Kelley Jersie
Owner & Head Coachhttps://www.stlboxingacademy.com
National Champion Coach & CoFounder of STL Boxing Academy.
Coach Kelley is more than just a coach, she’s a proven winner and the powerhouse behind STL Boxing Academy. A National Champion coach with experience cornering both elite amateur and professional fighters, she brings unmatched knowledge and energy to every session.
From beginners to seasoned fighters, Coach Kelley trains clients of all levels in boxing, MMA, and fitness. Her female-friendly, technique-focused approach makes learning the sweet science both safe and empowering, for women and for men who want to sharpen their form and fundamentals the right way.
Coach Kelley also helps clients crush their weight and fitness goals through RedZone cardio and strength & conditioning classes. Whether you want to fight, get fit, or feel your best, Coach Kelley’s proven programs and championship mindset will push you to the next level.
Licensed by USA Boxing. Trusted by champions. Ready to train with the best? Book your sessions today.
$99/MONTH GYM MEMBERSHIPS
Payment is due at time of booking. Canceling/Rescheduling 24hrs or less will result in the forfeit of your payment. Showing up 15+ mins will void your session. No refunds are given once booked.
🥊STL ONLY 24/7 BOXING GYM🥊
$99/MONTH GYM MEMBERSHIPS
Payment is due at time of booking. Canceling/Rescheduling 24hrs or less will result in the forfeit of your payment. Showing up 15+ mins will void your session. No refunds are given once booked.
10-week strength and conditioning program is the essential program for boxing and combat sports.
Whether you’re a recreational, amateur or professional athlete, this program is suitable for anybody looking to better yourself physically, lose weight, and punch harder.
IMPROVE PHYSICAL PERFORMANCE BY 10-20% IN JUST 10 WEEKS
This program is guaranteed to help improve strength, movement, speed and explosiveness.
The program consist of 10-weeks of challenging strength training, designed specifically to improve physical performance for Boxing.
Strength training to improve movement and strength
Exercises to improve core stability, strength and speed
Plyometrics to improve speed and explosiveness
Mobility exercises to reduce tightness, soreness and the likelihood of injury
Using OVR Performance technology, we measure key athletic markers including jump height, reactive strength, foot speed, sprint performance, and bar speed. Your results show us where you are strong, where you are losing performance, and exactly what needs to improve.
Your training session is then custom built around YOUR numbers, YOUR sport, and YOUR goals.
No two athletes receive the exact same workout.
Athletes must complete the Elite Athlete Intake Form before their first session so their program can be prepared before they arrive.
For the best results, we recommend completing Elite Athlete Performance Training at least twice per week along with weekly or biweekly OVR testing, for a minimum of 8 weeks for best results.
Fill out the form below. The form only needs to be filled out once. You can text us for the form link as well.
https://form.jotform.com/262758119459066
OVR Athlete Performance Test Day is our official weekly athlete testing session.
You will complete your OVR Performance testing so we can track measurable areas including explosive power, reactive strength, speed, footwork, and overall athletic performance.
After testing, you will receive custom homework based on YOUR results so you know exactly what to work on between sessions to improve your numbers.
Every Sunday, we post the updated STL Boxing Academy Athlete Leaderboard so athletes can see where they rank and track their progress week after week.
Athletes must have the OVR Performance app downloaded, their account created, and their athlete profile completed before attending.
No app. No test.
For maximum improvement, pair weekly testing with a minimum of two Elite Athlete Performance Sessions per week. Testing is still available to athletes who train less frequently.
Push your limits with our high intensity cardio circuit designed to build the endurance, power, and mental toughness of a fighter.
Using heavy bags and a variety of gym equipment, you'll rotate through fast paced stations that challenge your conditioning, improve stamina, and increase overall athletic performance. Whether you're preparing for a fight or simply want the conditioning of a boxer, this class will push you to the next level.
Perfect for:
Anyone looking to improve cardio and endurance
Amateur and professional fighters
Members who want to burn calories and boost conditioning
Anyone who wants the stamina, grit, and work ethic of a fighter
No experience is required. Just bring your effort and be ready to work.
Ready to kick, punch, and have a blast? Join us for “Girls Just Want to Have Fun,” a day of fun and martial arts sparring for women of all levels. Whether you have been in the ring before, or just starting out, everyone is invited to join. The focus will be on learning and having fun! We’re thrilled to have you 👊🏻
Coaches:
-Kelley Jersie: Boxing coach and owner of STL Boxing Academy. Kelley is a National Champion coach and has quite a few female students! She is excited to share her expertise with us.
-Liz Helton: Kickboxing coach and multi-time National Champion, Pan American Gold, and World Champion Medalist. Liz brings a wealth of experience and a passion for teaching.
How to Reserve Your Spot:
DM Lillie, Liz, Or Coach Kelley to let us know you want to come!
Commitment Required: 🙏🏻 Once RSVP confirmed, Please make sure you can honor your spot. Space is limited so we don't want anyone missing out. If you can't make this one, there will be more!
What to Bring:
-Appropriate martial arts gear (16oz gloves, mouthguard, shins, knee pads)
-Water bottle to stay hydrated
-A positive attitude and a willingness to learn!
Connect with other females in the sport, share tips, and make new friends who share your passion for martial arts!! Please send Lillie or Liz a message directly with any questions.
Push your limits with our high intensity cardio circuit designed to build the endurance, power, and mental toughness of a fighter.
Using heavy bags and a variety of gym equipment, you'll rotate through fast paced stations that challenge your conditioning, improve stamina, and increase overall athletic performance. Whether you're preparing for a fight or simply want the conditioning of a boxer, this class will push you to the next level.
Perfect for:
Anyone looking to improve cardio and endurance
Amateur and professional fighters
Members who want to burn calories and boost conditioning
Anyone who wants the stamina, grit, and work ethic of a fighter
No experience is required. Just bring your effort and be ready to work.
Ready to kick, punch, and have a blast? Join us for “Girls Just Want to Have Fun,” a day of fun and martial arts sparring for women of all levels. Whether you have been in the ring before, or just starting out, everyone is invited to join. The focus will be on learning and having fun! We’re thrilled to have you 👊🏻
Coaches:
-Kelley Jersie: Boxing coach and owner of STL Boxing Academy. Kelley is a National Champion coach and has quite a few female students! She is excited to share her expertise with us.
-Liz Helton: Kickboxing coach and multi-time National Champion, Pan American Gold, and World Champion Medalist. Liz brings a wealth of experience and a passion for teaching.
How to Reserve Your Spot:
DM Lillie, Liz, Or Coach Kelley to let us know you want to come!
Commitment Required: 🙏🏻 Once RSVP confirmed, Please make sure you can honor your spot. Space is limited so we don't want anyone missing out. If you can't make this one, there will be more!
What to Bring:
-Appropriate martial arts gear (16oz gloves, mouthguard, shins, knee pads)
-Water bottle to stay hydrated
-A positive attitude and a willingness to learn!
Connect with other females in the sport, share tips, and make new friends who share your passion for martial arts!! Please send Lillie or Liz a message directly with any questions.
Push your limits with our high intensity cardio circuit designed to build the endurance, power, and mental toughness of a fighter.
Using heavy bags and a variety of gym equipment, you'll rotate through fast paced stations that challenge your conditioning, improve stamina, and increase overall athletic performance. Whether you're preparing for a fight or simply want the conditioning of a boxer, this class will push you to the next level.
Perfect for:
Anyone looking to improve cardio and endurance
Amateur and professional fighters
Members who want to burn calories and boost conditioning
Anyone who wants the stamina, grit, and work ethic of a fighter
No experience is required. Just bring your effort and be ready to work.
The emphasis is on learning, making adjustments, and building confidence through quality repetitions rather than power or aggression.
Great to pair with our Technical Drill Class so you can immediately apply the skills you just learned in a live setting.
Perfect for:
Amateur and competitive fighters
Intermediate boxers looking to improve ring IQ
Members preparing for sparring or competition
Anyone ready to bridge the gap between drills and live boxing.
Required: 16 oz gloves, headgear, mouthpiece, and groin protector (for males). All sparring is supervised by our coaching staff.
Ready to kick, punch, and have a blast? Join us for “Girls Just Want to Have Fun,” a day of fun and martial arts sparring for women of all levels. Whether you have been in the ring before, or just starting out, everyone is invited to join. The focus will be on learning and having fun! We’re thrilled to have you 👊🏻
Coaches:
-Kelley Jersie: Boxing coach and owner of STL Boxing Academy. Kelley is a National Champion coach and has quite a few female students! She is excited to share her expertise with us.
-Liz Helton: Kickboxing coach and multi-time National Champion, Pan American Gold, and World Champion Medalist. Liz brings a wealth of experience and a passion for teaching.
How to Reserve Your Spot:
DM Lillie, Liz, Or Coach Kelley to let us know you want to come!
Commitment Required: 🙏🏻 Once RSVP confirmed, Please make sure you can honor your spot. Space is limited so we don't want anyone missing out. If you can't make this one, there will be more!
What to Bring:
-Appropriate martial arts gear (16oz gloves, mouthguard, shins, knee pads)
-Water bottle to stay hydrated
-A positive attitude and a willingness to learn!
Connect with other females in the sport, share tips, and make new friends who share your passion for martial arts!! Please send Lillie or Liz a message directly with any questions.
Push your limits with our high intensity cardio circuit designed to build the endurance, power, and mental toughness of a fighter.
Using heavy bags and a variety of gym equipment, you'll rotate through fast paced stations that challenge your conditioning, improve stamina, and increase overall athletic performance. Whether you're preparing for a fight or simply want the conditioning of a boxer, this class will push you to the next level.
Perfect for:
Anyone looking to improve cardio and endurance
Amateur and professional fighters
Members who want to burn calories and boost conditioning
Anyone who wants the stamina, grit, and work ethic of a fighter
No experience is required. Just bring your effort and be ready to work.