When the girls’ soccer team at Plymouth Regional High School in New Hampshire began practice on Monday to prepare for the start of the official season on Aug. 30, transgender athlete Parker Tirrell was able to join her teammates. That’s what a federal judge ruled on Monday after the families of two transgender teens — 15-year-old Tirrell and 14-year-old Iris Turmelle — filed a lawsuit Friday, days before a new law went into effect that would have prohibited them from playing with teams that align with their gender identity. They argued that the legislation is in violation of the teens’ Title IX rights, the civil rights law that prohibits sex-based discrimination in educational settings that receive federal funding.