Gro Promotions was founded in 2009 by Landscape Architect Cimarron Chacon. GRO Races’ first event was the 25 hours in Frog Hollow, which was launched on October 31, 2009. The next season they launched the 6 Hours in Frog Hollow.  The Race division grew, adding the True Grit Epic in 2011, which has continued to grow, hosting over 1200 participants over three days. In 2018 GRO Races went international, partnering with Lauf Cycling to develop the Rift Iceland. Gro continues to build cycling competitions and fun whenever the opportunity arises. In 2022 they launched their second international event in Costa Rica. The Secreto is a bit anti-La Ruta, focusing more on fun and personal challenge than suffering.  They also proudly announced a partnership with UnPAved of Pennsylvania to assist in managing this ‘rising star’ gravel event.