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St. Sebastian CYO Basketball

Catholic Youth Organization (CYO) basketball is a part of the Catholic Diocese of Santa Rosa's youth ministry in Sonoma County. The program is open to any child grade 3-8 (Catholic or non-Catholic) who resides within St. Sebastian's parish boundaries.  (West Sonoma County/West Santa Rosa)

Sign-up's are first come/first served.  Wait-list will be established once rosters are full.

Registration Is Now Closed

To inquire about a limited number of spots for Boys 4th, 6th & 7th grades, please contact Tucker Hemquist, SSCYO Athletic Director, listed below.

Please sign up earlier next year as registration is first come/first served.

St. Sebastian CYO is in Sonoma County, parish boundaries are West Sonoma County and West Santa Rosa.

Tucker Hemquist


Coach Registration

Hi Coaches!

Please register IMMEDIATELY for the '23-'24  Season using the link below !

Thank You!

2023-24 Season

Dear St Sebastian CYO Basketball Families -

  • Registration for the 2023/24 basketball season opens the first week of August and closes on a first come/first served basis.
  • Practices start November 1st. 
  • All games start the weekend of December 2, 2023. Each team has one game per weekend either Saturday or Sunday. 
  • The season will run ten weeks with a Christmas break in December and ending the first weekend in March 2024.


Practices will officially start on November 1, 2023.  Practice  schedules are set the third week of October and emailed by the coaches.

Practices take place at Brook Haven, Twin Hills, Hillcrest, Willowside, Forestville, Salmon Creek, Oak Grove, SunRidge, Sebastopol Community Church.

Every team is guaranteed a minimum of one practice per week.  Times, dates and number of practices are dependent on the availability of gyms and the coach's schedule.  Younger grades are generally scheduled for the earlier times (5:00-7:00) while the older grades are scheduled for the later times (6:00-9:00). 

St. Sebastian Church

The St. Sebastian CYO program is affiliated with the St. Sebastian Catholic Church in Sebastopol. Click on the link for more information regarding the church's ministries and programs. The pastor is Rev. Mario Valencia.

Gym Locations

Click on Gym Locations on the North Bay CYO league web site for addresses and directions for all of the gyms used by CYO for games.

North Bay CYO Basketball

The St. Sebastian CYO program is part of the 12 parish North Bay CYO League. The league website contains the CYO basketball rules, location of gyms where games are played, contact information for each parish's Athletic Directors, and much more. During the season, the scores and standings can be viewed on a weekly basis.

CYO Prayer

We pray for our athletes ...
To play with character and integrity.
We pray for our coaches...
To teach sportsmanship and fair play above winning.
We pray for our parents...
To model and encourage positivity.
We pray for our officials...
To lead and safeguard our games.
We ask this through Christ our Lord.

 Players and coaches assemble at mid court before each game and read our prayer.


CYO Philosophy

The Catholic Diocese of Santa Rosa sponsors sports activities as one dimension of its ministry to youth.  The teamwork, support, and discipline demanded by a sport are reflective of the characteristics of a true Christian Community.  Sports offers the opportunity to experience a community that supports and respects its members.

The CYO programs seek to provide activities for all youth.  All players are encouraged to participate to the best of their ability, to improve their skills, and to excel in their talents.  The team aspect of sports is emphasized rather than the "star" athletes and teams.

In developing a supportive team, participants are taught to respect and affirm their teammates.  An atmosphere of sportsmanship, helpfulness, and patience is encouraged.  Cheating, ridicule, and unsportsmanlike conduct are not tolerated.

Failure in a game or in conduct are seen as learning opportunities.  Youth are challenged to do their best and to accept critique when appropriate.  Youth, parents, and even coaches who are not "coachable" in their skills or attitudes may be asked not to participate.

Teams are encouraged to try to "win" the game, but not at all costs.  Sportsmanship, equal participation of all players and fair play are the first priority of every practice and game.  Teams who strive to make each player look good, who develop strong team support and who practice the fundamentals of the sport will find they are winners of both the game and of Christian Characters.

Adult volunteers are the key to success of the CYO programs.  They are the models for the youth.  They must consciously attempt to be Christian witnesses, to teach the fundamentals of a sport responsibly, to treat each student fairly, and to uphold the goals of the CYO program.