When Kenyan Ruth Chepng'etich took nearly two minutes off the women's marathon world record, the sporting world was aghast. How did she do it? Shoe tech, nutrition, race tactics? With a doping cloud hanging over Kenyan athletics, it's easy to see why so many are sceptical. Join Prof. Ross Tucker and sports journalist Mike Finch as they assess every aspect of the run in an effort to explain one of the most astonishing running performances in history. SHOW NOTES The paper by Mason et al on how the shoes have boosted women’s distance runners more then men. The Joubert & Jones paper that compares different shoes, including Figure 2 that shows the individual variation between models of the same brand. Another similar paper on individual variability by Knopp et al. For analysis of the performances since super shoes were introduced. A piece by Toni Reavis in defence of Chepngetich’s performance. The article by Amby Burfoot that Reavis mentions. Amby does not hold back. The AIU list of Kenyans currently serving doping bans. You can count the drug type to see if the show conversation was accurate.  The CAS Decision on Rhonex Kipruto, in which his doping is described as a “sophisticated doping regime. Get bonus content on Patreon Hosted on Acast. See acast.com/privacy for more information.