The “hero week” can be compelling – it looks nice on Strava, it earns kudos, heck, it can even be a big confidence booster of what you’re capable of.

But are you shooting for that short-term win, or true long-term progress in the sport and PBs?

The concept of sustainable training (that is, repeatable sessions done consistently over time) is well-known in endurance sport. It’s not as glamorous, but there’s a reason it’s talked about, and that’s because it works.

Let’s talk about what truly sustainable long-term training looks like, so that you can apply this to your own program (and let the finish line be the place where your hard work shows!).

What Really Defines Peak Performance

An interesting place to start, intellectually if for no other reason, is by looking at the top of the sport. What separates the best of the best? (And what holds them back?)

Often, it’s injury and illness getting in the way. Think of Laura Philipp, who’s had to largely delay her season due to significant illness; Lionel Sanders, who’s been out for much of the past 2.5 years with recurrent injuries; Lucy Charles-Barclay, who’s become known for her relentless ability to come back; or Jan Frodeno, who faced career-threatening injuries near the end of his racing days but was able to return for one final memorable victory in Milwaukee…and there are far too many examples to list.

These examples may not get as much attention as they should. It’s not as inspiring for athletes to post about and share their down moments, and when they’re absent from race start lists, we don’t necessarily see the impact front and centre. But at the highest levels of performance, yes, training matters — and, as you’ll often hear the pros say, recovery truly is the other half.

That means not only preventing injury and illness (though that’s key), but also maintaining the ability to productively absorb and respond to the training load being applied. And that capacity isn’t static. It evolves across an athletic career and shifts based on factors such as training status, age, and the other demands being placed on the body.

All to say, peak performance is defined by hard work, sure, but the prerequisite for hard work is a body that can consistently show up to put in that work, stacking weeks, months, and years of training until they compound into something special. (Yes, it’s cliché, but there’s a reason they say “consistency is king.”)

What Sustainability Looks Like

When we embark on a training plan, or sign up for an exciting new goal like our first Ironman, it’s human nature to want to immediately dive in and go after it. We’re excited, it’s rewarding, progress is often visible and very fast at the start…and we can usually get away with doing too much for a while. (Hence, the “hero week.”)

But my advice, learned the hard way? (And one many pros would likely give you as well?) Start with weeks that represent less than you’re capable of…and then begin collecting them. That’s where the true magic lies, even if it takes a little longer to show up.

I was in Boulder recently hearing from first-hand sources about the training plans followed by some of the very best triathletes in the world. While I won’t disclose exact details (the trade secrets of specific athletes and their coaches!), I can tell you the theme: at first, athletes thought their plans were too easy. But they had fewer injuries, fewer MRIs, and fewer missed sessions or compromised weeks than before. And they ultimately achieved a level of dominance through a plan that almost felt “easier”…but what it really was was sustainable.

These same individuals shared not only the importance of volume management, but perhaps even more so, intensity management, particularly in long-course triathlon. Our ability to absorb stress and load is finite – we truly can’t do it all. So you have to identify the physiological qualities that will move the needle most on race day based on the specific demands of the event you’re training for.

There’s also an old saying in triathlon that the only day you need to win is race day. He or she who “wins” training may actually be doing more harm than good.

(Unless, of course, we change the definition of “winning training” to mean consistency – the ability to train productively, without interruption, over a long period of time.)

Putting It Into Practice

Here are some key messages to take away and consider in your own athletic journey:

1. It’s okay (and often smart) to train below your max. Replace the goal of maximizing every week with the goal of collecting consistent weeks. And if you’re gradually building those weeks over time, eventually you’ll arrive at the training plan that looks impressive to you – without having broken yourself en route to getting there.
2. Define ahead of time what success looks like, and try not to deviate from it. Don’t push above the plan by adding extra challenges, intervals, or volume just because you feel good that day. At the same time, try not to miss training unless there’s a genuine reason to (e.g., injury, illness, or an exceptional life circumstance).
3. Have confidence in the long-term journey. As much as you may ask yourself, “Am I crushing this week?” also ask, “Am I preserving my ability to hit next week?” If something threatens to derail you, such as a niggle that’s suddenly shown up, prioritize the long term. It tends to pay off much more than the short term.
4. Know that true athletic excellence is achieved over years. Even as an age grouper, if you want to reach your potential, it’s probably not going to happen next month or even this year. You have to play the long game; anything else is selling yourself short. So, since that’s the only true game in town, you may as well start now: avoid unnecessary setbacks, keep stacking the work, and trust that you may actually reach your peak faster by taking the more sustainable route there.

Your training (or your Strava) may not always look the most epic, but your race days very well might when all that consistent work finally comes together.