The WTA recently announced that it will require all athletes who wish to compete to undergo a genetic cheek swab test to “prove” they are indeed a woman. This follows the IOC’s policy announcement from earlier this year, which itself followed a Trump executive order ahead of the 2028 Olympics. It exists within the larger context of anti-trans legislation and the inescapable language of “protection.” We spend the first half of the episode trying to understand the policy and what has prompted it; the historic context; the broader movement to bar trans women from women’s sport and, in some cases, to delegitimize trans identity altogether; and what the current science tells us. Later, we attempt to decipher the barely-followable PTPA infighting and who’s fighting for what. We also touch on some tennis results, wedding season, a doping story and a match fixing story, and finally the recently announced US Open mixed doubles pairings.