Margin for error looks to be menacingly thin for Denice Zamboanga and the rest of the One Championship women’s atomweights.

The Filipino standout will seek to improve upon her 4-2 record within the company when she meets Julie Mezabarba in a featured ONE on Prime Video 9 attraction this Friday at Singapore Indoor Stadium in Kallang, Singapore. Zamboanga has lost two of her past three fights. She last appeared at ONE on Prime Video 5, where she eked out a split decision over Heqin Lin across three rounds on Dec. 2. Mezabarba, meanwhile, finds herself on a two-fight losing streak. She last competed on June 3, when she wound up on the wrong side of a split verdict against Jennifer Olsim at ONE 158.

As Zamboanga and Mezabarba approach their high-stakes clash at 115 pounds, a look at some of the numbers that have accompanied them to this point:

26: Years of age for Zamboanga, who was born on Jan. 14, 1997 in Quezon City, Philippines.

3: Zamboanga wins by submission, accounting for 33% of her career total (nine). Her methods of choice: one keylock, one armbar and one rear-naked choke. Zamboanga owns two other wins by knockout or technical knockout (22%) and four more by decision (45%).

44: Seconds needed for Zamboanga to dismiss Paj Nut with punches in her pro debut under the Southeast Asia Fighting Championship banner on Jan. 6, 2017. More than six years later, it remains her fastest finish to date.

6: Consecutive calendar years in which Zamboanga has fought at least once. She went 2-0 in 2017, 3-0 in 2018, 1-0 in 2019, 2-0 in 2020, 0-1 in 2021 and 1-1 in 2022.

45: Combined victories between the four opponents—Lin, Watsyapinya Kaewkhong, Mei Yamaguchi and Jihin Radzuan—Zamboanga has beaten as a member of the ONE roster. They sport a cumulative .657 winning percentage at 45-23-2.

30: Years of age for Mezabarba, who was born in Rio de Janeiro on Feb. 15, 1993.

3: Mezabarba victories by knockout or technical knockout, accounting for 33% of her career total (nine). Her list of victims: Lohayne Lopes, Adrielle Porto Santos and Priscila Gomes. Mezabarba holds six other victories by decision (67%).

31: Rounds completed by Mezabarba as a professional mixed martial artist. She has left her fate to the judges on 10 different occasions and carries a 6-3-1 record in those bouts.

2: Countries in which Mezabarba has plied her MMA trade. She has gone 8-2-1 in her native Brazil and 1-2 in Singapore.

.676: Cumulative winning percentage between the four opponents—Olsim, Nong Stamp, Nathielly Santos Campahy and Tatiane Damiana Bergamaschi—who have defeated Mezabarba. They boast a combined record of 23-11.