Another chapter was needed in one of Konfrontacja Sztuk Walki’s most compelling rivalries.

Jakub Wiklacz will faces Sebastian Przybysz for a fourth time when he defends his undisputed bantamweight crown in the KSW 86 main event on Saturday at Hala Orbita in Wroclaw, Poland. The champion maintains a 2-1 advantage in their head-to-head series. Wiklacz enters the cage on the strength of a four-fight winning streak. He operates out of the Arrachion Olsztyn camp fronted by Szymon Bonkowski and Pawel Derlacz in central Poland. Przybysz, meanwhile, has rattled off eight wins across his past nine outings. He last competed at KSW 84, where he choked Islam Djabrailov unconscious with a third-round guillotine on July 14.

As Wiklacz and Przybysz prepare to complete their tetralogy at 135 pounds, a look at some of the numbers that have accompanied them to this point:

27: Years of age for Wiklacz, who was born in Olsztyn, Poland, on Sept. 10, 1996.

9: Wiklacz victories by submission, accounting for 64% of his career total (14). His methods of choice: four guillotine chokes, two rear-naked chokes, two triangle chokes and one armbar. Wiklacz holds five other victories by decision (36%).

58: Seconds needed for Wiklacz to dismiss Nickolas Kosmel with an armbar at a Fighters Arena show on June 8, 2014. More than nine years later, it remains his fastest finish to date.

37: Rounds completed by Wiklacz as a professional mixed martial artist. He has gone the distance on six different occasions and carries a 5-0-1 record in those bouts.

.706: Cumulative winning percentage between the three opponents—Przybysz, Dukvaha Astamirov and Dawid Gralka—who have beaten Wiklacz. They boast a combined record of 24-10.

30: Years of age for Przybysz, who was born on July 28, 1993 in Gdansk, Poland.

5: Przybysz wins by knockout or technical knockout, accounting for 42% of his career total (12). His list of KSW victims: Wiklacz, Gralka, Filip Macek and Bogdan Barbu. Przybysz owns four other wins by submission (33%) and three more by decision (25%).

1,477: Days between setbacks for Przybysz. He dropped a unanimous verdict to Antun Racic at KSW 46 on Dec. 1, 2018 and did not lose again until he wound up on the wrong side of a split decision against Wiklacz at KSW 77 on Dec. 17, 2022.

8: Consecutive calendar years in which Przybysz has fought at least once. In addition to his 2-0 mark in 2023, he has gone 2-0 in 2016, 1-1 in 2017, 1-1 in 2018, 2-0 in 2019, 1-0 in 2020, 2-0 in 2021 and 1-1 in 2022.

41: Combined victories between the two opponents—Wiklacz (twice) and Racic—who have defeated Przybysz. They sport a cumulative .737 winning percentage at 41-14-2.