2
    14.7
    Turn RIGHT Stage Road Pink
    0.5
    15.2
    Turn LEFT BBQ Terrace Pink
    1.0
    16.2
    Turn RIGHT Secret Trail Pink
    0.6
    16.8
    Turn LEFT Wall Point Road Pink
    1.1
    17.9
    Go STRAIGHT S. Gate Rd./Wall Point Rd. Pink
    0.3
    18.1
    Rock City
    2.9
    Turnaround at Rock City S. Gate Rd./Wall Point Rd. Pink
    0.3
    18.4
    Turn RIGHT Summit Trail Pink
    1.7
    20.1
    Turn LEFT Lower Juniper Trail Pink
    0.9
    21.0
    Juniper Campground
    4.3
    Go right, then Turn LEFT Upper Juniper Trail Blue
    1.6
    22.6
    Turnaround at Summit Summit Trail Blue
    1.7
    24.3
    Turn RIGHT Lower Juniper Trail Blue
    0.9
    25.3
    Juniper Campground
    5.1
    Turn LEFT Deer Flat Road Pink
    1.6
    26.8
    Turn LEFT Mitchell Canyon Road Pink
    3.6
    30.4
         
        Miles
    30.4
    30.4
        KM
    48.9
                 
    Results '10, '11, '12, '13
    Course Records
    4 mi Jordan DeVito, 17, Antioch, CA ('10) 26:06
      Lisa Penzel, 47, Oakland, CA ('12) 28:19
    10 mi Brendan O'Brien, 45, San Francisco, CA ('12) 1:26:55
      Tori Tyler, 26, Danville, CA ('13) 1:27:22
    Half Marathon Dominic Grillo, 37, Whitehouse Station, CA ('12) 1:49:20
      Adona Ramos, 38, San Jose, CA ('11) 2:05:57
    Marathon David Schoenberg, 29, Berkeley, CA ('10) 4:29:58
      Penny Macphail, 42, San Anselmo, CA ('10) 4:26:42
    50 Km Jonathan Gunderson, 33, San Francisco, CA ('11) 4:52:39
      Sarah Lavender Smith, 41, Piedmont, CA ('10) 5:31:21
    Andrew J's Report
    2012 Diablo Trail Run
    2011 Diablo Trail Run
    Allen's Report
    2010 Diablo Trail Run
    David's Report
    Click on picture to view album (opens in new window).
    If you have photos or reports you would like to share, please send us the links via Contact Us.
     
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