Jan Błachowicz Siblings: All About Wojciech Błachowicz
Jan Błachowicz PHOTO/Sky Sports
Jan Maciej Błachowicz, born on February 24, 1983, in Cieszyn, Poland, is a renowned Polish professional mixed martial artist who competes in the Light Heavyweight division of the Ultimate Fighting Championship.
From a young age, Błachowicz was drawn to martial arts, beginning with judo at nine years old, inspired by action films, before expanding into grappling and Muay Thai, where he achieved notable success in amateur competitions.
He transitioned to professional MMA in 2007 and has built a career marked by resilience and striking power.
On a personal note, Błachowicz is the son of Stanisław Błachowicz and Krystyna Błachowicz, and he shares a close bond with fellow fighter Tomasz Drwal.
Siblings
Jan has one sibling, his older brother Wojciech Błachowicz, who has spoken publicly about Jan’s early challenges in pursuing a career in MMA during a time when the sport was virtually nonexistent in Poland and offered little financial promise.
Growing up together, the brothers shared a modest background that shaped Jan’s determination, with Wojciech recalling the improbability of making a living from fighting in their homeland.
Career
Błachowicz’s professional MMA journey began in 2007, primarily in Europe, where he quickly made a name for himself in the Konfrontacja Sztuk Walki organization by winning the inaugural KSW Light Heavyweight Tournament at KSW 9 in 2008 through a series of victories including a unanimous decision over Martin Zawada, an armbar submission against Antoni Chmielewski, and securing the crown.
He repeated this success by claiming the 2008 and 2010 KSW Light Heavyweight Tournaments and became the KSW Light Heavyweight Champion in 2011 with a unanimous decision rematch win over Rameau Thierry Sokoudjou, defending the title twice against Houston Alexander and Goran Reljic.
Entering the UFC in 2014 with a 17-3 record, Błachowicz debuted with a TKO victory over Ilir Latifi but faced early setbacks, including losses to Jimi Manuwa, Corey Anderson, Alexander Gustafsson, Patrick Cummins, and Thiago Santos, starting his UFC tenure at 2-4.
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Turning his career around, he embarked on a dominant run from 2017, securing wins such as a rear-naked choke submission over Devin Clark, an arm-triangle choke against Nikita Krylov, a knockout of Luke Rockhold, a split decision over Ronaldo Souza, and a first-round knockout rematch against Corey Anderson.
This streak culminated in capturing the vacant UFC Light Heavyweight Championship with a second-round TKO over Dominick Reyes at UFC 253 in 2020, followed by a successful title defense via unanimous decision against Israel Adesanya at UFC 259 in 2021, marking Adesanya’s first UFC loss.
Błachowicz lost the belt via rear-naked choke submission to Glover Teixeira at UFC 267 in 2021, but continued competing with a TKO win over Aleksandar Rakić in 2022, a split draw against Magomed Ankalaev for the vacant title at UFC 282 in 2022, a split decision loss to Alex Pereira at UFC 291 in 2023, a unanimous decision loss to Carlos Ulberg at UFC Fight Night 255 in 2025, and a majority draw with Bogdan Guskov at UFC 323 in 2025.
As of late 2025, he holds a professional record of 29 wins, 11 losses, and 2 draws, ranking fifth in the UFC light heavyweight division.
Accolade
In the UFC, Błachowicz held the Light Heavyweight Championship from 2020 to 2021 with one successful defense, becoming the first male Polish UFC champion and the second Polish titleholder overall after Joanna Jędrzejczyk.
He earned Performance of the Night bonuses five times for victories over Devin Clark, Nikita Krylov, Luke Rockhold, Corey Anderson, and Dominick Reyes, along with one Fight of the Night award against Jimi Manuwa.
Błachowicz ties for sixth in UFC light heavyweight history with six performance bonuses, ranks seventh in divisional wins with 12, and holds records for second-most significant strikes landed at 1037, third-most total strikes landed at 1466, and most decision bouts at 13.
Prior to the UFC, he was the KSW Light Heavyweight Champion with two defenses and won the KSW Light Heavyweight Tournaments in 2007, 2008, and 2010, earning three KSW Fight of the Night honors.
In Muay Thai, representing Poland, he secured gold at the 2008 IFMA World Championships (-91 kg, B class) and European Open Cup (91 kg, A class), bronze at the 2007 IFMA World Championships (-91 kg, B class), gold at the 2007 Polish Championships (over 91 kg), and bronze at the 2006 Polish Cup (91 kg).
His grappling achievements include first place in the 2007 Polish BJJ League (98 kg) and Polish BJJ Cup (97 kg), second in the 2007 Polish Open Submission Fighting Championships (99 kg), and third in the 2005 Polish BJJ Championships (open).
Additionally, Błachowicz received the Herakles Award as the 2022 Polish Fighter of the Year, was named MMA Fighter of the Year by Yahoo! Sports in 2020, ranked as the #2 UFC Fighter of 2020 by UFC.com, and earned the 2018 Technical Turn-Around of the Year from the Slacky Awards.