March 29 - 30, 2019

Greenbrier Ultra's

21843 National Pike Boonesboro

Boonesboro, MD 100 Mile Endurance Run, 50M Midnight Madness Run, 50K

This Event Took Place Sat. Mar 30, 2019

A huge THANKS... to everyone who ran and volunteered!

Click Here for Photo's


Thanks for checking us out! The Greenbrier Ultra's are comprised of three separate but similar races:
1. Greenbrier 100 Mile Endurance Run
2. Greenbrier 50 Mile Midnight Madness Run
3. Greenbrier 50k Fun Run

Start Times:
100 = Friday March 27, 2020 at 2:00 p.m.
50 = Saturday March 28, 2020 at 12:01 a.m. Technically Saturday but we're calling it Friday Midnight :-)
50k = Saturday March 28, 2020 at 8:00 a.m.

Stop time is 11:00 p.m. Saturday... for everyone!
100 miles = 33 hours
50 Miles = 23 hours
50k = 15 hours

Refunds are 75% of entry fee. NO REFUNDS AFTER 2/28/2020


To encourage entrants of all abilities and ages to participate. This "closed" loop experience, with generous cut off's, has been designed so that all who participate have the best opportunity for success. If one of these characteristics fit's you then you are a perfect candidate for entry:

  • Have fun attitude.
  • Wants to participate in a different kind of race.
  • A hesitant first time ultra runner.
  • Someone who, for what ever reason, struggles with cutoffs.
  • Someone who want's to get "back into the game".
  • Runners that want to gain experience running at night.
  • Experienced ultra marathoners who want to see how quickly they can finish.
  • Experienced road runners who are hesitant running on trails.
  • If you're directionally or logistically challenged.

    If you don't have a fun attitude, cannot mentally handle the repetitive nature of a loop course or are a dick then you are probably not a good fit here.


    The loops are between 5 and 8 miles within the Greenbrier State Park. The trails used and the direction the races are run will change each year. It's rocky (it's the east coast!) but not considered "technical". No steep or long climbs but there are some up's that "course blistering" non elite runners may want to walk.
    Elevation gain is between 750'-1050' per loop

    Cut Offs:

    None! Wait! What? No cutoffs? Did I read that right? Yes... that's correct! You won't be pulled if you don't do a certain number of miles by a certain time. We want you to finish or run as many miles as you can. However, runners who arrive at the Aid Station at or after 10:00 p.m. Saturday night will not be allowed to continue. The rational is that if you're in the 29th hour of the 100 or the 22 hour of the 50 or the 15th hour of the 50k you won't be able to finish x.x miles in 60 minutes.

    Aid Station:

    There's only one Aid Station... its known as the "Oasis". Oasis is really our HQ as it also serves as Bib pickup, Start / Finish, Timing, Moral Support and any other stuff we can think of. It's located in the picnic table area next to the North Parking lot. It's a heated 20' x 60' tent with chairs and tables. There's an area for Drop Bags for the 100 and 50 milers. The number of 100 and 50 milers will determine the amount of space available to the 50k runners. We know how to manage aid stations and won't skimp on food or supplies. We'll have "real" food and don't supply b.s. stuff that fills the table but doesn't help you finish a race. Our dedicated crew of volunteers know how to cook and serve food so we'll make sure you're fat, happy and content... well... at least with the food.

    Pacers and Crew:

    Crews are encouraged but may only crew a runner at the Aid Station or along the aid station side of the lake. Crews are not permitted "in the woods". Only one Pacer per runner allowed on the course at a time. Pacer Schedule:

  • 100 miler - 3:00 a.m
  • 50 miler - 6:00 a.m.
  • 50k - 2:00 p.m.


    There's plenty of paved parking spaces for cars and RV's. Pitching a tent is no problem. The restrooms and showers are scheduled to be opened a week prior to the race. If not then we'll have port-a-pots and the lake. I'm sure the lake will be warm enough in March to take a dip and rinse the ultra slime off!


    100 milers will receive a silver belt buckle for under 24 hours and a bronze buckle for over 24 hours. First time finishers of either the 50 mile or 50k distance will receive engraved neck ribbons. There will be no post race awards ceremony.


    Definitely! Each entrant will receive a premium and possibly other "stuff". Our fashion buyers are currently consulting with top NYC and Frederick, Maryland fashion designers for the latest trends and styles in the ultra running community.

    About the Race Director:

    Hi! My name is Kevin Sayers and I'm the Race Director of the Greenbrier Endurance Run's.

  • Check my running history right here on UltraSignup.
  • Completed the Grand Slam of Ultra Running in 1998
  • Completed the "JFK 100" (1998, 1999)
  • Race Director - Catoctin 50k Trail Run since 1999.
  • Race Director - Massanutten Mountain Trails 100 Mile Run since 2011.
  • Aid Station Captain - Bull Run Run 50 Mile - Centerville A.S. since 1999.
  • Race Director - Greenbrier Ultra's since 2018
  • Race Director - Shepherd's Spring 100k-50k-Half Marathon since 2018.
  • Race Director - Bobcat Trail Run (11 Miles) since 2018.
  • Race Director - Cow Bone 6-12-24 Hour 2019
  • website since 1996

    Consider my position as a cheerleader not a gate keeper. It's to get runners to finish not cut them off. My goal is to conduct a fun and rewarding experience for every participant, crew and volunteer. For me the most rewarding experience of being an RD is greeting each and every runner at the finish line with a congratulation, a handshake, a fist bump, a hug or a combination of all three and seeing their face of "finishing". Being around since '96 I've gained enough insight to know how to do it... and do it right.

    The reason for starting the Greenbrier Ultra's is simple... I have fun doing this stuff! In that fun is my desire to do things a little different, offer more opportunities and be more inclusive to runners of varying abilities and age. In regards to the 100 miler... I've never been able to sleep the Friday night prior to a 100 and would rather be running... so... why not start a 100 miler on Friday at 5:00 p.m.. Always wanted to name a race "Midnight Madness" hence the 50 miler. Also, there are very few "opportunities" of starting at midnight that allow you to get a good night time run in and then have the rest of Saturday to run errands etc. Ha Ha. In context to the 100 and 50 milers a 50k is simply... a "Fun Run" :-)

    My hope is that you'll join us and help make these races a fun and enjoyable experience.

    Local time: 1:59 AM
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