PARIS — The second boxer at the center of a global debate over gender eligibility and fairness at the Paris Olympics won her semifinal match Wednesday, ascending to the featherweight gold medal bout.

Lin Yu-ting, representing Chinese Taipei, defeated Esra Yildiz Kahraman of Turkey by a unanimous decision, advancing to the final round of the women’s 57-kilogram competition Saturday.

Lin and another female Olympic boxer, Imane Khelif of Algeria, continue to face intense scrutiny and false…