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Welcome to Orinda Baseball Association!

2020 Spring Registration Now Open!

Please visit our registration page.

While early bird registration has closed, if you wish to join OBA at the A's you can still purchase tickets for your family.  Please contact with your request.    

A late registration fee of $50 is applied starting Monday January 6th.  And Registration closes completely on Jan 15th, 2020.  

2020 Key Dates

Dec. 1, 2019        Spring 2020 Registration Opens
January 15           Spring 2020 Registration Closes
January 25/26    Evaluations
March 7                 Opening Day
May 16-17           680 & 11/12s Bronco House Playoffs - Twin Creeks
May 17                  Championship Sunday, Final day of season
July 18                   Cooperstown Tourney Starts (12U 680 Team)

Spring Ball, 2020 Divisions

Pinto: 5/1/2011 - 4/30/2013
Mustang: 5/1/2009 - 4/30/2011
Bronco: 5/1/2007 - 4/30/2009
Pony: 5/1/2005 - 4/30/2007

Join the OBA Mailing List

To sign up to receive all the latest news about OBA please email us at  Please make sure to include your player's spring age group.

Thanks for photo, Roots & Shoots

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Thank you to our OBA Sponsors!

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