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MAY 8, 2021

Greenbrier State Park, Boonsboro, MD

Registration is closed for the 2021 race.

The Below information is for the 2021 race. The 2022 race will be on Sunday, May 8. This page will update when registration opens.

SwimRun Maryland is at Greenbrier State Park in western Maryland. Enjoy the man-made, fresh water lake and rolling terrain of the park trail system. Choose either the long course or short course distance. Both race distances are appropriate for all experience levels including first-timers. 


Take on a challenge different from anything you’ve experienced before. Traverse through a pre-marked course in nature alternating between running and swimming. Swim legs consist of open water lake swims while run legs are on fire trails and natural surfaces. Athletes typically participate as a two-person team of men, women or mixed but individual options are also available.  

As a team, you must remain within 10-meters of each other, this is not a relay. You share the experience, the fun, the beauty and the suffering.  

Rules permit swim aids such as hand paddles, pull buoys, even fins if you are so inclined but there are no transition areas and all gear must stay with you for the entire course so choose wisely. Some small safety gear is also required such as a water proof compression bandage and whistle.​


Must be 18 years and older to participate. Exceptions to this rule can be requested by email to


Long Course Team & Solo Division

Run - 6 legs: 16.4 mi
Swim - 6 legs: 2.4 mi
Total distance: 18.8 mi
To view the multi-page course map, click HERE
To view the course cue sheet, click HERE.

Short Course Team and Solo Division

Run - 4 legs: 7.9 mi
Swim - 4 legs: 1.6 mi
Total distance: 9.5 mi
To view the multi-page course map, click HERE
To view the course cue sheet, click HERE.
Greenbrier State Park, 21843 National Pike, Boonsboro, MD 21713
Everyone is required to wear a face mask when not racing. A disposable face mask will be given to athletes at race check in and can be worn in the starting chute. At the start of the race, swimrunners will run under the arch and dispose of their mask in a trash can. Upon completion of the race, swimrunners will be given another disposable mask.

RACE TIMELINE (subject to change)


Friday, May 7, 2021

5:00 -7:00 PM - Optional Athlete Check-In 

Saturday, May 8, 2021

6:15 AM - Athlete Check and Gear Check Opens

7:30 AM - Mandatory Pre-Race Athlete Meeting

Wave 1 - 8:00 AM- Long Course Teams 

Wave 2 – 8:02 AM – Long Course Solo

Wave 3 – 8:04 AM – Short Course Teams

Wave 4 - 8:06 AM – Short Course Solo

11:15 AM - Short Course Solo and Team awards ceremony

12:00 PM - All Long Course Teams must be thru Swim 4

1:15 PM - All Long Course Teams must be thru Swim 5

1:00 PM - Long Course award ceremony

2:30 PM - All participants must finish race

All registered participants, MUST check in on Friday on Saturday morning. 

Per USAT rules, each participant MUST attend in person. If you do not check in during the designated check-in times in person, you will not be able to participate in the event.


All participants must bring the following to packet pickup:

  • Photo ID

  • USAT membership card to show proof of annual membership unless you purchased a one-day USAT event insurance at the time you registered for the event.


Race Day at 7:30 AM - The mandatory pre-race course talk will cover important information about the race and include a question and answer segment. ​​All participants are required to attend this meeting. ​

MANDATORY RACE GEAR  (list updated 4/13/21 at 8:30 AM)

All athletes MUST carry the following gear on their person at all times. These items will need to be shown to race management at the gear check in station prior to the start of the race. To learn more about gear used for swimrun, view the gear guide HERE

  • Jersey (to be provided by the race)

  • Whistle

  • Pressure Bandage

  • Swim Cap (to be provided by the race)

OPTIONAL RACE GEAR (list updated 4/13/21 at 8:30 AM)

Participants may use the following optional gear. To learn more about gear used for swimrun, view the gear guide HERE

  • Pull Buoy

  • Teether (for teams)

  • Wetsuit

  • Paddles

  • Calf Sleeves

  • Compression Socks

  • Bright Color Swim Buoy 



The run courses will be marked by colored marking flags. The swim course will be marked with Orange buoys indicating the start, course and finish. There will also be staff directing traffic at the start and end of each leg. The swim course is the same for each SWIM leg and is marked by Orange buoys. Swimmers must keep buoys on their RIGHT shoulder for the duration of the swim.

Due to the configuration of the run courses we will follow a color-coded system. At the start of each run leg (aid station), you will need to pick-up a colored rubber-band indicating which loop you are about to start. You will follow the marking flags matching the color of the rubber band you have on your wrist. You will trade that color for the next color as you pass through the aid station to begin your next run segment. The run course colors are:

Leg 1: Yellow Run

Leg 2: Orange Run

Leg 3: Green Run

Leg 4: Blue Run

Leg 5: Purple Run (long course only)

Leg 6: Pink Run (long course only)

Leg 7: Run to the finish – no band needed.

Additionally, in areas where there is along stretch of running, marking tap will be placed on trees to indicate a confidence mark. 



Each aid station will have water, Gatorade (lemon lime), Gatorade Chews, GU Energy gels, GU Energy Stroopwaffles and Cliff Bars.


The award ceremony will be located near the finish area. Awards will be given to participants who earn 1st through 3rd place in the following divisions: All Male Team, All Female Team, Mixed Gender Team, Male Solo and Female Solo.


Ramada Plaza- Bowman Hospitality

1718 Underpass way , Hagerstown MD 21740



We are always looking for volunteers who want to be part of the team. We have opportunities as kayakers, lifeguards, boat drivers, aid station minders and finish line staff. Our volunteers get great soft cotton shirts that you will want to wear along with snacks and post-race beverages to keep you comfortable. Volunteer sign up will be available one month from race day. 


Participants will receive the shirt size they selected at online registration. We will purchase extra participant shirts to those who wish to exchange their shirt for a different size. ALL PARTICIPANTS WHO REGISTER BY 11:59PM, APRIL 22 ARE GUARANTEED A T-SHIRT!  Athletes will receive a finisher medal at the finish line.