History of Kevin Vallejos in Timeline

By Popular Timelines Editorial Team · Updated: March 14, 2026

Kevin Vallejos is an Argentine professional mixed martial artist. He competes in the featherweight division of the Ultimate Fighting Championship (UFC). As of March 3, 2026, he holds the #14 ranking in the UFC featherweight division.

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Full Timeline

December 8, 2001: Kevin Vallejos' Birth

On December 8, 2001, Kevin Axel Vallejos Montenegro was born. He is an Argentine mixed martial artist.

Others born on this day/year

September 2021: Professional MMA Debut

In September 2021, Kevin Vallejos made his professional mixed martial arts debut, defeating Rocco Cena by technical knockout at Supreme Warrior 6.

September 6, 2023: Dana White's Contender Series Loss

On September 6, 2023, Kevin Vallejos competed for a UFC contract on Dana White's Contender Series: Season 7, Week 5, but lost a unanimous decision to Jean Silva, marking his first career loss.

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September 24, 2024: Dana White's Contender Series Win and UFC Contract

On September 24, 2024, Kevin Vallejos won his fight against Cam Teague via first-round knockout during Week 7 of Season 8 of Dana White's Contender Series and was awarded a UFC contract.

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March 15, 2025: UFC Debut Win

On March 15, 2025, Kevin Vallejos made his UFC debut at UFC Fight Night 254, where he defeated Seung Woo Choi by first-round technical knockout.

August 2, 2025: UFC on ESPN 71 Victory

On August 2, 2025, Kevin Vallejos won against Danny Silva by unanimous decision at UFC on ESPN 71.

December 13, 2025: Knockout Victory Over Giga Chikadze

On December 13, 2025, Kevin Vallejos achieved a knockout victory over Giga Chikadze in the second round with a spinning backfist at UFC on ESPN 73, earning him a Performance of the Night award.