Central Ohio Swimming Officials Association (COSOA) is the local association for OHSAA Central District swimming & diving officials. The association's purpose is to foster and improve the officiating of swimming in Ohio in accordance with the regulations as adopted by the National Federation of State High School Associations. 

President - David Brumbaugh

Vice President - Kristin Williams

Secretary/Treasurer - Melanie Ryan (cosoasecretary@gmail.com)

Assigner - Jon Reidler (assigner@cosoa.org)

Training Officer - Tracy Nottage

Becoming an Official 

Visit - https://www.ohsaa.org/Officiating/permits - for information on how to become and official. If you have questions or issues, please contact the association secretary at secretary@cosoa.org. 

Current Officials

DragonFly - https://www.dragonflymax.com/ 

O.H.S.A.A. Swimming & Diving Officials Facebook Group - https://www.facebook.com/groups/1528803054080492 

(this is administered by the Swimming & Diving Director of Officiating Development)

Meetings & Clinics

Local Association Meetings for the 2026-2027 season will be coming soon.

State Rules Meeting & Local Association Meetings Information found in DragonFly. If you have questions, contact Melanie Ryan - COSOA Secretary/Treasurer.

If you are not already part of COSOA and want to be added to the list to received information about meetings, send an email to melryan1029@yahoo.com.