Firewater Ultra

Greenback, United States • 24 Oct 2026

Firewater Ultra

Firewater Ultra is a trail event held on the East Lakeshore Trail along the east side of Tellico Reservoir near Greenback, Tennessee. The event uses the trail system end-to-end and finishes at the Wildcat Pointe Trailhead (Trailhead #10). Course options follow the trail north to the Canal Branch Trailhead (Trailhead #1) and back, or cover portions of that route.

Available distances and formats:

  • 100K - entire length out and back
  • 50K - starts at the northern end and returns to the finish
  • 50K Relay - two-person relay sharing the 50K course
  • 50K Sunrise - 50K option starting earlier in the day
  • 50K Sunset - 50K option starting later to run toward sunset
  • 25K Ruck - about 22.5K covering the second half of the 50K

The 50K relay uses bus transport for the first leg and a vehicle drop at Sinking Creek Trailhead (Trailhead #4) for the second leg. The 25K Ruck requires weighted packs with specified dry weights by category: male and non-binary 30 lb, female 15 lb, boys under 15 years 20 lb, girls under 15 years 10 lb. Weigh-in procedures occur before the event and finish weigh-in is used to validate ruck patches. The event offers aid stations, cutoff information, crew access points, and optional live tracking for participants and their crews. A sweatshirt order will be placed on October 16, so size availability depends on registration before that date. Visit the organization's website for the most recent information.

Race information

100 km
100k
50 km
50k - 2 per Relay
50 km
50k Sunrise
50 km
50k Sunset
25 km
25k Ruck
Visit the organization's website for the most recent information.
Trail runs nearby

SwimRun Knox on May 31, 2026 features a 12.25 mile swimrun at Mead's Quarry and Ijams Nature Center plus a 3.18 mile trail 5k and a 13.1 mile trail half marathon, with team and individual entry options.

A timed trail festival on a 2.2 mile loop at McArthur Pavilion offering 24 hour, 12 hour and 6 hour options plus relays, chip timing, aid, live music and on-site packet pickup.

Experience the moderately technical and flowing trails of Knoxville at Sharp's Ridge Rambler. This event features 7 mile, 4 mile, and 1 mile trail races that climb and descend the scenic ridges of the park.

A patriotic July 4 running event at the Madisonville Kefauver Pavilion offering 17.76 miles and 7.4 miles with in-person and virtual options. A ruck division with specified pack weights runs on an asphalt greenway and bike trail course.

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