Marc Dobay

Marc Dobay has been walking through our doors for almost nine years now, and if you've spent any time in the 3:30 or 4:00 pm class with him, you already know him as "Big Marc" — the guy with the C7 Corvette, the wall full of left-handed guitars, and a bench press that still surprises people. What most people don't know is that Marc's story didn't start in a gym. It started with a photo he almost didn't recognize himself in.

Back in 2010, Marc had just switched careers — out of the automotive industry his family had been in for generations, and into a desk job on the technical side. The pounds came with the transition. He was pushing close to 210 pounds when someone snapped a photo of him at a work conference in a polo shirt. "Who is that guy?" he remembers thinking. That was the moment he decided to change something.

So he started small. Every night, he'd run to the mailbox and back. Then past the mailbox and back. Week after week the distance grew — half a lap around his condo complex, then a full lap, then one mile, then two, then three. He layered on P90X and Insanity, ran a string of half marathons and 5Ks, and dropped from around 210 pounds to roughly 145 — sub-10% body fat — over about two years, using a structured nutrition plan to get there.

But even at his leanest, something was missing. Marc was putting in hours at a commercial gym near where Prototype sits today, going through the motions — a few curls, a few bench presses, a walk on the treadmill, no real plan. "I was wandering around doing whatever I felt like," he says. "I just didn't have the discipline." A coach's high-intensity class gave him a taste of real structure, and that was enough to get him to walk across the street and try CrossFit for the first time.

His first workout was Virtuosity — a benchmark that throws a handful of unfamiliar movements at you all at once. He walked in expecting a loud, hyper-masculine, screaming-coach environment. What he found was the opposite: people were relaxed, having a good time, just getting through the workout together.

The Numbers Don't Lie

Nine years later, Marc has logged 1,301 sign-ins and 2,479 performance results in our system — 325 of them personal records. His bench press has climbed to 390 pounds, his deadlift sits at 405, and he's front squatting 375 — still adding weight to lifts he's been doing for years.

He still remembers the surprise of hitting just under 300 pounds on the bench at his first Lift Off — a number that's grown by nearly 100 pounds since. Double-unders took him a while, but he got them. A strict muscle-up is still on the list — he's got a rep or two off the ground, but the full movement and a free-standing handstand remain the goals he's chasing next.

For Marc, it was never really about the numbers on the bar. "It's good to be able to say I can keep up with my 20-year-old son," he says — and to have his son know his father isn't someone he's going to have to take care of. Staying strong means they can just go out and do things together, without health getting in the way.

Outside the gym, Marc's still the same guy who jokes about having "automotive ADD" — buying, fixing, and flipping cars every couple of years, save for the Corvette and the Jeep Gladiator he can't bring himself to sell. He collects left-handed guitars — "lefties are like unicorns" in the guitar world — and can rip through a few bars of Metallica or Iron Maiden's "The Trooper" before he calls it good and hangs it back on the wall. And where running used to be his outlet, these days it's cycling — the same clear-headed feeling, just on two wheels instead of on foot.

Marc didn't come to Prototype needing to lose weight — he'd already done that on his own, one mailbox lap at a time. He came because he was bored, and he stayed because a coach-led hour of "just show up and I'll tell you what to do" was exactly the structure he needed. Nine years, 2,479 logged workouts, and 325 PRs later, he's still finding the next thing to chase. Nobody comes here for what they actually find.

"I always joke that I come to work out so I can eat more."

Marc has gotten freakishly strong. Hands down, he's one of the strongest guys in this building — but that's not luck, that's the result of the consistent work he's put in. Extra reps during open gym, training with Coach Tony, putting real focus on the specific areas he wants to improve. Watching him grow and crush his goals over these last few years has been awesome.

On top of that, he's just an awesome guy. Humble, friendly, welcoming to anyone who walks through the door — whether it's their first day or their thousandth.

Big Marc for the win.

Marc joined us for a full Community Conversation episode — cars, guitars, the mailbox story in his own words, and a lot more than we could fit here.

This story was developed through a recorded video interview with the member and shaped with the help of AI writing tools. The facts, quotes, and experiences are Marc's own — AI helped organize and present them in a format worthy of the story he's lived.