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| OBA 4A-5A State Championship | |
| Yukon | |
| 10/14/2017 | |
Oklahoma Bandmasters Association State Championship for classes 4A and 5A. Prelim awards per class, top 12 in finals, BOA-style judging and caption awards.  | |
| Oklahoma Bandmasters Association | |
| http://www.okbandmasters.com/contest-dates-and-info.html | |
| Email hidden; Javascript is required. | |
