Sports • Mixed Martial Arts

Michael Chiesa

Michael Chiesa is an American mixed martial artist who competed in the UFC, primarily in the welterweight division.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Michael Chiesa is an American mixed martial artist who competed in the UFC, primarily in the welterweight division. He is known by the nickname "Maverick" and won The Ultimate Fighter 15 tournament in 2012. Chiesa is a southpaw fighter who trained with Sikjitsu.

Early life and background

Michael Keith Chiesa was born on December 7, 1987, in Aurora, Colorado. Public fighter profiles identify him as an American athlete who later trained out of Sikjitsu.

Mixed martial arts career

Chiesa competed in the UFC after winning The Ultimate Fighter 15. He fought across lightweight and welterweight divisions and became known for his grappling and submission wins.

The Ultimate Fighter 15

Chiesa won The Ultimate Fighter 15 by defeating Al Iaquinta in the finale on June 1, 2012. The result made him the season’s inaugural winner and earned him Submission of the Night honors.

Fighting style and record

UFC and MMA profile sources describe Chiesa as a southpaw with a strong submission game. Later sources credit him with multiple submission victories and a professional record that was updated after later UFC bouts.

Key facts

Won The Ultimate Fighter 15 in 2012 after defeating Al Iaquinta in the finale.
Competed in the UFC at lightweight and welterweight, with welterweight listed as his primary division in recent profiles.
His fighting style has been noted for submission grappling, with many of his wins coming by submission.
ESPN lists his professional record as 20-7-0, while later MMA sources list updated records that include subsequent fights.
His UFC career included wins over established opponents such as Tony Ferguson, Neil Magny, Rafael dos Anjos, Diego Sanchez, Jim Miller, Carlos Condit, and Beneil Dariush.

🍁

Canadian context

Michael Chiesa has relevance for Canadian MMA readers as a long-time UFC welterweight whose fights were part of the North American mixed martial arts scene, though he has no major Canada-specific public role in the sources provided.

Frequently asked questions

Who is Michael Chiesa?

Michael Chiesa is an American mixed martial artist best known for competing in the UFC and winning The Ultimate Fighter 15 in 2012.

What is Michael Chiesa’s nickname?

His nickname is "Maverick."

What weight class does Michael Chiesa fight in?

He is primarily listed as a welterweight, though he earlier competed at lightweight in the UFC.

What is Michael Chiesa’s fighting style?

He is a southpaw with a grappling-heavy style and many of his wins have come by submission.

Did Michael Chiesa win The Ultimate Fighter?

Yes. He won The Ultimate Fighter 15 by submitting Al Iaquinta in the finale.

Is Michael Chiesa retired?

A March 2026 ESPN profile said he expected the Niko Price bout to be the final fight of his career.

References

ESPN — https://www.espn.com/mma/fighter/_/id/2960681/michael-chiesa
Supports: Birthdate, nationality, weight class, height/weight, nickname, stance, team, and record snapshot.
Wikipedia — https://en.wikipedia.org/wiki/Michael_Chiesa
Supports: TUF 15 finale result, UFC debut, and career background details.
Fight Matrix — https://www.fightmatrix.com/fighter-profile/Michael%20Chiesa/46276/
Supports: Birth date, pro debut, UFC record, ranking, and recent fight-history context.
UFC — https://www.ufc.com/athlete/michael-chiesa
Supports: Team Faber on TUF 15, amateur record, submission totals, and professional titles.
RotoWire — https://www.rotowire.com/mma/player/michael-chiesa-254
Supports: Updated record, last fight details, and notable UFC wins.
ESPN — https://www.espn.com/mma/story/_/id/48303322/ending-career-ufc-fight-no-22-serendipitous-veteran-michael-chiesa
Supports: March 2026 retirement context, three-fight win streak, and final-fight remarks.