
Greek-American MMA fighter builds a championship career through discipline, determination, submission skills, and a commitment to his community.
In mixed martial arts, reaching the national stage requires more than physical talent. It demands years of sacrifice, countless hours of training, and the determination to overcome setbacks. For Valanti “300” Atsas, that journey has taken him from the football fields of northwest Indiana to the bright lights of the Professional Fighters League (PFL).
The 35-year-old Greek-American fighter has established himself as a dangerous welterweight prospect, compiling an impressive 10–1 professional MMA record, including five submission victories.
Representing Maxim Gym in Hobart, Indiana, Atsas has developed a reputation as a skilled grappler, capable striker, and determined competitor.
His successful PFL debut in April 2026 marked another important chapter in a career built on persistence, family values, and a passion for martial arts.
Valanti Atsas was raised in Merrillville, Indiana, in a Greek-American family that owned and operated a restaurant in nearby Michigan City.
Growing up around a family business provided an early introduction to the importance of responsibility, discipline, and hard work.
Athletics also became an important part of his life.
Before entering mixed martial arts, Atsas played football at Merrillville High School, developing competitive habits and physical conditioning that would later benefit him inside the cage.
Following high school, he attended the College of DuPage before transferring to Valparaiso University.
In 2017, Atsas earned his bachelor’s degree in history, demonstrating his commitment to education while exploring his future athletic opportunities.
His background reflects a combination of academic achievement, athletic ambition, and strong family connections.
Atsas began his martial arts journey in 2012 when he started training at Maxim Gym in Hobart, Indiana.
Under the guidance of head instructor Armando Reyna, Atsas began developing the skills necessary to compete in multiple combat sports.
Reyna, a Carlson Gracie Brazilian jiu-jitsu black belt, established Maxim Gym in 2011 and brought experience in Brazilian jiu-jitsu, karate, kickboxing, and Muay Thai.
For Atsas, learning different martial arts became essential to his development.
Brazilian jiu-jitsu provided a foundation in submissions, positional control, and ground fighting. Kickboxing and Muay Thai strengthened his striking skills, while MMA training taught him to combine those disciplines.
Over time, Atsas progressed from student to accomplished competitor and eventually became a kickboxing instructor at the same gym where his journey began.
Before turning professional, Atsas established himself as a successful amateur fighter.
According to Maxim Gym’s official coaching biography, his accomplishments included:
These championships demonstrated his versatility across different fighting disciplines.
His amateur career also provided valuable experience against opponents with different approaches to competition.
However, his journey was not without interruptions.
The COVID-19 pandemic disrupted competitive opportunities, forcing Atsas to adjust his training and career plans.
During that period, he relocated to Chicago for work and continued developing his skills at Carlson Gracie Headquarters.
Rather than allowing the interruption to end his competitive ambitions, Atsas remained committed to improving.
Atsas officially began his professional MMA career on June 4, 2022, defeating Derek Clardy by unanimous decision.
He followed that victory with another decision win over Sherman Lovely in March 2023.
As his professional career progressed, his submission abilities became increasingly important.
In July 2023, Atsas defeated Nathan Mitchell by first-round rear-naked choke.
He followed that performance with another first-round submission victory over Seijo Imazaki in November.
The winning streak continued into 2024.
Atsas submitted Aaron Smith in the opening round of their March encounter before defeating John Quezada by second-round TKO in May.
The victory over Quezada at Eleven Fighting Championship helped strengthen his reputation in the regional MMA scene.
He also captured professional welterweight championships with Elite Fight Night and Eleven Fighting Championship.
By the end of 2024, Atsas had established himself as an unbeaten professional with an increasingly impressive résumé.
Every fighter eventually faces adversity, and Atsas encountered his biggest professional setback on February 22, 2025.
Facing Angelo Rivera Jr. at Elite Fight Night 26, Atsas suffered his first professional loss when Rivera secured a second-round TKO.
The defeat ended his undefeated run, but it did not derail his career.
On June 14, 2025, Atsas returned against Tyler Scott and earned a split-decision victory following five competitive rounds.
He continued his resurgence on November 7, defeating Irvin Jones by arm-triangle choke just 1 minute and 39 seconds into the opening round.
Those victories returned Atsas to the winning column and helped position him for an opportunity with a major national promotion.
The biggest opportunity of Atsas’ professional career arrived on April 11, 2026, when he competed at PFL Chicago: Pettis vs. McKee at Wintrust Arena.
Standing across from him was experienced competitor Nate Jennerman.
Atsas entered the contest with a 9–1 professional record, while Jennerman brought considerably more professional fight experience.
The matchup represented an opportunity for Atsas to demonstrate that his success on the regional circuit could translate to a larger stage.
He delivered.
During the three-round welterweight contest, Atsas combined effective striking with grappling control.
According to the PFL’s official statistics, Atsas landed 91 significant strikes compared with Jennerman’s 50. He also recorded a knockdown and accumulated more than six minutes of control time.
Although Jennerman mounted a challenge in the final round, Atsas did enough to secure the victory.
All three judges scored the fight 29–28 in his favor.
The unanimous-decision win improved his professional record to 10–1 and provided an important milestone in his pursuit of greater opportunities.
One of Atsas’ greatest strengths is his ability to finish fights on the ground.
Of his ten professional victories, five have come by submission, four by decision, and one by knockout or technical knockout.
His submission victories include four rear-naked chokes and one arm-triangle choke.
These results demonstrate his effectiveness at controlling opponents, creating openings, and recognizing opportunities to finish fights.
However, Atsas is more than a grappling specialist.
His extensive kickboxing and Muay Thai experience makes him comfortable competing on his feet.
His victory over Jennerman also demonstrated his ability to combine striking, wrestling, and positional control throughout a full three-round contest.
That versatility could become increasingly important as he faces more experienced opposition.
Outside professional competition, Atsas continues to contribute to the martial arts community through his work at Maxim Gym.
As a kickboxing instructor, he helps students develop striking fundamentals, conditioning, coordination, and confidence.
The gym emphasizes martial arts as a way to improve physical fitness and personal development for participants of different ages and experience levels.
For Atsas, coaching provides an opportunity to share the knowledge he has gained during more than a decade of training.
His involvement also highlights the importance of regional gyms in developing future generations of fighters.
Atsas is scheduled to return to competition on November 6, 2026, at Elite Fight Night 31: Combat for a Cause.
The event takes place at Hard Rock Casino Northern Indiana in Gary.
His scheduled opponent is veteran welterweight Jesse “JT Money” Taylor, whose professional record stands at 33–18.
Taylor brings extensive experience and is best known for winning The Ultimate Fighter 25: Redemption in 2017.
The scheduled welterweight championship main event presents an intriguing matchup between an accomplished regional champion building national momentum and a veteran who has competed against numerous experienced opponents.
For Atsas, defeating Taylor would represent another important achievement following his PFL breakthrough.
It would also provide another indication of his readiness for increasingly demanding competition.
Valanti “300” Atsas represents the determination required to succeed in professional mixed martial arts.
From his upbringing in a hardworking Greek-American family to his days playing football at Merrillville High School, his journey has been shaped by discipline and perseverance.
His accomplishments include multiple amateur championships, regional professional titles, and a successful debut with the Professional Fighters League.
His first professional defeat could have slowed his progress, but his response demonstrated his ability to regroup and continue winning.
Now holding a 10–1 record, Atsas has positioned himself as a fighter worth watching in the welterweight division.
As he prepares for another major challenge against Jesse Taylor, his ambitions extend beyond regional success.
For Atsas, the opportunity to represent his gym, family, and community while continuing to climb the professional MMA ladder remains central to his story.
His journey from northwest Indiana to the national MMA stage demonstrates that hard work, resilience, and commitment can create opportunities—and his next chapter may be his most important yet.

21+ and present in OH. Gambling Problem? Call 1-800-GAMBLER.