SUMMER REGISTRATION NOW CLOSED
Late registration for summer season is now closed. All late registrations will be waitlisted and assessed a late processing fee.
2025 Summer season runs JULY 12 through AUGUST 17 for all age divisions 6U-16U.
COBA News
Kailua Varsity Baseball Head Coach Corey Ishigo will be hosting a 5 day pitching clinic at Kailua High School.
Clinic runs from 9 am to 12 pm on June 16-20 @ Kailua High School. Cost for clinic is $400. Use QR to submit payment or Venmo @Corey-Ishigo
The COBA 2025 Summer season registration is now open for all age divisions 6U - 16U. Games to start on July 12 to August 17! Also taking Intact team requests to join us for the upcoming season. See the Registration page for more information.
COBA is run 100% by community/league volunteers. We are looking for volunteers to coach all divisions. If you are interested or have questions, please contact the division coordinators found on our website.
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COBA 2025 PINTO GOODWILL TOURNAMENT
- By COBA 03/31/2025, 2:45pm HST
COBA SPRING 2025 SEASON REGISTRATION OPENS FEB 18 FOR ALL DIVISIONS!
- By COBA 02/14/2025, 6:45am HST
LAST CHANCE! COBA WINTER LATE REGISTRATION CLOSES NOV 12!
- By COBA 11/11/2024, 9:00am HST
COBA is officially a Cal Ripken Baberuth League charter, check out baberuthleague.org for more.
Our 2024 Mililani All-Star Teams
Congratulations to all of our 2024 Mililani All-Star teams competing in their State Tournaments! We had teams from 8U-14U competing with the best teams from around the State! Also including our 9U team that competed in the Cal Ripken World Series in Alabama. Special thanks to all of the countless volunteers, coaches, and families who are committed to developing our Mililani youth!
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