On July 13, 2017, Yim returned to WWE by entering the Mae Young Classic tournament, defeating Sarah Logan in her first round match. The following day, Yim was eliminated from the tournament in the second round by Shayna Baszler. On August 9, 2018, Mia Yim once again returned to the WWE by entering the Mae Young Classic tournament for the second time, defeating Allysin Kay in the first round and the returning Kaitlyn in the second before losing to Toni Storm in the quarterfinals.