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    <channel>
        <title><![CDATA[Stories by Brian Rock on Medium]]></title>
        <description><![CDATA[Stories by Brian Rock on Medium]]></description>
        <link>https://medium.com/@brianrock.nj?source=rss-32d8558adc34------2</link>
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            <title>Stories by Brian Rock on Medium</title>
            <link>https://medium.com/@brianrock.nj?source=rss-32d8558adc34------2</link>
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        <lastBuildDate>Sat, 14 Nov 2026 02:48:52 GMT</lastBuildDate>
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        <item>
            <title><![CDATA[2026 Sydney Marathon By the Numbers]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/2026-sydney-marathon-by-the-numbers-6f1c9875273f?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1100/0*SktYbrtvmchsv_vS.png" width="1100"></a></p><p class="medium-feed-snippet">In its second year as a Major, how is the race changing?</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/2026-sydney-marathon-by-the-numbers-6f1c9875273f?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/2026-sydney-marathon-by-the-numbers-6f1c9875273f?source=rss-32d8558adc34------2</link>
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            <category><![CDATA[data-analysis]]></category>
            <category><![CDATA[marathon]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[data-visualization]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 06 Sep 2026 16:32:16 GMT</pubDate>
            <atom:updated>2026-09-06T19:07:19.059Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[Which of the Majors Have the Fastest Age Group Winners?]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/which-of-the-majors-have-the-fastest-age-group-winners-ddae62d404c6?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1600/0*f276mMnJJb-yIuhR.jpg" width="1600"></a></p><p class="medium-feed-snippet">It might not be the race you think it is</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/which-of-the-majors-have-the-fastest-age-group-winners-ddae62d404c6?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/which-of-the-majors-have-the-fastest-age-group-winners-ddae62d404c6?source=rss-32d8558adc34------2</link>
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            <category><![CDATA[data-visualization]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[fitness]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[world-marathon-majors]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 02 Aug 2026 18:23:43 GMT</pubDate>
            <atom:updated>2026-08-04T17:44:30.293Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[What Are the Odds for the Boston Marathon’s New Lottery?]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/what-are-the-odds-for-the-boston-marathons-new-lottery-1d666d592268?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1600/0*EzJlvBzETPKyVYwv.jpg" width="1600"></a></p><p class="medium-feed-snippet">Missing the cutoff is no longer pure disappointment</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/what-are-the-odds-for-the-boston-marathons-new-lottery-1d666d592268?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/what-are-the-odds-for-the-boston-marathons-new-lottery-1d666d592268?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/1d666d592268</guid>
            <category><![CDATA[boston-marathon]]></category>
            <category><![CDATA[data-analysis]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[fitness]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sat, 25 Jul 2026 14:44:42 GMT</pubDate>
            <atom:updated>2026-07-26T14:02:43.306Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[Are Women More Likely to Pace Marathons Well Than Men?]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/are-women-more-likely-to-pace-marathons-well-than-men-dd39103630b2?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1600/0*VAN9_DUWuqSjbf7G.jpg" width="1600"></a></p><p class="medium-feed-snippet">Analysis of results from Berlin and critique of a new research study</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/are-women-more-likely-to-pace-marathons-well-than-men-dd39103630b2?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/are-women-more-likely-to-pace-marathons-well-than-men-dd39103630b2?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/dd39103630b2</guid>
            <category><![CDATA[science]]></category>
            <category><![CDATA[research]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[marathon]]></category>
            <category><![CDATA[data-analysis]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 12 Jul 2026 18:47:57 GMT</pubDate>
            <atom:updated>2026-07-12T23:01:01.328Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[The 2026 Grandma’s Marathon by the Numbers — Running with Rock]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/the-2026-grandmas-marathon-by-the-numbers-running-with-rock-dbdf6f3d0efc?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1120/0*BjYgp1ksLa4LgtKO.jpg" width="1120"></a></p><p class="medium-feed-snippet">I usually reserve these deep dives for the Majors and a handful of other really big races.</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/the-2026-grandmas-marathon-by-the-numbers-running-with-rock-dbdf6f3d0efc?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/the-2026-grandmas-marathon-by-the-numbers-running-with-rock-dbdf6f3d0efc?source=rss-32d8558adc34------2</link>
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            <category><![CDATA[data-analysis]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[fitness]]></category>
            <category><![CDATA[marathon]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Tue, 30 Jun 2026 15:19:30 GMT</pubDate>
            <atom:updated>2026-07-01T15:44:46.681Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[Boston Conversion Rate Revisited: Do Sydney Runners Apply to Boston?]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/boston-conversion-rate-revisited-do-sydney-runners-apply-to-boston-b2166e7f014b?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1024/0*6zjERbBPSlPO_s8c.png" width="1024"></a></p><p class="medium-feed-snippet">Has anything changed between the 2025 and 2026 Boston Marathons?</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/boston-conversion-rate-revisited-do-sydney-runners-apply-to-boston-b2166e7f014b?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/boston-conversion-rate-revisited-do-sydney-runners-apply-to-boston-b2166e7f014b?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/b2166e7f014b</guid>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[data-science]]></category>
            <category><![CDATA[data-analysis]]></category>
            <category><![CDATA[boston-marathon]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 21 Jun 2026 15:53:18 GMT</pubDate>
            <atom:updated>2026-06-21T16:19:21.134Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[What the Presidential Fitness Test Can Tell Us About How Fast Normal People Can Run]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/what-the-presidential-fitness-test-can-tell-us-about-how-fast-normal-people-can-run-dbd58ae5e75d?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1600/0*jf9_DqmhsERPMPfQ.jpg" width="1600"></a></p><p class="medium-feed-snippet">The average person may be faster than you think, at least back in 1985</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/what-the-presidential-fitness-test-can-tell-us-about-how-fast-normal-people-can-run-dbd58ae5e75d?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/what-the-presidential-fitness-test-can-tell-us-about-how-fast-normal-people-can-run-dbd58ae5e75d?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/dbd58ae5e75d</guid>
            <category><![CDATA[data-analysis]]></category>
            <category><![CDATA[research]]></category>
            <category><![CDATA[fitness]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[exercise]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 14 Jun 2026 14:31:43 GMT</pubDate>
            <atom:updated>2026-06-14T14:34:38.453Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[What Can We Learn From Marathon Race Reports on Reddit?]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/runners-life/what-can-we-learn-from-marathon-race-reports-on-reddit-3e3fe95120c0?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1920/1*5U0ygY4u-qF2L4Ykh1zFOQ.jpeg" width="1920"></a></p><p class="medium-feed-snippet">Using generative AI to turn qualitative data about running into quantitative data</p><p class="medium-feed-link"><a href="https://medium.com/runners-life/what-can-we-learn-from-marathon-race-reports-on-reddit-3e3fe95120c0?source=rss-32d8558adc34------2">Continue reading on Runner&#39;s Life »</a></p></div>]]></description>
            <link>https://medium.com/runners-life/what-can-we-learn-from-marathon-race-reports-on-reddit-3e3fe95120c0?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/3e3fe95120c0</guid>
            <category><![CDATA[data-science]]></category>
            <category><![CDATA[fitness]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[data-analysis]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Mon, 01 Jun 2026 01:21:10 GMT</pubDate>
            <atom:updated>2026-06-01T01:21:10.482Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[Marathons Are Still Selling Out Faster Than Ever: Spring 2026 Update]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/marathons-are-still-selling-out-faster-than-ever-spring-2026-update-2f83503cbdf8?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1501/0*GHZ56TnfVcBlVi0a.jpg" width="1501"></a></p><p class="medium-feed-snippet">Things show no signs of slowing down yet. Sign up for your next race early.</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/marathons-are-still-selling-out-faster-than-ever-spring-2026-update-2f83503cbdf8?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/marathons-are-still-selling-out-faster-than-ever-spring-2026-update-2f83503cbdf8?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/2f83503cbdf8</guid>
            <category><![CDATA[fitness]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[marathon]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 24 May 2026 01:55:22 GMT</pubDate>
            <atom:updated>2026-05-24T16:31:30.182Z</atom:updated>
        </item>
        <item>
            <title><![CDATA[The 2026 Paris Marathon by the Numbers]]></title>
            <description><![CDATA[<div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/running-with-rock/the-2026-paris-marathon-by-the-numbers-c8daf2e44fd0?source=rss-32d8558adc34------2"><img src="https://cdn-images-1.medium.com/max/1280/0*sHkHacEj19i1-295.png" width="1280"></a></p><p class="medium-feed-snippet">Did the cupless aid stations lead to slower finish times?</p><p class="medium-feed-link"><a href="https://medium.com/running-with-rock/the-2026-paris-marathon-by-the-numbers-c8daf2e44fd0?source=rss-32d8558adc34------2">Continue reading on Running with Rock »</a></p></div>]]></description>
            <link>https://medium.com/running-with-rock/the-2026-paris-marathon-by-the-numbers-c8daf2e44fd0?source=rss-32d8558adc34------2</link>
            <guid isPermaLink="false">https://medium.com/p/c8daf2e44fd0</guid>
            <category><![CDATA[fitness]]></category>
            <category><![CDATA[exercise]]></category>
            <category><![CDATA[paris-marathon]]></category>
            <category><![CDATA[running]]></category>
            <category><![CDATA[data-analysis]]></category>
            <dc:creator><![CDATA[Brian Rock]]></dc:creator>
            <pubDate>Sun, 17 May 2026 19:51:39 GMT</pubDate>
            <atom:updated>2026-05-18T00:01:02.162Z</atom:updated>
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