{"id":289,"date":"2025-07-17T15:52:32","date_gmt":"2025-07-17T15:52:32","guid":{"rendered":"https:\/\/www.baseball-reference.com\/glossary\/?p=289"},"modified":"2025-07-18T04:38:37","modified_gmt":"2025-07-18T04:38:37","slug":"grand-slam","status":"publish","type":"post","link":"https:\/\/www.baseball-reference.com\/glossary\/grand-slam\/","title":{"rendered":"Grand Slam"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-grand-slam\">What is a Grand Slam? <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A&nbsp;<strong>grand slam<\/strong>&nbsp;is a home run hit with the bases loaded. That means there are runners on first, second, and third base when the batter goes deep. It results in four runs scored, the maximum possible on a single play.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Grand slams are among the most impactful moments in a game. Not only does the batter score, but all three base runners do as well. It&#8217;s one of the biggest momentum-shifting swings in baseball and often changes the outcome of a game in one swing. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-is-a-grand-slam-used\">How is a Grand Slam used?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A grand slam is used to measure high-leverage power hitting. It shows a player\u2019s ability to deliver when the bases are loaded and pressure is high. While hitting with the bases loaded is rare on its own, going deep in that opportunity is even rarer \u2014 which becomes valuable to any team. Historically, grand slams are a big part of signature games and highlight moments for power hitters.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-calculate-a-grand-slam\">How to calculate a Grand Slam?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There\u2019s no formula to calculate a grand slam \u2014 it\u2019s a result of the situation. It occurs when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The batter hits a home run<\/li>\n\n\n\n<li>The bases are loaded at the time of the swing<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">All four runs count as earned runs against the pitcher, and the hitter is credited with one home run and four RBIs. Grand slams count the same in the box score as any other home run, but their impact is amplified in certain game situations, thanks to win probability added. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-grand-slam-examples\">Grand Slam Examples<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Some players have hit grand slams, but these players specifically hit theirs during a World Series game:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-addison-russell-game-6-2016-world-series-cubs-vs-indians\">Addison Russell &#8211; Game 6 &#8211; 2016 World Series Cubs vs Indians <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.baseball-reference.com\/boxes\/CLE\/CLE201611010.shtml\">https:\/\/www.baseball-reference.com\/boxes\/CLE\/CLE201611010.shtml<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-alex-bregman-game-4-2019-world-series-astors-vs-nationals\">Alex Bregman &#8211; Game 4 &#8211; 2019 World Series Astors vs Nationals <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.baseball-reference.com\/boxes\/WAS\/WAS201910260.shtml\">https:\/\/www.baseball-reference.com\/boxes\/WAS\/WAS201910260.shtml<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-adam-duvall-game-5-2021-world-series-braves-vs-astros\">Adam Duvall &#8211; Game 5 &#8211; 2021 World Series Braves vs Astros <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.baseball-reference.com\/boxes\/ATL\/ATL202110310.shtml\">https:\/\/www.baseball-reference.com\/boxes\/ATL\/ATL202110310.shtml<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a Grand Slam? A&nbsp;grand slam&nbsp;is a home run hit with the bases loaded. That means there are runners on first, second, and third base when the batter goes deep. It results in four runs scored, the maximum possible on a single play. Grand slams are among the most impactful moments in a game. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[107],"tags":[],"class_list":["post-289","post","type-post","status-publish","format-standard","hentry","category-statistics"],"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>Grand Slam: Baseball-Reference.com<\/title>\n<meta name=\"description\" content=\"A\u00a0grand slam\u00a0is a home run hit with the bases loaded.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.baseball-reference.com\/glossary\/grand-slam\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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