GRO Races, founded in 2009 by Cimarron Chacon, is a premier event producer known for organizing some of the most challenging and scenic cycling events in the U.S. and internationally. Their portfolio includes a variety of mountain bike and gravel races, each designed to push the limits of participants while showcasing stunning landscapes.

One of their flagship events is the True Grit Epic MTB, held in Santa Clara, Utah. This race is renowned for its technical singletrack and scenic desert terrain, making it a bucket-list event for many mountain bikers. The event is part of the National Ultra Endurance Series (NUE), which includes some of the most demanding endurance races in the country​ (Strambecco)​​ (Strambecco).

Another standout event is unPAved of the Susquehanna River Valley, which takes place in Pennsylvania. This gravel race is known for its beautifully maintained gravel paths, scenic countryside, and festive atmosphere. The event has quickly gained popularity and is celebrated for its combination of challenging routes and community-driven fun​ (Strambecco).

GRO Races also produces the 25 Hours in Frog Hollow, a unique endurance event held in Hurricane, Utah. This race challenges participants to complete as many laps as possible within 25 hours on a 13-mile loop, offering a mix of technical and scenic desert riding. The event fosters a lively, communal atmosphere with camping options and local dining​ (Strambecco).

For those looking to experience international racing, GRO Races partners with events like The Rift in Iceland, providing riders with an opportunity to tackle the rugged and beautiful Icelandic terrain.

Overall, GRO Races excels in creating memorable and challenging cycling events that attract athletes worldwide. Each race is thoughtfully organized to highlight the natural beauty of its location, offering participants an unparalleled racing experience both on and off the bike​ (Strambecco).