Martin Marietta at Pinesburg Quarry is proud to host the 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)!
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,
5 Miles: T-Shirt
5K: T-Shirt
1 Miles: T-Shirt
| Distance | Price | Opens | Closes |
|---|---|---|---|
| 5 Miles | $25.00 | May 1 | Aug 15 |
| $35.00 | Aug 16 | Sep 30 | |
| $40.00 | Oct 1 | Oct 16 | |
| $45.00 | Oct 17 | Oct 17 | |
| 5K | $20.00 | May 1 | Aug 15 |
| $30.00 | Aug 16 | Sep 30 | |
| $35.00 | Oct 1 |
| Year | Finishers | Median Time | Fastest Time |
|---|---|---|---|
| 2025 | 28 | 32:44 | 21:02 |
| 2024 | 37 | 35:00 | 20:26 |
| 2023 | 33 | 37:58 | 24:50 |
| 2022 | 33 | 30:54 | 22:18 |
| Year | Finishers | Median Time | Fastest Time |
|---|---|---|---|
| 2025 | 17 | 48:45 | 32:58 |
| 2024 |
Interested in this race?
| Oct 16 |
| $40.00 | Oct 17 | Oct 17 |
| 1 Miles | $15.00 | May 1 | Sep 30 |
| $20.00 | Oct 1 | Oct 16 |
| $25.00 | Oct 17 | Oct 17 |
-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
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
| 24 |
| 48:01 |
| 38:25 |
| 2023 | 29 | 54:36 | 37:04 |
| 2022 | 24 | 43:48 | 32:05 |