Catoctin 50K Trail Run & Half Cat
Thurmont, MD
Jun 21, 2025
Overall Rating

- 50K, 25K
- Trail (Unpaved)
- Official race website

The Half Cat was added in 2016, and its purpose is to get our old school running buddies back out on the trail. It’s half the distance of the Catoctin 50K. You arrive at the 50k like everyone else. After the Cat starts we take you by car to the … MORE
The Half Cat was added in 2016, and its purpose is to get our old school running buddies back out on the trail. It’s half the distance of the Catoctin 50K. You arrive at the 50k like everyone else. After the Cat starts we take you by car to the Half Cat start line at the Manor Aid Station. This is an exclusive race which you must qualify for. Qualifications are: (1) You must be an ultra running veteran and this is not your first trail race. (2) You, for whatever reason, struggle with cutoffs. (3) Must be 52 years of age or older. No AARP discounts. Finally, If, after I review your stats on UltraSignup and see you’re still kicking it at the longer distances then we’ll talk and you’ll be “bumped” up the full 50k. We wouldn’t want you to take advantage of the other Half Cat’ers now would we?
The Course:
It’s an out-and-back on rocky, slow, difficult and demanding (but yet run-able) trail. Starting at the Tea Room in Gambrill State Park we run down the hill to the trail head for the Blue trail. Once we get on the Blue trail we follow it through Gambrill State Park, through the Frederick Watershed and into Cunningham State Park where we then turn around at the Manor Area of Cunningham State Park.
There are a couple of favorable points to this challenging yet entertaining run: (1) Shade. The course is almost entirely covered with luscious tree foliage. (2) Streams. there are several stream crossings where you can twinkle your toes in cool “beer commercial” type of mountain water and cool down. If we don’t have a lot of rain and it’s a hot summer the streams will wither up and dry and will tease you with the thought of what they once were. If it rains hard during the race then the trail becomes a major water way and it’s… hello, where did I put my goggles.
Since this is an out and back on an established trail and has been permanently blazed with light blue blazes on a fair number of trees. The trail will not be marked with the customary engineering ribbons or chalk. No trail maps or orienteering seminars will be conducted. Simply follow the runner in front of you. This should work as long as they don’t get lost or take a wrong turn.
Once you reach the half way point its simply a matter of turning around and retracing your steps and facing the hill back up to Rick’s overlook and on to the finish line. Getting lost is always possible but let’s hope for the best. Sixty percent of the runners get off course at least once. This course will penalize any runner who runs “heads down”. The Catoctin 50k trail run requires that you slow down/stop and look around at each intersection. If you think you know the way without looking around then we wish you good luck and hope your detour is minimal. If you have a habit of not following directions then please don’t run. There’s no search and rescue which means race management and volunteers have to cover the course and surrounding areas. This is a very unpleasant situation and makes us very “unhappy”.
Course questions will be answered at the pre-race briefing. Unreasonable complaints, criticisms, and selfish attitudes will be ignored and race management and/or the appropriate volunteer will administer humility to the participant in question.
Conditions:
Race day will be hot, the rubber on the bottom of your shoes gets really gooey hot, melt synthetic clothing hot, sweat buckets of H2O hot…. then again, it might rain. The summer of 1999 the temperature dropped 20 degrees on race day. The over abundance of rocks will be sizzling and the dirt will turn into throat choking dust. Along with the heat is the humidity. It gets, “cut it with a knife” humid. You’ll feel like your swimming in the open air. No matter how acclimated you are this run demands that you carry water. In fact it’s mandatory! ALL RUNNERS MUST CARRY AT LEAST ONE 20 oz WATER BOTTLE and TWO bottles if you want to finish the race. In 2007 one bottle runners had an extremely hard and difficult race. An equipment check will be conducted prior to the start to ensure safety and fashion. The Hagerstown Almanac (which has an unnatural record for predicting race day temperatures) predicts that race day will bring us temperatures worthy of ultra lore… hot, humid, hazy, possibility of rain and frustrating. You’ll curse the day they created the Catoctin Trail.
First Time Ultra Runners and Hikers:
I’m not going to discourage anyone from trying but… this is a slow and demanding course and not necessarily the best venue to run your first ultra. It has been known to make grown men weep and woman to curse the day race management was born. Once the race starts sympathy is not displayed to anyone regardless of the circumstance. This is an ultra event and it will be conducted accordingly.
If you’re using this race to train for anything else but an ultramarathon of 50 miles or longer then you’re wasting your effort. If you’re trying to get in shape for that special Triathlon, Ironman or marathon we strongly suggest that you choose road courses for training.
For you hikers if you think you can walk it and finish in the time allowed you can’t. It’s been tried on numerous occasions and everyone has failed. Besides this is a run, not a hike. If your dressed like some hiker in the Swiss alps then be prepared for some humiliation from the runner police. Walking sticks… leave ’em home. We’d rather you not impale other runners as they race by.
Aid:
There are three aid stations along the course making a total of 6 aid opportunities during the race, not including the start/finish area. The stations are fully stocked and supplies will consist of water, soda, sport drink, cookies, pretzels, Pringles, candy, bananas, Succeed! Caps (1 Gram Buffer/Electrolyte Nutritional Supplement) and many other assorted goodies. Pharmaceutical needs are the responsibility of the runner.
LESS
Find Nearby Lodging (hotel, rental, etc.):
Other Races In Maryland
Recent reviews
- Races
- Catoctin 50K Trail Run & Half Cat