Fields of Gold Trail Run

OCT
24
2026
Trail races at Shaffer Bend Recreation Area from 5K to 50 miles plus ruck and adaptive divisions, with seasonal aid stations and proceeds benefiting local youth running programs.
Sat 24 Oct 2026
50 miles 50 kilometers 26 miles 13 miles 10 kilometers 5 kilometers

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Fields of Gold Trail Run

The Fields of Gold Trail Run at Shaffer Bend Recreation Area in Marble Falls, Texas, offers a range of timed and untimed trail events across varied terrain. The course system includes rolling hills, meadow trails, wooded sections, and lakeside paths with scenic overlooks and expansive native grass fields.

Race formats and offerings include:

  • 50 Miler
  • 50K
  • Marathon 26.2 miles
  • Half Marathon 13.1 miles
  • Half Marathon Ruck
  • 12 Hour Endurance Challenge
  • 10K Trail Run
  • 5K Harvest Fun Run
  • Exceptional Athlete 5K, 10K, Half Marathon, Marathon
  • Exceptional Athlete Guide

The 12 Hour Endurance Challenge uses a main loop and a designated shortened basecamp loop for the event's final hour; only laps completed before the event clock ends are recorded. Night running requires a headlamp and recommends a backup light, reflective clothing, personal hydration, and a cell phone for emergencies.

Rucking follows clear rules: minimum dry pack weight of 20 lb or 30 lb depending on body weight, pre-race weigh in, and a finish weight check. Ruck distances count toward Run the River mileage.

Exceptional Athlete options include an adapted accessible loop or the main course with time accommodations, early start options, extended cutoffs, and a guide option. All participants receive a finisher medal and race shirt; aid stations provide seasonal items such as apple cider and pumpkin cookie bites.

Event management is by Fit Foundation and net proceeds benefit HKRS Cedar Park youth running programs. Timed distances count toward the Rio Colorado Ultra Slam 250 km total. Visit the organization's website for the most recent information.

50 mi
50 Miler
50 km
Golden 50k
26 mi
Exceptional Athlete (fitworks) Marathon
26 mi
Gold Marathon
13 mi
Half-Marathon Ruck
13 mi
Gold Half-Marathon
13 mi
Exceptional Athlete (fitworks) Half-Marathon
10 km
Gold 10k
10 km
Exceptional Athlete (fitworks) 10k
5 km
Exceptional Athlete (fitworks) 5k
5 km
Golden Hour 5k (morning)
5 km
Golden Hour 5k (night)
Gold 12-Hour Endurance

Events nearby

A 30 hour endurance challenge in Burnet TX where runners complete one mile each hour for 30 hours while net proceeds support Jar Of Hope.
Trail races at Reveille Peak Ranch offering 10M, 20M and 50K on singletrack and fire roads with aid stations and Leadville qualifier opportunities.
Test your endurance at this Last Person Standing event in Marble Falls. Complete a 4.17 mile loop every hour until only one runner remains to be crowned the winner of the Summit Backyard Ultra.
Trail races from 50K to a youth mile at Canyon of the Eagles on Lake Buchanan, with marked laps, aid stations, chip timing, and Leave No Trace rules.
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