Train with purpose at CrossFit 681
CrossFit 681 — functional fitness, tight-knit community, visible results.
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Official Mayhem affiliate - Programming six days a week
- Coached classes for every level
WHAT is CrossFit?
A training methodology built on constantly varied functional movements at high intensity. Squat, pull, run, push, lift — real movements, real results. Every one-hour group session is coach-led, technique-focused and scalable to your level.
WHO is CrossFit for?
Everyone. Whether you're a complete beginner or a seasoned athlete, every workout scales to meet you where you are. No experience required — just the willingness to show up. Join a supportive community that moves forward together.
Why train at CrossFit 681?
Train with purpose. At CrossFit 681 every workout is part of a plan: our programming is built so that week after week you get stronger, fitter and more mobile — and you see your progress in numbers, not just in the mirror.
We train in coach-led groups where a coach watches your technique and scales the load to your level. Beginners learn the movements safely, while experienced athletes get enough challenge to keep improving.
We train on Mayhem programming across four tracks — CrossFit, Barbell Club, Engine and Teams — and during Open Gym hours you can work on your own goals.
Explore our programsYour first class
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Pick a time
Open the schedule, choose a class and reserve your spot online.
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Show up
Your coach walks you through the movements and scales the workout to your level.
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Keep going
Choose a punch card or a monthly membership that fits your routine.
Why 681?
681 AD — not the founding of Bulgaria, but its rebirth. Historians point to 632 AD and Khan Kubrat's Great Bulgaria as the true origin. We know this.
Without roots, we are lost.
Read our storyFrequently asked questions
Do I need experience?
No. Every workout is scaled to your level, and a coach watches your technique throughout the class.
How long is a class?
Group classes last one hour and include a warm-up, the main workout and a cool-down.
What memberships do you offer?
Drop-in classes, 4, 8 and 12-class punch cards, and monthly memberships.
Do you have classes for teens?
Yes. We have student and teen pricing, plus a 12-class card for teens.
Can I train on my own?
Yes, but only during Open Gym hours. That's when you can use the gym and follow your own program.
How do I book a class?
Open the schedule on this site, pick a class and reserve your spot online. The schedule also shows how many spots are left in each class.
Can I bring a friend?
Yes. Every plan lets you bring a friend once a month for free.
What is Mayhem programming?
CrossFit 681 is an official Mayhem affiliate. Our workouts are designed by Darren Hunsucker and the CrossFit Mayhem team, tested in their gym and delivered to our athletes six days a week.
What should I bring to my first class?
Comfortable training clothes, trainers and a bottle of water. Barbells, plates, kettlebells and the rest of the equipment are at the gym.
Why are you called 681?
681 AD marks Bulgaria's new beginning under Khan Asparuh. The name is our way of honouring our roots — read the full story on our About page.
Find us
We're in Sofia. Open the map for directions or give us a call.
Ready to start?
Come see for yourself.