Welcome to the Official website for Chesterfield Baseball & Softball Association (CBSA)

Please be sure to check our Covid-19 policies

COVID-19 Rule Additions

2021 Spring American Baseball League

The American League is for boys ages 8-14. This program is for recreational or competitive recreational players looking to build strong fundamentals.

Registration Information (2 steps)

1) Register the team Nov. 1st - Jan. 31st (EXTENDED).  No fee required.  As you register the team, you will input an expected roster.  Then you will "Invite" the parent who will get an email with a link to register.  Rosters can be edited and players added or removed as needed.

  • If you are a club team and have already collected fees from parents and wish to pay one lump sum for all the players, please contact Julie at admin@cbsasports.com for registration instructions PRIOR to registering.  
 2) Players register.  After registering the team, those expected roster players receive an email with a link to register.  Be sure to check SPAM or junk mail for the email.  Player fee is $145 and players should register by Jan. 31 (late fee of $25 after Jan. 31).
  • If a player DOES NOT have a team, they may register Dec. 1-Jan. 31 and CBSA will try to find them a team. Player fee is $145/player.  We also encourage you to check the ads, or create your own, our American Baseball discussion boards
League Format
  • All league games played at Chesterfield
  • Practice times & locations are determined by the coach
8U Format
  • 12-Game Season: April 5th - June 30th
  • Machine pitch/1 umpire
  • Games played: Fridays (6pm, 7:30pm), Saturdays & Sundays (8am - 4pm), and Mondays (6pm, 7:30pm)
  • Games 1hr 20 min
  • 4 pre-season and 4 in-season practices at Chesterfield Valley Athletic Complex
9U-14U Format
  • 12-Game Season:  April 5th  - June 30th
  • Games played:  Fridays (6pm, 8pm), Saturdays & Sundays (8am - 4pm), and Mondays (6pm, 8pm)
  • Games 1hr 40 min
  • 4 pre-season practices and 4 in-season practices (8U-10U only) at Chesterfield Valley Athletic Complex
2021 Eligibility
CBSA does not allow any player to be on more than one roster, regardless of age, division or league.
  • 8U (Machine Pitch) for players born 5/1/12 - 4/30/13
  • 9U for players born 5/1/11 - 4/30/12
  • 10U for players born 5/1/10- 4/30/11
  • 11U for players born 5/1/09 - 4/30/10
  • 12U for players born 5/1/08 - 4/30/09
  • 13U for players born 5/1/07 - 4/30/08
  • 14U for players born 5/1/06 - 4/30/07
  • Gold - Competitive
  • Silver - Competitive Recreational
  • Bronze - Recreational
Guest Player Policy
CBSA will allow guest players for American League teams, provided the following are met:
  • Team must have at least 11 players on Official Roster
  • Team must have 8 or fewer available players to enlist a guest player
Guest Player
  • Must be a currently registered CBSA player in the American League (no Select League players)
  • Cannot be from a division higher
  • Must wear their own team uniform
  • Guest players cannot pitch

* Managers must notify coordinator 24 hours before game.  Not for permission but so coordinator can let the opposing manager know of guest player.

* Umpire and other manager must be made aware of guest player at ground rules.

Looking For A Team?  Check out our discussion boards
Fall American League
Fall League Format
  • 7-Game Season: September 8 - mid October 2020
  • 8U Games (1 hr 15 min) Games played Monday - Fridays (6pm, 7:45pm), Saturdays - Sundays (9am, 10:45am, 12:30pm, 2:15pm, 4pm)
  • 9U-14U Games (1 hr 30 min) Games played Monday - Fridays (6pm, 8pm), Saturdays - Sundays (9am, 11am, 1pm, 3pm, 5pm)
  • Managers will be give 12 blackout dates to avoid conflicts
  • All league games played at Chesterfield
  • $775/Team
Eligibility - Play 2021 Age Levels
  • 8U (Machine Pitch) for players born 5/1/12 - 4/30/13
  • 9U for players born 5/1/11 - 4/30/12
  • 10U for players born 5/1/10 - 4/30/11
  • 11U for players born 5/1/09 - 4/30/10
  • 12U for players born 5/1/08 - 4/30/09
  • 13U for players born 5/1/07 - 4/30/08
  • 14U for players born 5/1/06 - 4/30/07
Registration Dates

2021 Spring American League Team Registration
($0 Fee)
Register a Team
Players with a team
Register using email invite link from coach

Player Registration
Register a Player

American League Coordinators

Your Age Group Coordinator is your primary contact for any questions you may have about managing your CBSA team.


David Ziolkowski

Boys 8U Coordinator

Don Rudolph

Boys 9U Coordinator

David Ziolkowski

Boys 10U Coordinator

Tom Shaughnessy

Boys 11U Coordinator

Brian Ziha

Boys 12U Coordinator

Rick Robinson

Boys 13U Coordinator

David Ziolkowski

Boys 14U Coordinator

Brian Eisenloeffel


Baseball Rule Book (3/7/20)

Baseball Rule Grid

Bat Ratio

  • 9U/10U - no drop (Just stamp with 1.15)
  • 11U/12U - -10 (with BPF stamp)
  • 13U - -8 (with BPF stamp)
  • 14U - -5.5 (with BPF stamp)