http://omrra.com
2015 Race Weekends:
April 17 - New Racer School spring
April 18-19 - OMRRA Round 1
May 9-10 - OMRRA Round 2
June 27-28 - OMRRA Round 3
July 24 - New Racer School summer
July 25-26 - OMRRA Round 4
August 15-16 - OMRRA Round 5
September 19-20 - OMRRA Round 6
Ninja 250's can race in
Ninja 250 Cup,
Ultra Lightweight Supersport,
Ultra-Lightweight GP, and
Lightweight Superbike.
Link to original page on YouTube.