The CIRCUIT, a collaboration between Trials of Miles Racing and RunnerSpace, is launching in four major cities this winter, as the inaugural series brings a fun-filled, fast-paced environment to four of the iconic venues in track and field.

Launching the series on January 31 in Chicago at Gately Park, followed up with events on February 15 at The Armory in New York City, February 21 at The TRACK at New Balance in Boston, and concluding on March 1 at The Ott Center in Philadelphia, The CIRCUIT will offer a blend of high school and open events, with a focus on sprint, distance, and relay races.