When it comes to win/loss records alone, there’s an argument to made that Joanna Jedrzejczyk is already the most successful woman to ever compete in the UFC. The reigning strawweight champion carries a flawless 7-0 Octagon record into her May 13 title defense against Jessica Andrade at UFC 211 — a number that already exceeds the résumé of Ronda Rousey, whose 6-2 UFC run widely popularized the women’s side of the sport, but faded away before it could reach an Anderson Silva or Demetrious Johnson level of sustained excellence.