Cristian Perez knocks out Kyle Nelson in 27 seconds in UFC debut

A somersaulting start

Cristian Perez began his first UFC appearance against Kyle Nelson with a somersaulting attempt to secure a leglock. The lightweight contest matched Nelson, who entered at 17-7-1, against Perez, who brought a 15-2 record into the bout, with Herzog serving as referee. The bout was part of UFC Fight Night 291 on October 17, 2026.

The main-card bout took place at Rogers Place in Edmonton, Alberta, Canada.

Perez had earned his UFC signing through Dana White’s Contender Series in August. His debut then included an early setback on the feet: after he returned upright from the opening attempt, Nelson connected with a right hand that knocked Perez off balance.

Perez answers with punches and a knee

Perez responded to that right hand by charging forward and throwing heavy punches at Nelson. The exchange moved from Nelson landing a shot that disrupted Perez’s balance to Perez delivering the combination that would put Nelson on his back.

Perez also mixed a knee into his punching offense during the attack. He landed a left hook against Nelson before delivering the finishing hammerfists, moving from his opening attempt to secure a leglock to a finish with punches in the same round.

Hammerfists complete the finish

With Nelson on his back after the combination, Perez followed with hammerfists to secure the stoppage. The victory moved Perez to 16-2, with 13 of his career wins coming by knockout or submission. Nelson fell to 17-8-1, taking his second consecutive KO/TKO defeat and third stoppage loss in four fights.

The official result was a knockout victory for Perez from punches at 0:27 of the first round.