Get ready to explore the beautiful shores of Saylorville Lake at Jester Park with your choice of standard 5K and 10K distances or try the brand-new 2026 enduro challenge where you'll tackle a 3.1-mile loop as many times as you can in 10 hours (and yes, there are buffalo to wave at!). You'll enjoy well-marked trails across gravel, dirt, and grass surfaces with solid course support, basic timing, a custom bib, and a rotating race reward like a BUFF, socks, or water bottle—all without breaking the bank. Sign up for the whole Iowa Trail Run Series to snag an exclusive series gift, plus customize your race experience with a soft tri-blend shirt featuring cool animal icons!