Erin Blanchfield has become one of the leading fighters in the UFC women’s flyweight division after her unanimous decision win over former UFC Women’s Strawweight Champion Rose Namajunas in November 2024. Now preparing to face Maycee Barber in a major 125-pound bout set for UFC Vegas 107 on May 31, 2025, Erin’s personal ties to the sport through her family have attracted renewed attention, especially her connection with her brother, Brendan Blanchfield.
Brendan Blanchfield’s MMA Beginnings and Family Support
Brendan Blanchfield, Erin’s only sibling, has also ventured into MMA with an amateur record of one win and one loss. Both siblings attended Montclair State University, which supported Erin’s rise in MMA and highlighted the important role their parents, George and Betsy Blanchfield, have played in fostering their careers. Brendan’s debut fight was a unanimous decision victory over Christian Carlo in August 2021. He fought once more, experiencing a knockout loss to Jalin Burnett in March 2022, both events hosted by Dead Serious MMA.
A Milestone in Martial Arts and Lifelong Partnership
In May 2024, Erin celebrated a significant achievement of Brendan’s by sharing a photo on Instagram that showed the siblings training together, where she praised him for earning his Jiu-Jitsu black belt. She wrote,
“Jiu jitsu black belt for @brendan_blanchfield !! Blessed to have you as a training partner for life. Congrats & love you !!”
—Erin Blanchfield
Academic Achievements and Future Aspirations
In January 2025, Erin posted again to congratulate Brendan on becoming the first college graduate in their family. The photo depicted the siblings side by side, with Erin stating,
“First college graduate of the family. Proud of you!! @brendan_blanchfield”
—Erin Blanchfield
Brendan graduated with a Bachelor of Arts degree in Justice Studies from Montclair State University in Montclair, New Jersey. According to his LinkedIn profile, he resides in Elmwood Park, New Jersey, and works as a Jiu-Jitsu coach at MK Muay Thai Fitness, while planning a career in the justice field.
The Impact of Their Relationship on Their Careers
The strong bond between Erin and Brendan Blanchfield extends beyond their family ties into their professional lives as fighters and trainers. Their shared commitment to martial arts and mutual support during training fosters both personal growth and athletic excellence. As Erin continues to rise in the UFC ranks, Brendan’s coaching and achievements contribute to a unique partnership that benefits their futures, underscoring the significance of family in the demanding world of MMA.