{"id":9009,"date":"2026-04-20T09:00:00","date_gmt":"2026-04-20T09:00:00","guid":{"rendered":"https:\/\/havenbjj.nl\/?p=8002"},"modified":"2026-04-20T09:00:00","modified_gmt":"2026-04-20T09:00:00","slug":"kings-day-open-mat","status":"publish","type":"post","link":"https:\/\/havenbjj.nl\/en\/koningsdag-open-mat\/","title":{"rendered":"King's Day Open Mat"},"content":{"rendered":"<h1>King's Day Open Mat<\/h1>\n<p>Monday the 27th is King's Day. For many of you, that means a festival, selling old stuff, or eating tompouce at home. But for the kings and queens who want to train, we traditionally organize the King's Day Open Mat! You can register easily via the app. See you there.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/mcusercontent.com\/862fa8b6dd7ae3358e2cbb840\/images\/a0a3502b-7b69-d8dc-5b54-82ea16db24ef.png\" alt=\"King&#039;s Day Open Mat\"><\/p>","protected":false},"excerpt":{"rendered":"<p>King's Day Open Mat Monday the 27th is King's Day. For many of you, that means a festival, selling old stuff, or eating tompouce at home. But for the kings and queens who want to train, we traditionally organize the King's Day Open Mat! You can register easily via the app. See you there.<\/p>","protected":false},"author":2,"featured_media":9010,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-9009","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nieuwsbrief"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Koningsdag Open Mat - HavenBJJ<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/havenbjj.nl\/en\/kings-day-open-mat\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Koningsdag Open Mat - HavenBJJ\" \/>\n<meta property=\"og:description\" content=\"Koningsdag Open Mat Maandag de 27e is het Koningsdag. Voor veel van jullie betekent dat een festival, oude zooi (ver)kopen of thuis tompoucen eten. Maar voor de kings en queens die willen trainen organizeren we traditiegetrouwen de Koningsdag Open Mat! Inschrijven kan gewoon via de app. Zie je daar.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/havenbjj.nl\/en\/kings-day-open-mat\/\" \/>\n<meta property=\"og:site_name\" content=\"HavenBJJ\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/HavenBJJ\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-20T09:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mcusercontent.com\/862fa8b6dd7ae3358e2cbb840\/images\/a0a3502b-7b69-d8dc-5b54-82ea16db24ef.png\" \/>\n<meta name=\"author\" content=\"Daniel de Groot\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Daniel de Groot\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/\"},\"author\":{\"name\":\"Daniel de Groot\",\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/#\\\/schema\\\/person\\\/e9dc102068575946dfe3f99cb97803c3\"},\"headline\":\"Koningsdag Open Mat\",\"datePublished\":\"2026-04-20T09:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/\"},\"wordCount\":53,\"publisher\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/havenbjj.nl\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/a0a3502b-7b69-d8dc-5b54-82ea16db24ef.png\",\"articleSection\":[\"Nieuwsbrief\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/\",\"url\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/\",\"name\":\"Koningsdag Open Mat - HavenBJJ\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/havenbjj.nl\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/a0a3502b-7b69-d8dc-5b54-82ea16db24ef.png\",\"datePublished\":\"2026-04-20T09:00:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#primaryimage\",\"url\":\"https:\\\/\\\/havenbjj.nl\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/a0a3502b-7b69-d8dc-5b54-82ea16db24ef.png\",\"contentUrl\":\"https:\\\/\\\/havenbjj.nl\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/a0a3502b-7b69-d8dc-5b54-82ea16db24ef.png\",\"width\":1080,\"height\":1350},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/koningsdag-open-mat\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/havenbjj.nl\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Koningsdag Open Mat\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/havenbjj.nl\\\/#website\",\"url\":\"https:\\\/\\\/havenbjj.nl\\\/\",\"name\":\"Haven BJJ\",\"description\":\"BJJ &amp; 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