Heat things up this summer with Terra Running Company's 5th Annual Summer Sizzler 5k Race Series, featuring timed 5k races plus a 1-mile fun run on Friday evenings at the end of May, June, and July in Cleveland's Greenway Park. Every race day brings family-friendly activities including a 1-mile fun run/walk, lawn games, music, and surprises, plus you'll earn race swag at each event and custom Summer Sizzler socks if you complete all three races. Register early to lock in the best pricing: $25 for the 5k and $15 for the 1-mile (until March 31, 2026), or save 10% by signing up for all three 5ks together!