Group shot before the 2018 MGM.

Quatro Hubbard

Magnus Gluteus Maximus

Magnus Gluteus Maximus, latin for “fat ass,” is the VHTRC’s annual holiday-time “fat ass 50.” It’s an out-and-back, so you can turn around whenever you want. The only rules are wear seasonal colors.

  • Sat Dec 11, 2021
Start location
Start time
  • 8:00 am
  • 50 km
Total ascent/descent
  • 4,000 feet
Aid stations
  1. Bull Run Marina (6.0 miles)
  2. Fountainhead (12.0 miles)
  3. Fountainhead (19.0 miles)
  4. Bull Run Marina (25.0 miles)
GPX file
Sunrise & sunset
  • Begin civil twilight 7:48 am
    Sunrise 8:16 am
    Sunset 5:49 pm
    End civil twilight 6:17 pm
What to wear
In charge

Magnus Gluteus Maximus is the VHTRC’s annual “fat ass 50.” In prior years, to be different (who us?), we used various languages — French, German, Italian, Vietnamese, Latin, Swedish, Jamaican Patios, New Guinea Pidgin, Chinese, Hawaiian an anagram from “Fat Ass Fifty K” that came out as “Fat Taffy Kiss,” Thai, Ukrainian, and Japanese. A couple of years ago, we decided to pick one name and stick with it. So we choose Latin. If it’s good enough for the Catholic church, it’s good enough for us.

Parking is always an issue at Hemlock. Again this year, we hope to use the close-in parking that is used for carpoolers at BRR. So just drive on in. But when that inside parking fills up, you may need to go back out and park in the regular BRR parking lot. That means a long walk. The exercise will do you good! Take everything with you from your car that you will want after the run. Do not park in the winery parking lot!

This is an official fat ass run so there is no entry fee (but see below), no awards, and no wimps. There is some aid and some post event refreshments. It’s an out and back course so you can do any distance you want.

The course

From Hemlock Overlook, the course follows the Bull Run-Occoquan Trail (BROT) downstream to Fountainhead Regional Park and then out to the Do Loop. The BROT is blazed blue — follow the blazes (it will not be marked with ribbons). We do not do the White Loop, and we do not go on the mountain bike trail. We do not go upstream from Hemlock. NEVER cross a stream on concrete cylinders!

There are four untended aid stations located at miles 6, 12, 19, and 25. The aid stations will have water, soda, cookies, and chips. In an effort to cut down on trash there will be no cups at the aid stations. You should run with a water bottle or reusable cup.

Aid StationSplitCumulativeMap
Bull Run Marina6.0 mi6.0 mi
Fountainhead6.0 mi12.0 mi
Fountainhead7.0 mi19.0 mi
Bull Run Marina6.0 mi25.0 mi


We are using the RSVP system we have used the last six years. Here is the problem that system is designed to address. In 2010, 200 people RSVPed. We prepared for 150. About 100 showed up (in good weather). This is a huge waste of pizza and makes it very hard to plan the aid stations. Here is what we are doing again:

  • You will pay $10 to RSVP. If you show up to the run, we will give you a $10 bill. If you don’t show (and didn’t withdraw by December 1) we will keep the $10.
  • The event is still free for runners who show up, but it won’t be free for no shows who don’t rescind their RSVPs by December 1.
  • You must show up by 10 minutes before the start to get your money back.
  • You may not run if you don’t RSVP.

The point of all of this is not to raise revenue. The club has money to pay for this event. The point is to encourage runners to think about whether they are really coming and to give them an incentive to tell us if they are not coming.

On December 12, 2009 and on December 11, 2010 a bunch of people started and some finished. We don’t have results for either year. See the sidebar for all the other results.

List of Worldwide Fat Ass Events

Be sure to wear seasonal colors!

The start of the 1992 le Grande Dierriere
Anstr Davidson, Joe “President for Now” Clapper, Chris “President for Life” Scott, Tim Stanley, Keith Brophy, Steve Boutillier, and Marty Szekeresh at the 1992 le Grande Dierriere, the first VHTRC official event.
Anstr Davidson, Joe "President for Now" Clapper, and Steve Boutillier at the start of the 2016 MGM
Anstr Davidson, Joe “President for Now” Clapper, and Steve Boutillier at the start of the 2016 MGM.

Last updated May 11, 2021

Club Event Participant Medical Policy

This is an event with very real risks to your well being. The VHTRC does not provide medical care for runners at this event. Runners are responsible for their own health, safety, and well being at this event. No doctors, nurses, or emergency medical technicians, or anyone with any medical training are available along the course, at any aid station, or at the finish. The club does not supply any medical goods or services, including bandages, splints, antiseptic, or Ibuprofen or any other drugs to maintain the health of runners. Physical, medical, and emergency care is the runners' responsibility. In case of an emergency, we will endeavor to get local emergency personnel to an injured runner as soon as possible. Since most of our events are in remote areas, medical care may be far away in distance or time. Each year, runners finish — or are forced to drop out — with scrapes, deep cuts, hematomas, dislocations, and sprains. Runners have experienced cuts, bruises, bee stings, and asthma attacks. This is an event with very real risks.