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25kTrailRun + Hike + Beer&BBQ = MD HEAT Race Ultra Signup - Register Online Now! 2023 REGISTRATION OPEN now for Sat Aug 19th, 2023

Date: Saturday August 19th, 2023. Mark your calendars!

MD HEAT: A 25k or 50k all-trail running and hiking challenge and after party in Patapsco Park outside of Baltimore, MD. H.E.A.T.: High Endurance Adventure Test

Goal: To FINISH (run, hike, walk, crawl) and have a GREAT time afterwards. Timing is secondary. The PARTY after is your prize!

Volunteers: Contact jfairmanpt [at] gmail [dot] com . See Volunteer signup page for various spots. Will pay in BBQ and Beer :-)

Race Reports:


Join our Facebook Group! Join the Facebook Group for discussion, news, trail info!

Course Description

2023 Course Link

Changes to the course happen yearly. As details are finalized, we will provide updates.

25k (16 miles) all trail. No loops. The 50k option is two loops. One long trail on varying terrain, mostly forest shaded. Everything from rock scrambling uphills to single track downhills, to mountain bike havens and as few fireroads as possible in order to get you back on lovable dirt enlightenment. Elevation gain is estimated at 1700 ft. The trails are technical and challenging. A great course to hike, run, or both. It's really an adventure and a beautiful park. You won't know you are 8 miles outside Baltimore. 3+ Aid Stations with plenty of water and some food. Course markings and detailed maps are planned to be included.

Read more details...


Past race results, for all years, are held on . Click link below. See the small box with each year (2012, 2013, etc) - on the right for Desktop and by scrolling down if on Mobile.

Click here to see results...


Unlimited beer bottles and cans (30+ varieties), pulled pork, burgers, hotdogs, Vegan offering. Horseshoes, Music, and Games. Race winners get bragging rights. We are renting the largest Patapsco Avalon Shelter, which have bathrooms nearby, a pit for bbq, and plenty of space to enjoy ourselves.

Read more details...


  • Event Date: August 19th, Saturday 2023
    • 25k
      • 7:30 am get to parking lot (we need to shuttle hundreds of people in)
      • 9:00 am 25k race start
      • No time limit (though we will stop you if everyone else is done)
      • 7:00 pm party finish's (or until people stay)
    • 50k
      • 6:00 am get to parking lot (you need 30 mins to be bussed and checked in )
      • 7:00 am 50k race start
      • 10 hr time-limit (we will be flexible, though we will stop you if everyone else is done)
      • 12 noon 50k cutoff @ half way mark (start/finish line)(5 hrs to make one loop would not be enough to finish in 10 hrs)
      • 7:00 pm party finish's (or until people stay)

Location, Buses, Parking

Please do not park at Startline. All runners, attendees, spectators must shuttle in from the exterior parking lot, or we might not have our race next year!

50k Info

The 50k will consist of two 25k loops. There is an encouraged 10 hour time-limit (we will be flexible within reason). Details on number and location of aid stations to come as we finalize the course. Start time is 7am. This means getting to the parking lot and boarding the bus extra early! There is an enforced 12 noon cutoff at the 16 mile (halfway start/finish) mark.

Volunteer Work

To help support the park so that we can continue to host these events, we request 1 hour of volunteer work. Hours can be logged here:

Thank you!

Stuff you can get

Shirts can optionally be purchased when you register online. We are attempting to make the event cheaper for those who do not need a shirt for every race… however, we think that our shirts are unique and high quality (I run test them and only get athletic gear).

Read more about shirts...

Sponsors Etc

Causes / Charity

See our detailed Donation Log

This is a not-for-profit race that has benefited multiple causes over the years:

The event is operated as a nonprofit affiliate of the RRCA, doing business as '4Life'. 4Life pays for any services and goods that the event entails, and donates the remainder to the charities above.

start.txt · Last modified: 08.17.2023 14:07 by nyeates