The fourth Apple Watch Ultra I have owned, and the one I would tell most runners not to buy. Externally nothing has changed since 2022. Everything new is on the inside, and the only change I have properly felt is the battery, which is now genuinely a two day watch. I also dig into Apple's own heart rate accuracy study and what it quietly leaves out. An honest review from someone who bought it with his own money, loves it, and does not need it.

There are two marathon walls and they are completely different things. One is physical, when your fuel genuinely runs out. The other is mental, when your legs are perfectly fine and your brain is making a very reasonable case for stopping. Here's how to tell them apart, why most runners never meet the physical one, what twelve years of London Marathon results say about going out too fast, and the moment in the race when the argument finally stops.

What could you run a marathon in, based on your parkrun time? It's one of the most common questions in running, and it's also the quickest way to talk yourself into a goal you can't hit. Here's how race predictors actually work, why almost every free calculator flatters your marathon time, and what a prediction is really telling you. Plus the things worth checking before you build six months of training around a number.