to May 13, 2020, at UFC Fight Night: Smith vs. Teixeira facing Drew Dober instead. He lost the fight via technical knockout in round two. Hernández faced Chris Gruetzemacher on October 31, 2020, at UFC Fight Night 181. He won the fight via knockout in the first round. This win earned him Performance Fight of the Night award. Hernández faced Thiago Moisés on February 27, 2021, at UFC Fight Night 186. He lost the fight via unanimous decision. Hernández was scheduled to face Leonardo Santos on October 2, 2021, at UFC Fight Night 193. However, Santos was forced to pull from the event, citing calf injury and he was replaced by Mike Breeden. At the weigh-ins, Mike Breeden weighed in at 158.5 pounds, two and a half pounds over the lightweight non-title fight limit. The bout proceeded at catchweight and Breeden was fined 20% which went to Hernandez. Hernandez won the fight via knockout in round one. Hernández faced Renato Moicano on February 12, 2022, at UFC 271. He lost the bout via rear-naked choke in the second round. Hernandez faced Billy Quarantillo on December 10, 2022 at UFC 282. He lost the fight via technical knockout in round two. Hernandez faced Jim Miller, replacing Gabriel Benítez on February 18, 2023, at UFC Fight Night 219. He won the fight via unanimous decision. Championships and accomplishments Mixed martial arts Ultimate Fighting Championship Performance of the Night (Two time) Fight of the Night (One time) vs. Donald Cerrone Hero Fighting Championship Hero FC Lightweight Champion (One time) MMADNA.nl 2018 UFC Debut of the Year. Mixed martial arts record |- |Win |align=center|14–6 |Jim Miller |Decision (unanimous) |UFC Fight Night: Andrade vs. Blanchfield | |align=center|3 |align=center|5:00 |Las Vegas, Nevada, United States | |- |Loss |align=center|13–6 |Billy Quarantillo |TKO (knees and punches) |UFC 282 | |align=center|2 |align=center|4:30 |Las Vegas, Nevada, United States | |- |Loss |align=center|13–5 |Renato Moicano |Submission (rear-naked choke) |UFC 271 | |align=center|2 |align=center|1:23 |Houston, Texas, United States | |- |Win |align=center|13–4 |Mike Breeden |KO (punch) |UFC Fight Night: Santos vs. Walker | |align=center|1 |align=center|1:20 |Las Vegas, Nevada, United States | |- |Loss |align=center|12–4 |Thiago Moisés |Decision (unanimous) |UFC Fight Night: Rozenstruik vs. Gane | |align=center|3 |align=center|5:00 |Las Vegas, Nevada, United States | |- |Win |align=center|12–3 |Chris Gruetzemacher |KO (punches) |UFC Fight Night: Hall vs. Silva | |align=center|1 |align=center|1:46 |Las Vegas, Nevada, United States | |- |Loss |align=center|11–3 |Drew Dober |TKO (punches)