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. 2021 Nov 9;9(11):23259671211050127. doi: 10.1177/23259671211050127

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© The Author(s) 2021

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Comparison of violation rate ratios by age division (reference: 8U age division) for (A) any violation, (B) maximum pitch count violation, (C) inadequate rest violation, and (D) same-day pitching violation. Age divisions consisted of 8-and-under (8U) through 14-and-under (14U). Error bars represent 95% CI. *P < .05; **P < .01; ***P < .001.