Former world steeplechase champion, Norah Jeruto, cleared of doping charges despite adverse findings in her biological passport. Controversy surrounding Caster Semenya's tell-all book and the ongoing debate about her eligibility as a female athlete. The potential of a sub-2 hour marathon record and the implications of constant carbohydrate consumption during endurance events. Exploration of the definition of male and female based on biology and historical cases of athletes with ambiguous genitalia. Recent marathon world record set by Calvin Kip and its impact on the excitement for new records. The complexity of a significant doping case and the implications for the anti-doping system. The process of appealing a rule violation in athletics and the use of the biological passport to assess athletes for doping.