By The Numbers: Mackenzie Dern vs. Amanda Ribas

A five-year wait soon comes to an end for Mackenzie Dern.

The decorated Brazilian jiu-jitsu black belt will meet Amanda Ribas for a second time in the Ultimate Fighting Championship women’s strawweight division when their rematch headlines UFC Fight Night 249 on Jan. 11 at the UFC Apex in Las Vegas. Dern suffered her first professional defeat at the hands of the Brazilian in 2019. She enters the Octagon with victories in seven of her past 11 assignments. Dern last competed on Aug. 3, when she outpointed Lupita Godinez to a unanimous decision at UFC on ABC 7. Ribas, meanwhile, has alternated wins and losses in each of her past seven outings. The affable Brazilian last suited up at UFC on ESPN 53, where she dropped a five-round unanimous decision to Rose Namajunas on March 23.

As Dern and Ribas approach their forthcoming clash at 115 pounds, a look at some of the numbers that have accompanied them to this point:

31: Years of age for Dern, who was born in Phoenix on March 24, 1993.

7: Dern wins by submission, accounting for 50% of her career total (14). Her methods of choice: three rear-naked chokes, three armbars and one kneebar. Dern owns seven other wins by decision (50%).

147: Seconds needed for Dern to dispatch Amanda Bobby Brundage with a rear-naked choke at UFC 224 on May 12, 2018. Six-plus years later, it remains her fastest finish to date.

50: Rounds started by Dern as a professional mixed martial artist. She has gone the distance on 11 different occasions and carries a 7-4 record in those bouts.

89: Combined victories between the five opponents—Ribas, Amanda Lemos, Jessica Andrade, Xiaonan Yan and Marina Rodriguez—who have beaten Dern. They sport a cumulative .736 winning percentage at 89-31-3.

31: Years of age for Ribas, who was born on Aug. 26, 1993 in Varginha, Brazil.

4: Ribas victories by knockout or technical knockout, accounting for 31% of her career total (13). Her list of victims: Luana Pinheiro, Jennifer Gonzalez, Gessyca Santos and Iara Sales. Ribas holds four other victories by submission (31%) and five more by decision (38%).

100,000: Dollars in post-fight bonuses pocketed by Ribas across her 11 appearances in the UFC. She has been awarded “Performance of the Night” and “Fight of the Night” once each.

5: Women besides Ribas who have captured the Jungle Fight women’s strawweight championship. Ericka Almeida, Polyana Viana, Stephanie Luciano, Faelly Vitoria and Laura Vasconcelos are the others.

.731: Cumulative winning percentage between the five opponents—Namajunas, Rodriguez, Viana, Maycee Barber and Katlyn Cerminara—who have defeated Ribas. They boast a combined record of 75-27-2.