CTS Ultrarunning

CTS Ultrarunning World-class coaching for trail and ultrarunners.

06/10/2026

According to one of the most comprehensive reviews of ultrarunning nutrition ever published, the biggest nutritional challenge facing ultrarunners is simply consuming enough calories to support training and recovery.

Here are the biggest takeaways:

✅ Eat more on your hardest training days. A 3-4 hour run creates a completely different energy demand than an easy recovery day. Don’t eat the same way after both.

✅ Carbohydrates remain your primary fuel source. Despite the popularity of low-carb and ketogenic approaches, the research continues to support a carbohydrate-rich diet for performance and recovery.

✅ “Train low” is a tool, not a lifestyle. Occasional easy runs with lower carbohydrate availability may have a place, but never at the expense of workout quality, recovery, or overall training consistency.

✅ Train your gut to handle more food and fluid. Practice race-day fueling during long runs. If you plan to fuel aggressively on race day, your gut needs to be prepared for it.

✅ Keep hydration simple. Use the WUT framework. If two of the three suggest dehydration, address it before training.

The biggest lesson?

Ultrarunners often spend too much time chasing nutrition hacks and not enough time mastering the fundamentals.

Major in the basics. Minor in the marginal gains!

06/10/2026

Most ultrarunners don’t have a nutrition problem. They have an underfueling problem.

Before you worry about supplements, keto, fasted training, or nutrient timing, ask yourself:

👉 Am I eating enough to support my training?

The research is surprisingly clear:
• Eat enough
• Prioritize carbohydrates
• Train your gut
• Stay hydrated

The basics aren’t flashy, but they’re usually where the biggest gains come from.

Full breakdown on our YouTube channel. Link in bio.

For three days, a small group of runners immersed themselves in the Colorado mountains alongside CTS coaches, guest expe...
06/04/2026

For three days, a small group of runners immersed themselves in the Colorado mountains alongside CTS coaches, guest experts, and fellow athletes who share the same passion for pushing their limits.

Between the miles and climbs, the real work happened through conversations on the trail, hands-on skill sessions, shared meals, and practical lessons athletes can take directly into their next training block and race season.

A huge thank you to our coaches, guest presenters, and athletes for making this year’s High Altitude Ultrarunning Camp such a memorable weekend ⛰️

06/03/2026

We all know that heat training works, but more heat training doesn’t automatically mean better performance 🔥

One of the biggest mistakes athletes make before hot races is stacking heat stress on top of training stress without accounting for the recovery cost. The result? They arrive at race day heat adapted, but carrying more fatigue than necessary.

The research shows that simple post-exercise heat exposure can produce meaningful heat adaptations without interfering with training quality.

Sometimes the smartest protocol isn’t the hardest one. Watch the full breakdown on our YouTube channel, linked in bio 🔗

05/27/2026

When Molly Seidel transitioned from the marathon to ultrarunning, the goal wasn’t to reinvent her fitness. The engine was already there:

⚙️ elite aerobic capacity
📈 world-class threshold fitness
🫁 years of high-volume training
💥 exceptional running economy

What changed was how that fitness needed to perform under the demands of an ultra. Long hours on variable terrain. Fueling at ultra-level carbohydrate intake. Managing fatigue deep into a race. Learning how to maintain output when the conditions, terrain, and body all start pushing back.

That same framework applies to any marathoner thinking about moving beyond 26.2.

Watch the full breakdown on our YouTube channel - linked in our bio 🎥

05/20/2026

Progress in endurance training is often subtle, which can make it hard to recognize when fitness is actually improving.

One workout rarely tells the full story. The real signals show up in the patterns that develop over weeks and months.

Maybe your heart rate is lower at the same pace. Maybe your interval output is improving across training blocks. Or maybe you’re running the same Strava segment faster under similar conditions 📈 Those are all meaningful signs that your fitness is moving in the right direction.

When you consistently track those trends over time and compare yourself to where you were a few months ago, you create real benchmarks for progress and a clearer picture of how your training is working.

05/13/2026

Protect your easy days! 🏃‍♂️

Below LT1, your body drives the aerobic adaptations that support everything from fat oxidation to mitochondrial development and long-term durability.

The problem is that easy effort often drifts into moderate effort without you realizing it. The recovery cost rises significantly, but the aerobic return doesn’t improve much in exchange.

You end up paying more for roughly the same adaptation, and that cost gets taken directly from your ability to execute and absorb hard sessions.

Watch the full video on Youtube, 🔗 link in bio.

Good coaching means meeting athletes where they are and helping them build from there.For Madeleine, that meant learning...
05/12/2026

Good coaching means meeting athletes where they are and helping them build from there.

For Madeleine, that meant learning how to prepare for the demands of ultra stage racing, build durability without injury, and continue progressing well into her 60s.

The result:
🏔️ Completion of multiple stage races
🏁 Two 100-mile finishes
📈 Confidence built through years of consistent work

This is what’s possible when training is built around the athlete, not just the outcome.

05/06/2026

Training zones can look complex, but the physiology underneath is simple.

At the physiological level, there are three zones defined by two key thresholds. Everything else builds on that. So why use five zones?

Because training requires more precision. Five zones don’t change the physiology, they break it down so you can better control intensity and structure your training.

Three zones reflect how your body works. Five zones help you apply it with greater intention.

Watch the full video on YouTube linked in our bio for a deeper dive into zone charts.

04/29/2026

One long run won’t prepare you for late race demands.

DIY training camps, stacking 2-3 days of running, creates the fatigue that occurs on race day. That’s where pacing, fueling, and decision making really get tested.

Fatigue becomes familiar. Discomfort becomes expected. And when that happens, uncertainty stops being the limiter.

Address

1319 W COLORADO Avenue
Colorado Springs, CO
80904

Telephone

+18663550645

Website

Alerts

Be the first to know and let us send you an email when CTS Ultrarunning posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to CTS Ultrarunning:

Shortcuts

Share

Category