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Anthropometric measures, maturity status, growth hormone (GH), insulin-like growth factor and physical levels such as maximal oxygen uptake (VO<jats:sub>2max<\/jats:sub>), fatigue index, countermovement jump (CMJ) performance were collected. At the end-season, players were assessed in 6 different tests over four days.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>VO<jats:sub>2max<\/jats:sub> largely correlated with GH (<jats:italic>r<\/jats:italic>\u2009=\u20090.57) and CMJ (<jats:italic>r<\/jats:italic>\u2009=\u20090.51). Also, GH largely correlated with CMJ (<jats:italic>r<\/jats:italic>\u2009=\u20090.55). MP had moderate correlations with VO<jats:sub>2max<\/jats:sub> (<jats:italic>r<\/jats:italic>\u2009=\u20090.44) and CMJ (<jats:italic>r<\/jats:italic>\u2009=\u20090.42). Multiple linear regression with maturation, physical fitness and hormonal levels explained R<jats:sup>2<\/jats:sup> of 0.62 of the MP (<jats:italic>F<\/jats:italic> (8, 17) = 3.47, <jats:italic>p<\/jats:italic>\u2009=\u20090.015). Although each independent variable alone was not able to determine the playing time, when using the interactions, the model significantly explained the MP.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>The combination of maturity status, physical fitness, and hormonal levels seem to play a determinant role in explaining the match participation in youth soccer players.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12887-022-03257-7","type":"journal-article","created":{"date-parts":[[2022,4,11]],"date-time":"2022-04-11T11:07:11Z","timestamp":1649675231000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Associations between match participation, maturation, physical fitness, and hormonal levels in elite male soccer player U15: a prospective study with observational cohort"],"prefix":"10.1186","volume":"22","author":[{"given":"Ebrahim","family":"Eskandarifard","sequence":"first","affiliation":[]},{"given":"Hadi","family":"Nobari","sequence":"additional","affiliation":[]},{"given":"Filipe Manuel","family":"Clemente","sequence":"additional","affiliation":[]},{"given":"Rui","family":"Silva","sequence":"additional","affiliation":[]},{"given":"Ana Filipa","family":"Silva","sequence":"additional","affiliation":[]},{"given":"Antonio Jos\u00e9","family":"Figueiredo","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,4,11]]},"reference":[{"issue":"4","key":"3257_CR1","doi-asserted-by":"publisher","first-page":"389","DOI":"10.1080\/02640414.2010.536849","volume":"29","author":"P Ford","year":"2011","unstructured":"Ford P, de Ste CM, Lloyd R, Meyers R, Moosavi M, Oliver J, et al. 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