Two brothers who once conquered a 260 km desert race and completed an Iron Man found themselves struggling to finish a HYROX competition—embarrassingly out of breath and out of shape.
Fitness influencer Stan Browney wasn’t about to let his friends stay that way.
He invited Rob and Arno back, but this time with a mission: transform their bodies in 90 days and redeem themselves at another HYROX event.
What followed was a raw, unfiltered look at two busy creators battling weight gain, time constraints, and old habits—while millions watched.
Jump to:
Day One: Facing Reality
Arno stepped on the scale first: 104.1 kg with 29% body fat. Rob followed at 82.2 kg with 21% body fat.
I didn’t know it jiggled like this. This is crazy.
Arno laughed nervously as he looked down at his midsection. He set an ambitious goal: lose 20 kg in 90 days.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
If I don’t get to 20, the only reason why it’s acceptable is if I gain muscle.
Rob aimed for seven kilograms but admitted feeling “horrible” about his fitness level.
Stan didn’t sugarcoat things. He handed them personalized 90-day workout plans through his app, stocked them with protein snacks, and outfitted them in fresh Gym Shark gear. Then came the kicker: they’d compete in another HYROX race at the end—ready or not.
Building New Habits (And Struggling With Them)
Arno dove in headfirst. He cleaned out his kitchen, loaded up on healthy groceries, and started following Stan’s app workouts religiously.
I cannot cheat. I have nothing in the house to cheat. I’m healthy. I want to be El Guapo.
His girlfriend joined him on the journey, and together they transformed their garage into a home gym complete with kettlebells, dumbbells, and a treadmill.
Within days, Arno noticed changes. He dropped below 100 kg quickly—mostly water weight—but felt energized and slept better than he had in months.
Rob’s Time Crunch
Rob’s transformation looked different. Between launching his own Belgian fry restaurant, managing a beer brand, creating content across multiple platforms, and caring for his two-year-old son, finding gym time felt impossible.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
I’m the most afraid that I will not manage my time correctly and that I will start missing workouts.
He squeezed in cycling sessions on his old Iron Man bike and grabbed quick strength workouts when he could. Stan adapted Rob’s program on the fly—adjusting for travel days and helping with food choices remotely.
But for stretches of time, Rob went silent. No vlogs. No updates. Just radio silence while juggling life’s chaos.
The Mental Game: Cravings, Plateaus, and Breakthroughs
Arno faced temptation constantly. After football practice, teammates invited him for beers—he stuck with water. Work commitments meant taste-testing unhealthy foods on camera with Rob for YouTube videos.
I think this whole thing is illegal. I’m thinking so much about unhealthy food.
Despite those challenges, Arno stayed consistent. He biked to work daily, prepped high-protein meals, and leaned on his girlfriend for accountability.
Then came the plateau. Around day 25, Arno got stuck at 95.5 kg—frustratingly close to his 30-day goal of 94.1 kg (exactly 10 kg lost).
I’m plateauing really bad. I’m stuck at 95.5. I hate it.
But he also noticed something important: clothes fit better, energy stayed high, and his face looked leaner.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
Day 30: The Results
After 30 grueling days, both brothers reunited with Stan for measurements and weigh-ins.
Arno’s Transformation
- Weight: 104.1 kg → 94.0 kg (10.1 kg lost)
- Body fat: 29.1% → 23.0%
- Waist: 130 cm → 101 cm
- Metabolic age: Dropped from 31
I feel amazing. I’m sleeping better. I’m feeling more energized.
Arno’s girlfriend also lost 7 kg doing the challenge alongside him.
Rob’s Progress
- Weight: 82.3 kg → 80.8 kg (1.5 kg lost)
- Waist: 96 cm → 91 cm (5 cm lost)
- Arms: Maintained muscle mass at 36.5-37 cm
While Rob’s weight loss looked modest on paper, his body composition improved. He lost fat while maintaining muscle—impressive given his hectic schedule.
I survived the busiest month of my life. That’s true.
The Ultimate Test: Half HYROX Challenge
Stan wanted proof they’d actually gotten fitter. He designed a brutal half-HYROX test: 4 km running combined with four strength challenges—1,000 m ski erg, sled pushes, farmer’s carries, and 100 wall balls.
Goal time: under 40 minutes.
Thirty days earlier, completing this would’ve been nearly impossible. Now, both brothers attacked it with newfound confidence and energy.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
On my knees and ankles, the pain is almost gone.
They pushed through 1,000 m on the brutal ski erg, traded off pushing a 152 kg sled, carried heavy dumbbells back and forth, then finished with 100 wall ball shots.
Final time: 38 minutes and 11 seconds.
Both brothers crushed their goal, proving they’d made significant fitness gains in just one month.
Before and After: The Visual Proof
When Stan revealed side-by-side photos from day one versus day 30, the difference was striking.
Arno’s face looked dramatically leaner. His chest showed definition instead of sagging. His midsection had shrunk noticeably.
When you’re fat, you don’t realize it. Look at the difference. I have titties there. There I have like chest.
Rob’s transformation showed more subtle but meaningful changes—visible shoulder definition, reduced belly fat, and improved overall muscle tone despite his chaotic schedule.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
Key Takeaways for Your Own Transformation
What made these brothers successful in just 30 days? Several evidence-based principles emerged:
Accountability Works
Arno’s girlfriend joined the challenge. Rob checked in with Stan’s coaching team. Both had millions watching their progress. External accountability dramatically increases adherence to fitness programs.
Customize Your Approach
Rob couldn’t follow Arno’s routine—his life was too hectic. Stan adapted workouts for travel days and helped with realistic food choices rather than forcing an impossible standard.
Environment Matters
Arno built a home gym, cleared junk food from his kitchen, and surrounded himself with support. Changing your environment is often easier than relying on willpower alone.
Track Everything
Daily weigh-ins, measurements, progress photos, and timed challenges provided concrete feedback. When Arno plateaued, he could still see improvements in how clothes fit and energy levels.
Prioritize Protein
Stan loaded both brothers with protein bars, shakes, and high-protein meal ideas. Adequate protein intake helps preserve muscle mass during fat loss—exactly what Rob’s measurements showed.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
What’s Next: 60 More Days
With 60 days remaining before their full HYROX redemption race, both brothers have momentum on their side.
Arno built sustainable habits—daily activity, home gym workouts, partner accountability, and consistent nutrition. His challenge now is maintaining that intensity without burning out.
Rob’s schedule should calm down after launching his restaurant, giving him more bandwidth for training. Those first 30 days proved he could make progress even during life’s chaos—imagine what focused effort might accomplish.
Stan’s 90-Day Challenge app provides structured workouts adaptable to any fitness level, equipment availability, or schedule constraints. Fifty spots include 24/7 coaching support—the same guidance Rob and Arno received.
Whether you’re a busy parent like Rob, someone ready to overhaul everything like Arno, or anywhere in between, the formula remains consistent: personalized programming, adequate protein, progressive challenge, and reliable accountability.
The next 90 days will pass regardless. You can let them slip by, or you can emerge with your own dramatic before-and-after story.
If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.
- Full-body training with one weight using swings, squats, and presses
- Solid cast iron build that feels stable and lasts for years
- Comfortable grip that makes high-rep workouts easier to handle
Two brothers just proved what’s possible in only 30 days—even when life throws every obstacle imaginable in your path.
