Nike Alphafly 3 vs Alphafly 1: A Half Marathon Race Test

Introduction

Racing shoes are a deeply personal choice, and few comparisons are as interesting as the Nike Alphafly 3 versus the original Alphafly 1. One runner put the Alphafly 3 through its first proper long-distance test at the Brighton half marathon, using the race as a checkpoint during marathon training, and came away with a clear opinion on which of the two still deserves the race day slot.

How the Alphafly 3 Handled a Windy Half Marathon

The Alphafly 3 had a handful of easy runs and a parkrun behind it before this race, but this was the first time it was used over a half marathon distance. The race itself was a tough one: a windy day on the south coast, with a tailwind heading out and a brutal headwind for the final 5K along the seafront. Pace held around 4 minutes per kilometre until that last stretch, where it slipped to 4:25 to 4:30 per km straight into the wind.

The shoe itself performed well over the distance. There were no issues, and the finish was a solid result for a mid-marathon-training checkpoint, even if the conditions cost a couple of minutes. The real question was whether the Alphafly 3 would earn a place at the Boston Marathon, and that is where the comparison gets interesting.

Why the Alphafly 1 Still Sets the Standard

The Alphafly 1 remains one of the all-time favourite carbon plate shoes for this runner, rated almost identically to the Saucony Endorphin Pro 3 for long-distance racing. It is noticeably fast: the combination of plate and foam creates a bouncy, squishy, propulsive ride that makes you want to pick up the pace the moment you lace it up. It is still used regularly for training runs and parkruns.

The Alphafly 3, by comparison, feels more subtle. The bounce and squish are dialled back, and it does not deliver that same propulsive, fast-flowing sensation. It feels closer in character to a Vaporfly 2 or Vaporfly 3: definitely fast, but not as noticeable on the foot over a long race. For this runner’s style, the Alphafly 1 is still the preferred of the two, and it is the more likely choice for chasing a fast marathon time.

Comfort and Upper Over Long Distances

Where the Alphafly 3 genuinely shines is comfort. The upper is excellent over a half marathon distance: it locks down nicely once laced, feels secure without being tight, and has plenty of padding. There were no hot spots, rubbing, or complaints over 21.1K, which is exactly what you want from a race day upper.

It is a really enjoyable ride overall. The criticism is not that the shoe is lacking in quality, it is that it is missing the pronounced bounce and energy return that makes the original so distinctive.

Which Alphafly Should You Race In?

Both are top-tier carbon plate racers, but they suit different preferences. If you love a loud, bouncy, propulsive ride that announces itself on every stride, the Alphafly 1 remains hard to beat. If you prefer a subtler, smoother, more understated fast shoe with an outstanding upper, the Alphafly 3 is a strong pick.

For marathon and half marathon racing in this case, the verdict leant toward the original. The Alphafly 3 is still on the list for a 10K test soon, and the Alphafly 2 is on the wishlist after reports of its bounciness, but for now the Alphafly 1 keeps its place as the favourite.

Conclusion

The Nike Alphafly 3 is a fast, comfortable, top-tier racer with a superb upper, but in a head-to-head over long distances it lacks the bounce and propulsive feel that makes the Alphafly 1 such a beloved race day shoe. If you can still find the original and it matches your running style, it remains the one to beat.