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Bullpen Tournaments @ Grand Park (Indiana)

Major Midwest tournament / weekend host at Grand Park Sports Campus (Westfield / Indianapolis metro). Many Indiana travel teams live on Bullpen weekends. Rules: bullpentournaments.com/baseball-rules.

7U–12UBPF 1.15

13U–14U1.15 or BBCOR + drops

15U–18UBBCOR −3 / wood

Grand ParkNo metal spikes

Published bat pattern (Bullpen baseball rules)

7U–12U: metal/composite with BPF 1.15 stamp; drops −12 / −10 / −8 / −5 acceptable.
13U: BPF 1.15 or BBCOR; D1 often −5 or −3; D2/D3/Open often −8 / −5 / −3.
14U: BPF 1.15 or BBCOR; D1 often −3; D2/D3/Open often −5 / −3.
15U–18U: BBCOR −3 metal/composite or single-piece wood.

Bullpen also publishes a banned-bat list (certain older models). Event pages can tighten further — always open the event tab.

Source: Bullpen Tournaments Baseball Rules. Grand Park / Championship Park: no metal spikes.

Confirm with Bullpen: This summarizes the national Bullpen rules page. Specific events at Grand Park can override — check that weekend.

Barrel size by age Published limits

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

Age / division	Max barrel	Notes
7U–12U	Per stamp (often up to 2¾″ USSSA)	BPF 1.15 required
13U–14U	Confirm division tab	1.15 or BBCOR + division drop caps
15U–18U	2⅝″ BBCOR class	BBCOR −3 or single-piece wood

Bullpen Tournaments published baseball bat restrictions. Confirm event page + banned list.

Confirm with your league: Exact barrel caps can differ by age group and season PDF.

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

Page reviewed: October 23, 2026