Greg Kielar took over Onondaga's Cross Country program beginning the 2024 season. Kielar assisted the program alongside previous Head Coach Rob Colvin since 2020. Kielar brings a vast deal of devotion and knowledge to the program having been a Division II runner at East Carolina University and his development of the 'Couch to 5K' program for adults and adolescents during his time with the YMCA.