{"id":155,"date":"2025-06-30T16:56:36","date_gmt":"2025-06-30T16:56:36","guid":{"rendered":"https:\/\/www.baseball-reference.com\/glossary\/?p=155"},"modified":"2025-09-05T15:49:10","modified_gmt":"2025-09-05T15:49:10","slug":"strike-zone","status":"publish","type":"post","link":"https:\/\/www.baseball-reference.com\/glossary\/strike-zone\/","title":{"rendered":"Strike Zone"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-what-is-the-strike-zone\">What is the Strike Zone?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Strike Zone is the area above home plate where the umpire will call a pitch a strike, regardless of whether or not the hitter swings at it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-is-the-strike-zone-used\">How is the Strike Zone used?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The strike zone is enforced by the home plate umpire and used to ensure a pitcher must swing at pitches instead of waiting for their ideal one.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-measure-the-strike-zone\">How to measure the Strike Zone?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Strike Zone is defined, in the official rule book, as:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">&#8220;That area over home plate the upper limit of which is a horizontal line at the midpoint between the top of the shoulders and the top of the uniform pants, and the lower level is a line at the hollow beneath the knee cap. The Strike Zone shall be determined from the batter&#8217;s stance as the batter is prepared to swing at a pitched ball&#8221;<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">As a result, the strike zone will be different for each player, with taller player having larger strike zones and shorter players having smaller ones. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although it has a specific definition, the umpire&#8217;s judgement ends up accounting for a lot of the definition of the strike zone. Some umpires have larger or smaller ones, and some may not call balls and strikes consistently throughout a game.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As a result, there have been calls for a &#8220;robo-ump&#8221; system that would use digital systems like PITCHf\/x to call the game. Independent and minor leagues have experimented with this system, but as of 2025, it hasn&#8217;t been implemented. A challenge system is also something MLB tried in 2025 Spring Training.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-interesting-strike-zone-stats\">Interesting Strike Zone Stats<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Catchers receiving pitches can use a technique called &#8220;pitch framing&#8221; to make balls outside the zone appear as if they are actually strikes. This is a skill that some catchers excel at, and can be a substantial advantage for their team over the course of a full season. As of this writing in 2025, Alejandro Kirk is considered the best catcher in baseball at this particular skill.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the Strike Zone? The Strike Zone is the area above home plate where the umpire will call a pitch a strike, regardless of whether or not the hitter swings at it. How is the Strike Zone used? The strike zone is enforced by the home plate umpire and used to ensure a pitcher [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-155","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Strike Zone: Baseball-Reference.com<\/title>\n<meta name=\"description\" content=\"The Strike Zone is the area above home plate where the umpire will call a pitch a strike, regardless of whether or not the hitter swings at it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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