Sergio Sierra

Disciplines: Muay Thai
Sergio Sierra - Photo 1

Personal Info

Age

27

Date of Birth

June 21, 1998

Hometown

Glastonbury, CT

Experience and Credentials

Years of Experience

I've been training Muay Thai for 15 years now. I started when I was 12 years old.

Record

6 fights in total with tournaments and smokers

Current Rank

Amateur

Titles & Achievements
  • 3 WKA national tournaments
  • 1 WBC tournament in Thailand
  • A few smokers

Bio

I was always a big kid growing up, and I grew up around the karate scene. But, I had stopped doing karate because it wasn't for me. One day, my father took me to a Muay Thai class for the first time. I fell in love with the sport that day. Growing up, I hadn't taken the sport seriously, but around 2018/2019 I decided to take it a bit more seriously. I had once weighed 309 pounds. Today I am proud to say that I am 172 pounds and still on my way down. I started training here at Campanella Martial Arts in May of 2025. I have lost 30 pounds and I am continuing to do lose weight. I love it here! Everyone is supportive, people really just help each other grow. You can just feel it everywhere in the gym. Coach Mike has made me feel like I've made a lot of progress in my training from where I was, and for that I am thankful.

Social Media