Osaa Boys Basketball - Healthy Benefitscom United Healthcareindex41 Action Weather Kansas City The osaa sponsors 113 team and 426 individual event state championships for students competing in 19 interscholastic activities. To learn more please visit the osaa website at. The oregon 6a boys basketball state tournament tips off wednesday with quarterfinal games at the university of portland's chiles center. 6a preview | players to watch. Oregon school activities association.
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