After taking two years off from coaching at El Dorado, Coach Mertins returned in 2018 to be the Assistant Coach for the Freshman team, and now coaches the JV team. Prior to working with the Freshman, Coach Mertins coached for 6 seasons, including 5 as the Varsity Assistant Coach. Ronnie’s involvement in the program goes back more than 15 years as his two older sons, Kurt and Kyle had successful careers at El Dorado. Ronnie has been involved with youth baseball for over 30 years and brings a wealth of knowledge to the program. He and his wife Rhonda reside in Placentia with their sons Kyle and Kent and their daughter Kristi.