1.0HavenBJJhttps://havenbjj.nl/enDaniel de Groothttps://havenbjj.nl/en/author/daniel-de-groot/rich600338<blockquote class="wp-embedded-content" data-secret="B8w6dFsdY6"><a href="https://havenbjj.nl/en/privlessen/">Private Class</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://havenbjj.nl/en/privlessen/embed/#?secret=B8w6dFsdY6" width="600" height="338" title="“Privélessen” — HavenBJJ" data-secret="B8w6dFsdY6" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://havenbjj.nl/wp-includes/js/wp-embed.min.js </script>Privélessen We krijgen vaak de vraag: hoe kan ik zo snel mogelijk goed worden in BJJ/Grappling? Het klassieke antwoord is: Er zijn geen trucs. Gewoon zoveel mogelijk trainen. Maar, die truc is er eigenlijk wel. Want stel dat je een uur lang de tijd hebt met een ervaren coach, die gefocust is op jou beter […]