Should transgender athletes be allowed to compete against athletes that differ from their assigned sex at birth?

In 2016 the International Olympic committee ruled that transgender athletes can compete in the Olympics without undergoing sex reassignment surgery. In 2018 the International Association of Athletics Federations, track’s governing body, ruled that women who have more than 5 nano-mols per liter of testosterone in their blood—like South African sprinter and Olympic gold medalist Caster Semenya—must either compete against men, or take medication to reduce their natural testosterone levels. The IAAF stated that women in the five-plus category have a “difference of sexual…   development.” The ruling cited a 2017 study by French researchers as proof that female athletes with testosterone closer to men do better in certain events: 400 meters, 800 meters, 1,500 meters, and the mile. "Our evidence and data show that testosterone, either naturally produced or artificially inserted into the body, provides significant performance advantages in female athletes," said IAAF President Sebastian Coe in a statement.