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Barrington High School

(847)381-1400

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2028

Jack Postma

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(847)381-1400

616 W Main St, , Barrington, IL, US, 60010

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Jack Postma

2028 RHP, Barrington High School • Barrington,IL

On the mound today at the Underclass @AreaCodeBSB Games.

FB: 90-92 CH: 83-84 SL: 75-77

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08/02/2026 10:17:13 PM

Video Upload VIA Five Tool Social

Jack Postma

2028 RHP, Barrington High School • Barrington,IL

Comes out of the pen with no outs and strikes out the side only needing the FB. Good ride from a low release height on display here at the Underclass @AreaCodeBSB Games.

FB: 90-92

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08/02/2026 09:58:39 PM

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