Amanda Nunes shies away from no challenge.

The American Top Team ace will put her undisputed Ultimate Fighting Championship featherweight title on the line against Megan Anderson in the UFC 259 co-headliner on Saturday at the UFC Apex in Las Vegas. Nunes has compiled a 13-1 record since she joined the promotion seven-plus years ago. She last fought at UFC 250, where she laid claim to a five-round unanimous decision over Felicia Spencer on June 6. Anderson, meanwhile, enters the cage on the strength of back-to-back victories. She last appeared at UFC Fight Night 169 on Feb. 29, 2020, when she knocked out Norma Dumont in the first round of their brief encounter.

As Nunes and Anderson make their final preparations, a look at some of the numbers that have accompanied them to this point:

32: Years of age for Nunes, who was born on May 30, 1988 in Pojuca, Brazil.

5: Sub-minute victories on the Nunes resume. She prompted a corner stoppage against Paty Barbosa in 11 seconds on May 24, 2008, turned away Nadja Nadja with punches in 10 seconds on July 1, 2008, wiped out Julia Budd with punches in 14 seconds on Jan. 7, 2011, dispatched Ronda Rousey with punches in 48 seconds on Dec. 30, 2016 and punched out Cristiane Justino in 51 seconds on Dec. 29, 2018.

13: Knockout wins for Nunes, accounting for 65% of her career total (20). Her list of victims includes Raquel Pennington, Shayna Baszler, Ediane Gomes and Vanessa Porto. Nunes owns three other victories by submission and four more by decision.

2,352: Days that have passed since Nunes last tasted defeat. She has rattled off 11 consecutive wins since she succumbed to elbows and punches from Cat Zingano at UFC 178 in 2014.

9: Nunes victories over current or former UFC or Bellator MMA champions. In addition to Justino, Rousey and Budd, she has beaten Holly Holm, Miesha Tate, Germaine de Randamie (twice) and Valentina Shevchenko (twice).

31: Years of age for Anderson, who was born on Feb. 11, 1990 in Gold Coast, Australia.

4: Featherweight titleholders, including Anderson, in Invicta Fighting Championships history. Justino, Spencer and Pam Sorenson are the others.

3: Submission wins on the Anderson ledger, accounting for 27% of her professional total (11). Her methods of choice: one triangle choke, one armbar and one rear-naked choke. Anderson boasts six other victories by knockout and two by decision.

6: First-round finishes to Anderson’s credit. A 61-second stoppage of the aforementioned Zingano at UFC 232 on Dec. 29, 2018 remains the fastest finish of her 15-fight career.

.722: Cumulative winning percentage between the four women—Spencer, Holm, Cindy Dandois and Zoie Shreiweis—who have managed to defeat Anderson. They own a combined record of 39-15.