Boulder Dash at Pinesburg Quarry

Sat October 24, 2020 Williamsport, MD 21795 US Directions
CANCELED as of 4pm Wednesday September 30, 2020

We are sorry to share the news of this sudden cancelation. Our client, Pinesburg Quarry, were very excited to make this race happen and we had full momentum. Unfortunately the corporate office late today decide to cancel the race. We will get communication out to those registered to work out the details. Our client and our team are very disappointed by this turn of events. Like much of this year, we are SO READY to get back on track in 2021!

Here Are Your Options:

We understand. We hope you can join us next time.


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 Website

Additional race information can be found at

14932 Bottom Road
Williamsport, MD US 21795
Race Contact Info

If you have any questions about this race, click the button below.


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


Race Participant Survey

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