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Chicago metro & suburbs youth baseball

City + collar counties: Cook, DuPage, Kane, Will, Lake, McHenry. Named locals we track include RMSBO, WSBL, and CSYBA.

Metro hub: Thousands of park-district teams exist. Use named pages when we have them; otherwise start from stamp family + your town packet.

Named locals on CheckMyBat

RMSBORoselle / Medinah in-house & travel WSBLWest Suburban travel 8U–14U CSYBAChicago Suburban Youth Baseball USSSA Illinois eventsTravel weekends

Suburbs & towns parents search

Roselle, Medinah, Bloomingdale, Carol Stream, Wheaton, Glen Ellyn, Lombard, Downers Grove, Naperville, Aurora, Batavia, Geneva, St. Charles, Elgin, Schaumburg, Hoffman Estates, Streamwood, Bartlett, Hanover Park, Addison, Elmhurst, Villa Park, Oak Brook, Hinsdale, Clarendon Hills, Westmont, Darien, Bolingbrook, Plainfield, Oswego, Yorkville, Joliet, Orland Park, Tinley Park, Frankfort, Arlington Heights, Palatine, Mount Prospect, Des Plaines, Park Ridge, Evanston, Skokie, Niles, Buffalo Grove, Vernon Hills, Libertyville, Gurnee, Crystal Lake, Algonquin.

Typical stamp patterns

Park district / in-house: often USABat or dual USA+USSSA (confirm).
WSBL / travel invitation leagues: USA, USSSA 1.15, BBCOR, wood with age drop caps.
Weekend tournaments: follow the event sanction (USSSA / PG / Triple Crown).

Related: Midwest · Nationwide locals

Barrel size by age Stamp-family default

Maximum barrel diameter (inches) commonly published for this program. Length and drop limits are separate — check the notes.

Age / division	Max barrel	Notes
Rec / Little League / PONY-style house	2⅝″ max	Usually USABat
Travel weekends (USSSA / PG)	Up to 2¾″ if big-barrel USSSA allowed	Event tab controls
High school / older	2⅝″ max	BBCOR −3

Metro hub: mixed stamp traffic. Use named league pages when listed; otherwise match your program’s stamp + this diameter guide, then confirm the local PDF.

Confirm with your league: Exact barrel caps can differ by town, age group, and season PDF. Use this table as a starting point.

Reference: Stamp-family defaults — confirm with your league

Rules change. Always confirm with your league or event director before game day.

Page reviewed: October 23, 2026