Water Temperature at Horsetooth on September 4th, 2025 – 68F (20C)

2025 Horsetooth Swims Results(when available)

• 2025 Horsetoooth Swims Results

2025 Open Water Events in Colorado

• Mountain Swim Series
  • Solstice Swim, Union Reservoir, Longmont, CO July 22, 2025
  • Carter Lake Crossing, Loveland, CO, July 29, 2025
  • Willow Creek Reservoir, Granby, CO, August 2, 2025
  • The Castle, Wellington Lake, Conifer, CO, August 23, 2025
  • Wellington SwimRun Challenge, Wellington Lake, Conifer, CO, August 24, 2025
• Swim Across America, Chatfield Reservoir, August 23, 2025

 Training and Clinics

• Horsetooth Tri Training and Open Water Swim
• BAM at Boulder Reservoir