• Softball: 2012
  • Quiz Bowl Jr.-Sr.: 2012-2013
  • Quiz Bowl Jr.-Sr.: 2013-2014
  • Wrestling: 2013-2014
  • Boys Cross Country: 2014
  • Wrestling: 2014-2015
  • Girls Golf: 2015
  • Quiz Bowl Frosh-Soph: 2014-2015
  • Boys Basketball: 2016-2017

Conference Runner-Up

  • Boys Golf: 2012
  • Girls Golf: 2013
  • Girls Golf: 2014
  • Quiz Bowl Jr.-Sr.: 2014-2015
  • Wrestling: 2015-2016
  • Boys Basketball: 2015-2016
  • Quiz Bowl Frosh-Soph.: 2015-2016
  • Boys Track: 2016

​O'Neill Junior-Senior High School

Conference Champions