{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/f3fb5c75-b943-4f5d-bd87-27c91611dd24/6acf31196203da9f28231cd4?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Why Did the Kona Ironman Leaders Collapse? Heat, Fuel and Failure / Chicago Marathon’s Underwhelming Fast Times","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/6100856531fd81f125b34dac/1791962243175-f7ae05d5-1c23-433c-8dce-6dcf00aeaa02.jpeg?height=200","description":"<p><a href=\"https://www.patreon.com/c/thescienceofsport/membership\" rel=\"noopener noreferrer\" target=\"_blank\">Become a Supporter</a> for ad-free shows, a members-only Applied show every week (durability, this week), and Discourse, where Ironman collapses and other topics are being explored with insight and experience!</p><p><br></p><p><strong><u>Show notes</u></strong></p><p><br></p><p>This week, why Solveig Løvseth and Magnus Ditlev collapsed in the heat at the Ironman World Championship in Kona, whether sports science innovation plays a part, and a Chicago Marathon that was faster than it felt:</p><p><br></p><ul><li>(00:01:52) Amos Kipruto and Hawi Feysa win Chicago in the fifth-fastest times in history, though with no splits on screen we were left guessing. Jacob Kiplimo’s hamstring leaves him off a road podium for the first time in 27 races, and <a href=\"https://www.letsrun.com/news/2026/10/after-one-of-the-most-insane-marathon-buildups-ever-how-fast-can-strava-legend-vinny-mauri-run-at-the-chicago-marathon/\" rel=\"noopener noreferrer\" target=\"_blank\">treadmill-trained Vincent Mauri</a> made a bid for the US record but also fell foul of hamstring issues</li><li>(00:07:40) Ross analyses the top 100 marathoners in history. How many races did it take them to run their best time, and what does a suspicious late PB look like?</li><li>(00:23:02) Paul Seixas wins Il Lombardia, after riders delay the start to protest vehicles on the course. Gareth wants more from the riders, for their own benefit</li><li>(00:34:05) Solveig Løvseth collapses within reach of a second Kona title, and Ditlev drops out while leading. <a href=\"https://www.vg.no/sport/i/PgjPaz/solveig-loevseth-kollapset-i-sjokkmodus-jeg-prioriterte-helsen\" rel=\"noopener noreferrer\" target=\"_blank\">Her manager blamed nutrition and salt</a>, while <a href=\"https://www.instagram.com/p/DeYAJJ4oi1p/\" rel=\"noopener noreferrer\" target=\"_blank\">she doesn&#39;t know what went wrong</a>. We think heat is the likeliest suspect, and that these athletes are highly unlikely to be under fuelling. We ask whether carbs and super shoes have have raised every limit except body temperature, and allowed athletes to crash into it more often? Should races monitor core temperature, and pull staggering/falling athletes out?</li><li>(00:54:16) Two new carb studies (<a href=\"https://www.ovid.com/jnls/acsm-msse/abstract/10.1249/mss.0000000000004176~effects-of-10-90-120-and-150-gh--1-cho-on-substrate?redirectionsource=fulltextview\" rel=\"noopener noreferrer\" target=\"_blank\">150 vs 120 vs 10 grams an hour</a>, and <a href=\"https://www.ovid.com/jnls/acsm-msse/abstract/10.1249/mss.0000000000004180~carbohydrate-intake-of-100-vs-60-gh-during-prolonged-cycling?redirectionsource=fulltextview\" rel=\"noopener noreferrer\" target=\"_blank\">100 beats 60 for improved durability</a>), and how much you really need</li><li>(01:00:02) <a href=\"https://sportsouthafrica.co.za/pieter-coetze-smashes-world-record-as-team-sa-secures-four-medals-so-far-in-tashkent/\" rel=\"noopener noreferrer\" target=\"_blank\">Pieter Coetze breaks the 50m backstroke world record</a>. Is he South Africa’s likeliest gold medallist in LA?</li><li>(01:02:29) And finally, Rwanda will host Africa’s first Grand Prix since 1993, and a <a href=\"https://media.fifpro.org/media/kq2coak2/english_pwm_men-s-annual-report_digital.pdf\" rel=\"noopener noreferrer\" target=\"_blank\">FIFPro report shows Luka Modrić played 76 matches in a season</a>, and Moisés Caicedo flew 25,000km for four matches in 14 days.</li></ul><p><br></p><p>Other links:</p><ul><li>One of the many famous Ironman &quot;collapses&quot; - <a href=\"https://www.youtube.com/watch?v=MTn1v5TGK_w\" rel=\"noopener noreferrer\" target=\"_blank\">the crawl with Sian Welch and Wendy Ingraham,</a> this was for 4th/5th in 1997</li><li>In 1982, perhaps the first, and the <a href=\"https://www.youtube.com/watch?v=nVKqFAPdjIA\" rel=\"noopener noreferrer\" target=\"_blank\">one that helped create the aura around Ironman, featured Julie Moss losing the race with 50m to run</a></li></ul>","author_name":"Professor Ross Tucker and Mike Finch"}