"Wait, you tape their mouths during training?" Yes. On purpose. And it's one of the simplest, cheapest tools in the whole book. The CO2 Flip Most coaches out there roaming IG late a night assume more oxygen in equals better performance. However, blood oxygen saturation sits around 95-99% even during hard exercise — oxygen usually isn't the limiting factor. Nasal breathing actually increases CO2 slightly compared to mouth breathing, because you're exchanging less total air. That sounds bad....
5 days ago • 1 min read
"Cal, is the GOAT Drill just a fancy warm-up?" I get this one a lot. And I always say no — but it takes about a minute to explain why. The Part Coaches Keep Missing Watch your athletes in warm-ups. You're looking at their feet, their hips, their arm swing. Makes sense. ..But Cal says there's something happening before any of that — and most coaches never see it. When we were deep in the Olympics prep discussions that shaped TP2, Cal said something I keep coming back to: "All I did was make...
6 days ago • 2 min read
"When should I run my speed work during practice?" If you said "at the end after we get through our main drills" — you just wasted your best window of the day. The window that closes and doesn't reopen Cal and Jonathon Janz lay this out clearly in TP2: there's a narrow window right after warm-up where speed and skill gains actually happen. Once fatigue accumulates past a certain point, no amount of effort, coaching, or motivation reopens it. This isn't opinion. It's how the neuromuscular...
7 days ago • 1 min read
"I can't afford a Tendo unit for my whole team. How do I autoregulate rest periods without one?" You already own the tool. It's strapped to your wrist. Heart Rate as the Rest-Period Trigger In the Triphhasic 2 book we discuss several biometric methods to autoregulate training. For example, biometric method #2 skips the expensive velocity tech entirely and uses heart rate recovery (HRR) instead. Say you're running 30-second all-out bike intervals. Instead of a fixed rest clock, the athlete...
18 days ago • 2 min read
"What does Cal actually do differently with an Olympic athletes vs. everyone else?" Honestly? Nothing. And that's the whole point. 30–0 Into the Gold Medal Game Cal's USA women's hockey team went into the gold medal game at the Olympics with one of the most dominant stretches in the history of the sport. 30 goals to zero. They'd beaten Canada 5-nothing a week earlier. These women were on another level. And Cal? He walked into the arena 40 minutes before warm-ups and something hit him that he...
20 days ago • 2 min read
"My athlete's glute keeps shutting off. We've tried every activation drill. What are we missing?" We get some version of this question almost weekly. And honestly, a year ago I probably would have said "more RPR" or "check their hip extension pattern." Then Cal told me a story that changed how I think about glutes entirely. The Toe That Almost Broke Cal's Thumb Cal was testing one of his most elite athletes — a guy with a 44-inch vertical (strict, hands on hips, not the internet kind). Cal...
22 days ago • 2 min read
"We've been using bar speed and vertical jump to autoregulate for years. It's been working great. Why would we change anything?" The 20 Year Miss Here's what happened: Cal and his team noticed that bar speed and vertical jump output would drop during training sessions — and they'd shut athletes down, assuming it was fatigue. Standard autoregulation. The kind every good program uses. But it wasn't central fatigue. It was something Cal calls tonus creep — a local muscular tension buildup that...
about 1 month ago • 2 min read
"My athletes always complain about tight hamstrings. We stretch them every day and nothing changes. What are we missing?" Here's the thing — you're probably not missing a stretch. You're missing the real problem entirely. It's Not a Flexibility Problem Tight hamstrings are almost never about the hamstring being too short. They're tight because they're doing a job that isn't theirs. When the glutes aren't firing first during hip extension, the hamstring picks up the slack. It becomes the...
about 1 month ago • 1 min read
Here is a great way to change up your programming a bit and get more transfer on to the field where it counts. Most coaches adjust loads by phase — heavy in strength blocks, lighter as they move toward speed work. But since you are reading his, you know you can also adjust foot position to match. What Elite Sprinters Are Actually Doing Here's what Cal noticed watching the best sprinters in the world: foot position isn't random. Coming out of a stance, feet are wide. As athletes accelerate and...
about 2 months ago • 1 min read