{"version":"1.0","provider_name":"Probably Overthinking It","provider_url":"https:\/\/www.allendowney.com\/blog","author_name":"AllenDowney","author_url":"https:\/\/www.allendowney.com\/blog\/author\/allendowney_6dbrc4\/","title":"Another step toward a two-hour marathon - Probably Overthinking It","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"2nNXArsJGr\"><a href=\"https:\/\/www.allendowney.com\/blog\/2023\/10\/09\/another-step-toward-a-two-hour-marathon\/\">Another step toward a two-hour marathon<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.allendowney.com\/blog\/2023\/10\/09\/another-step-toward-a-two-hour-marathon\/embed\/#?secret=2nNXArsJGr\" width=\"600\" height=\"338\" title=\"&#8220;Another step toward a two-hour marathon&#8221; &#8212; Probably Overthinking It\" data-secret=\"2nNXArsJGr\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/www.allendowney.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"This is an update to an analysis I run each time the marathon world record is broken. If you like this sort of thing, you will like my forthcoming book, Probably Overthinking It, which is available for preorder now. On October 8, 2023, Kelvin Kiptum ran the Chicago Marathon in 2:00:35, breaking by 34 seconds the record set last year by Eliud Kipchoge &#8212; and taking another big step in the progression toward a two-hour marathon. In a previous article,... Read More Read More","thumbnail_url":"https:\/\/www.allendowney.com\/blog\/wp-content\/uploads\/2023\/10\/image-3.png"}