Date: Saturday, October 29, 2022
Time: 1 Mile Fun Run at 9:30am & 5 Mile Challenge Run and Family Friendly 5K at 10:00am
Place: Pinesburg Quarry, 14932 Bottom Rd, Williamsport, MD 21795
Type: A unique trail race that allows you to run or walk through a working quarry
Distance: 5 Mile Challenge Run, Family Friendly 5K (3.1 Miles), and 1 Mile Fun Run
Contact: Bobby Woodman,
Status: Registration now open

Martin Marietta at Pinesburg Quarry is proud to host the 3rd Annual Boulder Dash at Pinesburg Quarry! This event will be held in and around the Pinesburg Quarry in Williamsport, MD. This event is designed for all levels from beginners to advanced runners. Enjoy a unique race that allows you to run around a working quarry (for safety purposes the quarry will not be operational during the event)!

Race Limit: 300 combined 5 Mile Challenge and Family Friendly 5k participants, 100 1 Mile Fun Run participants

Start: We will use a mass start for all races.

Timing: This event will be professionally chip timed using disposable bib tags on the back of the race bibs! Bibs must be worn on the front of your shirt and be visible at all times. Results will be provided by Racine Timing and will be available LIVE. We will provide a web link to results that you can share with your family and friends so they can follow your race on their web devices.

Event Rules:  Runners must obey all race official instructions. Runners must follow the course as indicated by signage, cones, and course officials. No deviation will be allowed before, during, or after the race. Bibs must be worn on the front of your body at all times.

What do you get for your entry?

  • Soft cotton/poly blend race t-shirt
  • Custom Race Bib
  • Custom finisher medals for all 5 Mile Challenge, Family Friendly 5K, and 1 Mile Fun Run participants
  • Custom podium awards
  • A unique race that goes through a working quarry (quarry is not operational on race day)
  • Fun family experience

Check out the swag for 2022!

About Martin Marietta at Pinesburg Quarry:

Martin Marietta, an American-based company and a member of the S&P 500 Index, is a leading supplier of aggregates and heavy building materials, with operations spanning 27 states, Canada, the Bahamas and the Caribbean Islands. Dedicated teams at Martin Marietta supply the resources for the roads, sidewalks and foundations on which we live.


Description: The 1 Mile Fun Run and Family Friendly 5K are on gently rolling roads and packed gravel surfaces around the quarry. For an extra challenge, the 5 Mile race takes you down into both the main quarry and the old quarry. While all races are mostly on packed gravel, be prepared for uneven surfaces and slightly rocky sections.

Timing:  This event will be professionally chip timed by Racine Timing!


Challenge 5 Mile– This course is rated difficult and hilly, taking you down into both the main quarry and the old quarry.

Family Friendly 5K– This course is rated moderate and is gently rolling. It will not go down into the quarries.

1 Mile Fun Run– This course is rated easy and flat.


Race Site:
Martin Marietta at Pinesburg Quarry
14932 Bottom Road
Williamsport, Maryland 21795


8:00am - 9:15am: 1 Mile Fun Run Packet Pickup
8:00am - 9:45am: 5 Mile Challenge & Family Friendly 5K Packet Pickup
9:30 am: 1 Mile Fun Run Race Start
10:00am: 5 Mile Challenge & Family Friendly 5K Race Start
Awards Ceremony Immediately following the event

Immediately following the completion of the race there will be an awards ceremony for the Family Friendly 5K & 5 Mile Challenge.

Awards include top overall male and female and 1st place Age Group winners for both the Family Friendly 5k and the 5 Mile Challenge.  Age Groups are as follows for the Family Friendly 5K:  12 and under, 13- 15, 16-19, 20-29, 30-39,  40-49, 50-59, 60-69, 70-79, 80+. Age Groups are as follows for the 5 Mile Challenge: 15 and under, 16-19, 20-29, 30-39,  40-49, 50-59, 60-69, 70-79, 80+.


Directions from I-81N:

Take exit 1 for MD-63/MD-68 toward Williamsport/Boonsboro
Turn left onto MD-63 N/MD-68 W (signs for Williamsport)
Turn left onto Bottom Rd

Directions from I-81S:

Take exit 2 to merge onto US 11S/E Potomac St
Turn right onto MD-68 W/N Conococheague St
Turn left onto Bottom Rd

Contact: Bobby Woodman,


Pricing includes cotton/poly blend race t-shirt, custom race bib, custom finisher medals, and free photos.

Pricing Tier- Date Range 1 Mile Run 5K Run 5 Mile Run
Early Registration Open - August 15 $10.00 $20.00 $25.00
Regular Registration Aug 16 - Sept 30 $10.00 $25.00 $30.00
Late Registration Oct 1 - Oct 28 $15.00 $30.00 $35.00
Race Day Registration Saturday, Oct 29 $20.00 $35.00 $40.00

Refund Policy:  We do not offer refunds for this event.


2019 Photos
2018 Photos


2019 Results
2018 Results

5 Mile Challenge Winners:

Male Female
2019 Michael Hohl 30:51 Shelby Moleski 37:53
2018 Britt Kern 30:51 Megan Martin 34:07

5K  Winners:

Male Female
2019 Jeremy Thomspson  18:21 Anna Merrill  24:43 
2018 Ryan Coffelt  20:32 Brittany Taylor  26:26 

5 Mile Challenge Course Record Holders:

Male: Britt Kern  30:51 (2018), Michael Hohl  30:51 (2019)
Female: Megan Martin  34:07

5K Course Record Holders:

Male: Jeremy Thomspson  18:21 (2019)
Female: Anna Merrill  24:43 (2019)