Baseball General Information
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STAFF CONTACT: Kris Welch, Assistant Executive Director, 503.682.6722 x230, krisw@osaa.org
Resources
» NFHS Rules Information
» Health and Safety Information
» NFHS Field Diagram
OSAA Official Baseball
![](https://osaa.org/images/balls/wilsona1010probb.jpg)
Wilson A1010 Pro
Important Season Dates - 2025
- (3A-1A)Pitchers/Catchers Rule of 8
- February 17
- First Practice Date
- March 3
- First Contest/Jamboree Date
- March 17
- Cutoff - Contest vs. Teams More than One Classification Away
- April 9
- Cutoff - Contests Added
After a Certain Date - April 16
- 4A Rankings Freeze Date
- May 19
- 6A, 3A, 2A/1A Rankings Freeze Date
- May 22
- 6A, 3A, 2A/1A Cutoff Date
- May 22
- 5A, Rankings Freeze Date
- May 24
- 5A, 4A Cutoff Date
- May 24
- 6A, 3A, 2A/1A First Round
- May 26
- 5A, 4A First Round
- May 27
- 6A, 3A, 2A/1A Second Round
- May 28
- All Quarterfinals
- May 30
- All Semifinals
- June 3
- All Championships
- June 7
Line-Up Cards - Updated October 2019
![](https://osaa.org/images/osaa_championships_2018.png)