Saint Louis Ultrarunners Group


Founded in 1998, the Saint Louis Ultrarunners Group (SLUGs) is dedicated to promoting ultrarunning in the central Midwest. Fostering a community atmosphere, our club welcomes new and seasoned runners alike. If you are looking for great races, a friendly atmosphere and a group of people that are passionate about ultrarunning then you are in the right place.

SLUGS currently host five annual races with distances ranging from 20K to 100 miles. Additionally the club sponsors multiple charity runs, coordinates semi-annual trail maintenance, hosts aid stations at various running events throughout the Midwest and much more. Come join in the fun.


Upcoming Events

  • Greenrock FatAss 50k (aka GreenRock30)
    Sat, Dec 10
    Fox Creek Parking Lot
    Dec 10, 7:30 AM
    Fox Creek Parking Lot, 5035 Fox Crk Rd, Pacific, MO 63069, USA
    The Greenrock Fat Ass 50k (aka The Greenrock30) trail run will be held on Saturday, Dec 10, starting at 7:30 AM from Fox Creek parking lot (TH parking lot location pictured above). No shirt, no fees, no official timing, aid at the turnaround in Rockwoods Reservation.
  • Howard Aslinger Endurance Run
    Fri, Mar 17
    Arena Park
    Mar 17, 2023, 7:00 PM CDT – Mar 18, 2023, 7:00 PM CDT
    Arena Park, 2 Lions Way Dr, Cape Girardeau, MO 63701
  • Double Chubb 8M/25K/50K
    Sat, Apr 15
    West Tyson County Park
    Apr 15, 2023, 7:30 AM CDT
    West Tyson County Park, 131 N. Outer Rd East, Eureka, MO 63025
  • Berryman 50 Mile & Marathon
    Sat, May 20
    Mark Twain National Forest
    May 20, 2023, 7:30 AM CDT
    Mark Twain National Forest, Berryman Campground, Potosi, MO 63664
    Registration opening soon!
  • Mark Twain Trail Summit
    Tentatively scheduled for Sept. 8-10, 2023
    Berryman Campground
    Tentatively scheduled for Sept. 8-10, 2023
    Berryman Campground, Potosi, MO 63664, USA