| Event Name | Last Updated |
|---|---|
| Owasso Invitational | 06/26/2022 |
| Out of the Gate Marching Exhibition | 07/15/2017 |
| OSSAA Northeast Regional Marching Contest | 05/28/2018 |
| Oologah Stallion Battalion Marching Invitational | 09/13/2016 |
| Oologah Stallion Battalion Marching Invitational | 09/12/2017 |
| Oologah Stallion Battalion Marching Invitational | 09/12/2017 |
| Omaha Marching Invitational | |
| Omaha Marching Invitational | 01/04/2017 |
| Omaha Marching Invitational | 11/27/2017 |
| Omaha Marching Invitational | 04/10/2019 |
| Event Name | Last Updated |