Melquizael Costa has announced he is moving up to lightweight, citing an inability to continue cutting 22 kilograms for each fight. The Brazilian had previously competed at 155 pounds before his UFC debut and went on a six-fight winning streak at featherweight. He had climbed to the edge of the featherweight top ten before making the decision to change divisions.
Melquizael "Melk Cauthy" Costa has announced he is leaving the featherweight division behind and returning to lightweight, ending a stint at 145 pounds that saw him reel off six consecutive victories in the UFC.
The 29-year-old Brazilian, who trains out of Chute Boxe Joao Emilio, cited the physical toll of cutting 22 kilograms ahead of each contest as the driving force behind the move. Costa had competed at lightweight prior to his UFC debut before dropping to featherweight, where he built an impressive winning streak that pushed him to the fringe of the divisional top ten. He carries a professional record of 26 wins and 8 losses, and his numbers inside the octagon tell the story of an active, aggressive striker. He lands 4.29 significant strikes per minute at a 47 percent accuracy rate, while also contributing on the mat with 1.53 takedowns per 15 minutes and 0.8 submission attempts in the same window. Standing 178 centimeters tall with a 180-centimeter reach and fighting out of a southpaw stance, Costa brings a well-rounded profile to the 155-pound weight class.

Why it matters
- Costa arrives at lightweight with momentum, having climbed six fights deep into the featherweight rankings before making the switch.
- His striking output and grappling activity give him tools to compete across a wide range of stylistic matchups at the heavier weight.
- The lightweight division gains a proven UFC-level performer who has already demonstrated he belongs near the top-fifteen conversation.
- Costa will no longer be managing the physical strain of a severe weight cut, which could translate to improved performance on fight night.
















