was eventually postponed. Instead, Stamann faced Brian Kelleher on June 6, 2020, at UFC 250 in a featherweight bout. He won the bout via unanimous decision. Stamann faced Jimmie Rivera in a featherweight bout on July 16, 2020, at UFC on ESPN: Kattar vs. Ige. He lost the fight via unanimous decision. Stamann was expected to face Merab Dvalishvili on December 5, 2020, at UFC on ESPN 19. However, on October 22, it was announced that Stamann had pulled out due to undisclosed reasons. The bout between Dvalishvili and Stamann was rescheduled for UFC Fight Night 184 on February 6, 2021. In turn, in mid January, Dvalishvili was forced to pull out from the bout due to the struggle of the after-effects of a COVID-19 complication, and he was replaced by Andre Ewell. After a positive test for COVID, Ewell was pulled from the event and replaced with UFC newcomer Askar Askarov, with the contest expected to take place at featherweight. On the day of the event, Askar was not medically cleared and the bout was cancelled. The bout between Dvalishvili and Stamann was re-scheduled again to May 1, 2021, at UFC on ESPN: Reyes vs. Procházka. Stamann lost the bout via unanimous decision. Stamann faced Said Nurmagomedov on January 22, 2022, at UFC 270. Stamann lost the fight via submission in the first round. Stamann faced Eddie Wineland on June 18, 2022, at UFC on ESPN 37. He won the fight via TKO less than a minute into round one. This win earned him the Performance of the Night award. Stamann faced Luan Luiz Lacerda on January 21, 2023, at UFC 283. He won the fight via unanimous decision. Championships and accomplishments Ultimate Fighting Championship Performance of the Night (One time) Personal life Stamann has two monikers. His moniker "Spartan" was coined after the name of his hometown, and "Mr. Wonderful" was given by his coach. Stamann worked part-time in his family business prior to his first win in UFC. Stamann enjoys fishing. On May 27, 2020, it was reported that Stamann's 18-year-old brother Jacob had passed away. Mixed martial arts record |- |Win |align=center|21–5–1 |Luan Lacerda |Decision (unanimous) |UFC 283 | |align=center|3 |align=center|5:00 |Rio de Janeiro, Brazil | |- |Win |align=center|20–5–1 |Eddie Wineland |TKO (punches) |UFC on ESPN: Kattar vs. Emmett | |align=center|1 |align=center|0:59 |Austin, Texas, United States | |- |Loss |align=center|19–5–1 |Said Nurmagomedov |Submission (guillotine choke) |UFC