35 fighters are eligible. Here are our top 15, with the UFC's official and Meta rankings beside them. These are FightIQ's own data rankings, not the UFC's: see the UFC's official Flyweight rankings.
We fit one strength rating per fighter from every UFC fight, and older fights count for less (a fight loses half its weight every three years). We rank on the cautious end of that rating, strength minus one unit of uncertainty, so a short record has to show more before it climbs. To appear in the top 15 a fighter needs a win over a ranked opponent, and to sit in the top five a win over a then-top-10 opponent. Read the full method.
Our data: #1 · 11-1 in the UFC, 11-1 since 2023; 12 UFC fights at Flyweight; best wins Alexandre Pantoja (champion at Flyweight, 2025) and Brandon Royval (then-#1 at Flyweight, 2025); 8-fight win streak
How to read it. The bar under each name is the plausible strength range; the white tick is our best estimate, and we rank on the left end. A wide bar means thin evidence. provisional entries are ranked where the numbers put them, and the label says the evidence is thin. The arrows show how many places we rank him above (▲) or below (▼) each list; gold means a gap of 3 places or more against the UFC's official rank.
Why #1: 8-3 in the UFC, 5-1 since 2023; 11 UFC fights at Flyweight; best wins Brandon Royval (then-#2 at Flyweight, 2025) and Kyoji Horiguchi (then-#5 at Flyweight, 2026); 4-fight win streak
Best wins: Brandon Royval (then-#2 at Flyweight, 2025); Kyoji Horiguchi (then-#5 at Flyweight, 2026); Asu Almabayev (then-#8 at Flyweight, 2025)
Why #2: 14-5 in the UFC, 5-2 since 2023; 19 UFC fights at Flyweight; best wins Brandon Royval (then-#2 at Flyweight, 2023) and Kai Kara-France (then-#4 at Flyweight, 2025); lost last fight to Joshua Van
Best wins: Brandon Royval (then-#2 at Flyweight, 2023); Kai Kara-France (then-#4 at Flyweight, 2025); Steve Erceg (then-#10 at Flyweight, 2024)
Why #3: 8-2 in the UFC, 6-2 since 2023; 9 UFC fights at Flyweight; best wins Brandon Moreno (then-#2 at Flyweight, 2025) and Alex Perez (then-#5 at Flyweight, 2024); lost last fight to Joshua Van
Best wins: Brandon Moreno (then-#2 at Flyweight, 2025); Alex Perez (then-#5 at Flyweight, 2024)
Why #4: 7-1 in the UFC, 7-1 since 2023; 8 UFC fights at Flyweight; best wins Alex Perez (then-#7 at Flyweight, 2025) and Matheus Nicolau (then-#7 at Flyweight, 2024); 3-fight win streak
Where we differ from the UFC: We rank him 3 places higher than the UFC does (#7). Our data credits his best win, Alex Perez (then-#7 at Flyweight, 2025); he has 8 UFC fights at this weight.
Best wins: Alex Perez (then-#7 at Flyweight, 2025); Matheus Nicolau (then-#7 at Flyweight, 2024); Charles Johnson (then-#14 at Flyweight, 2026)
Why #5: 3-0 in the UFC, 3-0 since 2023; 3 UFC fights at Flyweight; best wins Steve Erceg (then-#10 at Flyweight, 2026) and Charles Johnson (then-#12 at Flyweight, 2025); 3-fight win streak
Provisional (thin evidence: the record is short or old, so the rating is uncertain).
Where we differ from the UFC: We rank him 5 places higher than the UFC does (#10). Our data credits his best win, Steve Erceg (then-#10 at Flyweight, 2026); he has 3 UFC fights at this weight.
Best wins: Steve Erceg (then-#10 at Flyweight, 2026); Charles Johnson (then-#12 at Flyweight, 2025)
Why #6: 8-5 in the UFC, 4-3 since 2023; 13 UFC fights at Flyweight; best wins Brandon Moreno (then-#1 at Flyweight, 2024) and Tatsuro Taira (then-#5 at Flyweight, 2024)
Where we differ from the UFC: We rank him 3 places lower than the UFC does (#3). His best win on our record is Brandon Moreno (then-#1 at Flyweight, 2024).
Best wins: Brandon Moreno (then-#1 at Flyweight, 2024); Tatsuro Taira (then-#5 at Flyweight, 2024); Lone'er Kavanagh (then-#6 at Flyweight, 2026)
Why #7: 3-2 in the UFC, 3-2 since 2023; 5 UFC fights at Flyweight; best wins Brandon Moreno (then-#6 at Flyweight, 2026); lost last fight to Brandon Royval
Best wins: Brandon Moreno (then-#6 at Flyweight, 2026)
Why #8: 12-7 in the UFC, 4-4 since 2023; 19 UFC fights at Flyweight; best wins Amir Albazi (then-#3 at Flyweight, 2024) and Steve Erceg (then-#8 at Flyweight, 2025)
Best wins: Amir Albazi (then-#3 at Flyweight, 2024); Steve Erceg (then-#8 at Flyweight, 2025)
Why #9: 9-2 in the UFC, 2-1 since 2023; 10 UFC fights at Flyweight; best wins Amir Albazi (then-#6 at Flyweight, 2026) and Tagir Ulanbekov (then-#11 at Flyweight, 2025); lost last fight to Manel Kape
Where we differ from the UFC: We rank him 4 places lower than the UFC does (#5). His best win on our record is Amir Albazi (then-#6 at Flyweight, 2026).
Best wins: Amir Albazi (then-#6 at Flyweight, 2026); Tagir Ulanbekov (then-#11 at Flyweight, 2025)
Why #10: 7-4 in the UFC, 4-2 since 2023; 8 UFC fights at Flyweight; best wins Alex Perez (then-#11 at Flyweight, 2026); 4-fight win streak
Where we differ from the UFC: We rank him 3 places higher than the UFC does (#13). Our data credits his best win, Alex Perez (then-#11 at Flyweight, 2026); he has 8 UFC fights at this weight.
Best wins: Alex Perez (then-#11 at Flyweight, 2026)
Why #11: 8-7 in the UFC, 2-4 since 2023; 13 UFC fights at Flyweight; best wins Matheus Nicolau (then-#5 at Flyweight, 2024) and Charles Johnson (then-#13 at Flyweight, 2026); lost last fight to Sumudaerji
Where we differ from the UFC: We rank him 4 places higher than the UFC does (#15). Our data credits his best win, Matheus Nicolau (then-#5 at Flyweight, 2024); he has 13 UFC fights at this weight.
Best wins: Matheus Nicolau (then-#5 at Flyweight, 2024); Charles Johnson (then-#13 at Flyweight, 2026)
Why #12: 9-7 in the UFC, 8-6 since 2023; 14 UFC fights at Flyweight; best wins Bruno Silva (then-#15 at Flyweight, 2026)
Best wins: Bruno Silva (then-#15 at Flyweight, 2026)
Why #13: 6-2 in the UFC, 3-1 since 2023; 8 UFC fights at Flyweight; best wins Cody Durden (then-#15 at Flyweight, 2023); lost last fight to Kyoji Horiguchi
Best wins: Cody Durden (then-#15 at Flyweight, 2023)
Why #14: 5-4 in the UFC, 5-4 since 2023; 8 UFC fights at Flyweight; best wins Matt Schnell (then-#9 at Flyweight, 2024) and Tim Elliott (then-#11 at Flyweight, 2026); lost last fight to Ramazan Temirov
Best wins: Matt Schnell (then-#9 at Flyweight, 2024); Tim Elliott (then-#11 at Flyweight, 2026)
Why #15: 11-12 in the UFC, 4-2 since 2023; 20 UFC fights at Flyweight; best wins Sumudaerji (then-#11 at Flyweight, 2023) and Kai Asakura (then-#15 at Flyweight, 2025)
Where we differ from the UFC: We rank him 4 places lower than the UFC does (#11). His best win on our record is Sumudaerji (then-#11 at Flyweight, 2023).
Best wins: Sumudaerji (then-#11 at Flyweight, 2023); Kai Asakura (then-#15 at Flyweight, 2025); Edgar Chairez (then-FightIQ #14 at Flyweight, 2026)
Official ranks: UFC official rankings. Meta ranks: Meta UFC Rankings, ufc.com.