Post by Ren

Five things marathon training taught me Michel Butter (that shaped how we built Ren) Across my career—11 Dutch championship titles, 2:09:58 marathon PB, and representing the Netherlands at the Olympics—I’ve spent thousands of hours on the road learning what it really takes to perform. The marathon doesn’t just test your legs. It teaches you. Here are five lessons I carry with me to this day: Focus on the process. You can’t control race day. But you can control your preparation. Deep focus is a skill. Staying locked in for 42K taught me how to be present—on and off the course. Patience drives progress. The best gains happen over time, not all at once. Mindfulness matters. Managing emotions helps you recover faster and go further. Better every day. It’s not about magic. It’s about showing up, adjusting, and improving. These principles are baked into Ren. We built it because too many runners are stuck with rigid plans that don’t reflect real life. Ren adapts—using data and expert-backed insight to adjust your training in real-time, so you stay consistent and confident no matter what the week throws at you. Soon launching, keep your eyes on this channel 👀 Sign up to our waitlist, link in comment 👇🏻 You run. Ren adapts. #MichelButter #AdaptiveCoaching #MarathonMindset #OlympicRunner #PerformanceRunning #SmartTraining #YouRunRenAdapts

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