Hellooo runner 👋 I’ve just landed in Berlin, where I’ll be running the Berlin Marathon this Sunday (not racing, just a relaxed run around town!) If you happen to be here too, let me know! Just hit reply on this email.

Also… I got married last weekend! I’ll share a sneaky pic at the bottom of this email for those interested. And of course, I went for a 5k shakeout before the wedding started, haha.

This week’s edition is packed with inspiration, gear, and a chilly race to add to your calendar. Alright, let’s run with it ⤵️

I’ve already featured Max Jolliffe once before (King of Moab… if you haven’t seen it, go watch!). But this new documentary is just too good not to share.

The edit is creative and pulls you right in. I’m not the biggest fan of the text overlays, but that’s just personal. Overall, it is a short and super-inspiring watch (only 15 minutes).

Mary Denholm is on fire right now. She won the Leadville 100 in 2024, and just last week (Sept 12), she lined up for the Run Rabbit Run 100 in Colorado after only a 6-week training block. Earlier this year, she battled a hamstring injury and then an environmental mold exposure, which sidelined her through the spring.

But her training when healthy is huge. A marathon per day, often split into doubles, with some weeks beyond 200 km / 130 miles. Strength work twice a week and smart fueling help, but one of her real secrets is the LEVER system. It is a treadmill setup that reduces impact while letting her pile on aerobic volume without breaking down.

On Instagram, Mary shares thoughtful posts about deciding not to race, navigating injury and grief, and the joy of running. Plenty of topics every runner can relate to, whether you are chasing ultras or just enjoying the daily miles. Enough reasons to give her a follow!

Here’s one for the bucket list. On March 28, 2026, runners will gather on Lake Tisleifjorden in Norway for the Frozen Lake Marathon. Yes, you read that right. The race takes place entirely on ice, about 80 cm thick, with snow-capped mountains rising all around.

You can pick your challenge: 10k, half marathon, or full marathon. The vibe is unlike anything else. No city streets or trail climbs, just endless white and the crunch of spikes on ice under your feet.

If you’re looking for a race that combines adventure, beauty, and bragging rights, this is it. Can you imagine telling your friends or family about you doing this race? (I certainly cannot, with my Raynaud’s syndrome, haha).

Limited spots are available, so if the idea of running across a frozen lake makes your heart race, this might be your spring destination.

Not too long ago, I talked about the Coros Pace 3 here in RunLetters. Today, I’m back with Coros, but this time ‘round it’s time to chat about the “bigger brother”: the Coros Pace Pro.

It’s bigger, it’s faster, it has a better screen, slightly better battery life, and it feels more premium. Oh, and it’s got offline maps. All that for roughly €400 | $349 | £349.

Yet… I decided to keep the Coros Pace 3 (which retails for €249 |$229 | £219). Why? I explain that in my comparison video, which you can see below:

My YouTube algorithm serves me the craziest mix of the running world. Crazy-fast marathoners, insane ultra runners, and 10k masters.

Every now and then, it’s so refreshing to see someone “start from zero.” This video from Matt, which randomly popped up in my feed, was a welcome change. It shows Matt’s journey from “barely running at all” to running a full marathon. By day 10 of his training, his shins and calves are screaming, and you realize this is exactly why people need proper coaching and a well-paced build-up.

Anyway, it is a fun watch. And I hope Matt keeps training for his next marathon!

That’s it for another edition of RunLetters ✅

Wish me luck this weekend in Berlin — I’m not racing it, but hey, 42km is still 42km!

I hope you have a wonderful weekend ☀️ Make sure to lace up those shoes and go for a (little) run!

Caroline ☺️