Drew Dober joins exclusive club at 155

Moreno was the first champion in UFC history to be born in Mexico.

Moreno and Deiveson Figueiredo fought to the fourth draw in UFC title fight history at UFC 256.

Moreno and Figueiredo are the only set of fighters in UFC history to fight each other three consecutive times.

Moreno and Figueiredo are the only set of fighters in UFC history to fight each other four times.

Moreno is one of seven fighters in UFC history to earn a between-rounds stoppage in a title fight. He accomplished the feat at UFC 283.

Moreno competes in his 18th UFC flyweight bout, tied with Tim Elliott for second-most appearances in divisional history behind Joseph Benavidez (19).

Moreno is 7-3-2 since he returned to the UFC for a second stint in September 2019.

Moreno’s 10 victories in UFC flyweight competition are tied for fourth-most in divisional history behind Benavidez (13), Demetrious Johnson (13), and Alexandre Pantoja (13).

Moreno’s six stoppage victories in UFC flyweight competition are tied for fourth-most in divisional history behind Figueiredo (seven), Johnson (seven) and Pantoja (seven).

Moreno’s three submission victories in UFC flyweight competition are tied for fourth-most in divisional history behind Johnson (five), Pantoja (five) and Muhammad Mokaev (four).

Moreno’s seven fight-night bonuses for UFC flyweight bouts are second-most in divisional history behind Johnson (nine).

Moreno is 0-2-1 when competing in Mexico under the UFC banner.

Erceg enters the event on the first two-fight losing skid of his career. He hasn’t earned a victory since March 2024.

Drew Dober (27-13 MMA, 13-9 UFC) becomes the seventh fighter in history to make 25 or more UFC lightweight appearances. Jim Miller, Clay Guida, Gleison Tibau, Joe Lauzon, Michael Johnson and King Green also accomplished the feat.

Dober’s 10 stoppage victories in UFC lightweight competition are tied for fourth-most in divisional history behind Miller (17), Charles Oliveira (14) and Lauzon (13).

Dober’s nine knockout victories in UFC lightweight competition are tied with Dustin Poirier for most in divisional history.

Kelvin Gastelum (18-9 MMA, 13-9 UFC) once again returns to the middleweight division after a two-fight stint at welterweight where he went 1-1.

Joe Pyfer (13-3 MMA, 4-1 UFC) has earned 12 of his 13 career victories by stoppage. That includes all four of his UFC wins.

Raul Rosas Jr. (10-1 MMA, 4-1 UFC), 19, is the youngest of the 26 fighters scheduled to compete on the card.

Rosas Jr., at 18, became the youngest fighter in history to earn an octagon victory when he won at UFC 282.

Rosas Jr. absorbs just 1.66 significant strikes per minute in UFC bantamweight competition, the third-best rate in divisional history behind Chico Camus (1.31) and Montel Jackson (1.38).

Vince Morales (11-9 MMA, 3-7 UFC) has suffered four consecutive losses in UFC competition. He hasn’t earned an octagon victory since December 2021.

Morales is 0-2 since he returned to the UFC for a second stint in September 2024.

Saimon Oliveira (18-5 MMA, 0-2 UFC) returns to competition for the first time since Jan. 21, 2023. The 798-day layoff is the longest of his nearly 12-year career.

CJ Vergara (12-6-1 MMA, 3-4 UFC) lands 57 percent of his significant strike attempts in UFC flyweight competition, the second-best rate in divisional history behind Demetrious Johnson (57.2 percent).

Vergara lands 5.02 significant strikes per minute in UFC flyweight competition, the third-highest rate among active fighters in the weight class behind Joshua Van (8.1) and Manel Kape (5.04).

Christian Rodriguez (12-2 MMA, 5-2 UFC) is 2-1 since he moved up to the UFC featherweight division in March 2024.

Melquizael Costa (22-7 MMA, 3-2 UFC) makes his second UFC appearance in a 35-day stretch. He earned a victory at UFC Fight Night 252 on Feb. 22.

Loopy Godinez (12-5 MMA, 7-5 UFC) became the first female in history to win four UFC fights in a calendar year in 2023.

Godinez holds the modern-era record for shortest time between three UFC appearances at 42 days. She competed on Oct. 9, Oct. 16 and Nov. 20 of 2021.

Godinez has landed 28 takedowns in UFC strawweight competition, the third-most in divisional history behind Carla Esparza (49) and Claudia Gadelha (36).

Godinez lands 60.9 percent of her takedown attempts in UFC strawweight competition, the second-best rate in divisional history behind Piera Rodriguez (64.3 percent).

Godinez defends 66.2 percent of all opponent significant strike attempts in UFC strawweight competition, the second-best rate in divisional history behind Danielle Taylor (71.7 percent).

Jamall Emmers (20-8 MMA, 3-4 UFC) has alternated losses and wins over his past eight fights. He was defeated in his most recent bout at UFC on ESPN 54.

For more on the card, visit MMA Junkie’s event hub for UFC on ESPN 64.

UFC research analyst and live statistics producer Michael Carroll contributed to this story. Follow him on Twitter @MJCflipdascript.