Sports is one area where the rights of transwomen may have a persistent advantage. Does hormone therapy for enough time or given early enough in life level the playing field for sports, and what variables effect this? The answer is when it comes to, young adult transitioners muscular strength, after 1-2 years on hormones, most differences will vanish. Transgender women do retain an advantage in speed after that period. \cite{Roberts577} At the level of youth elementary, middle and high school sports due to the differential effcts of puberty someone changing at those ages will have no material advantage \cite{BJSM}. Further research is needed into the advantages if any at the level of elementary school, and high school.