Shark Week Showdown 5K, 10K - San Antonio, TX 2026

Shark Week Showdown is an ocean-themed running event at Lady Bird Johnson Trail Park in San Antonio. Bigfoot Running Company hosts this event, offering runners a 1 Mile Run, 5K, 10K, Kids Dash, Volunteer then Run 5K, or a Virtual Run. The 5K covers 3.1 miles, the 10K covers 6.22 miles, and the Volunteer then Run option allows participants to assist at the event before completing a 5K. The race embraces its Shark Week theme with a lighthearted race-day atmosphere instead of a formal road-race feel. Families can bring children for the dash, less experienced runners can opt for the mile or 5K, and those seeking a longer distance can select the 10K. Music will play at the finish line, and medals will be awarded to finishers of the 1 Mile, 5K, and 10K, with Kids Dash participants receiving their own medal.