At Survivor Series, Bayley faced Raw Women's Champion Becky Lynch and NXT Women's Champion Shayna Baszler in a non-title triple threat match to determine the superior women's champion, which Baszler won. On the November 29 episode of "SmackDown", she started a feud with Lacey Evans, after Bayley and Banks insulted the women of the SmackDown roster for their loss at Survivor Series, Evans then attacked Banks. At Royal Rumble on January 26, 2020, she successfully defended the title against Lacey Evans. On the following "SmackDown", Bayley claimed that she had beaten every woman on the roster, and Naomi interrupted, taking exception to the claim as Bayley had never beaten her, thus beginning a feud. On the February 14 episode of SmackDown, Bayley retained her title against Carmella using underhanded tactics. At Super ShowDown, Bayley defeated Naomi to retain the title. On March 8, Bayley surpassed Charlotte Flair's reign of 147 days, thus becoming the longest-reigning SmackDown Women's Champion. On the March 20 episode of "SmackDown", Bayley and Banks came to the ring saying that they were going to skip WrestleMania 36 this year, but they were interrupted by Paige, who announced that Bayley would defend her title against Naomi, Lacey Evans, Dana Brooke (who was later removed from the match), Tamina, and Sasha Banks in a six-pack elimination match at WrestleMania 36. At the event, Bayley retained the title after lastly pinning Evans. At Money in the Bank, Bayley retained the title against Tamina after a distraction from Banks.