2014 OSB Schedule  
Open Practice at the Mac track (Yamhill County Fairgrounds) in McMinnville, OR

March  22-23 Saturday Sunday
April 6 Sunday *Gates open 9 am
May 4 Sunday *Gates open 9 am
May 25-26 Sunday Monday
June 7-8 Saturday Sunday
June 21-22 Saturday Sunday
July 19-20 Saturday Sunday
September 13-14 Saturday Sunday

The official PKA schedule which shows all events at Mac Track can be found here:

Members can check there to see if the track is open for general practice as long as no other events are posted.