Asics Metaspeed Sky Plus vs Adidas Adizero Adios Pro 3: Which Marathon Racer Fits You?

Introduction

On paper, the Asics Metaspeed Sky Plus and the Adidas Adizero Adios Pro 3 look like near twins. Both are aimed at longer distance and marathon racing, both carry a plate or rod structure underfoot, and their stack heights and weights sit within a whisker of each other. In practice, they could not be more different, and the differences matter a lot depending on how you actually run.

The Sky Plus weighs around 7.2 ounces for a men’s size 9, with 39.5mm of foam in the heel and 33mm in the forefoot for a 6.5mm drop. The Adios Pro 3 comes in around 7.6 ounces in the same size, with 39mm in the heel and 34mm in the forefoot for a 5mm drop. Close enough that spec sheets alone will not decide this one. Here is where each shoe genuinely earns its place.

Stability: A Clear Divide

Stability is the first thing that separates these two. The Metaspeed Sky Plus is noticeably less stable: the rearfoot and midfoot are much more narrow, and there is a lateral sidewall that pushes your foot toward falling off the medial side. If you overpronate or simply want a secure platform, that is a real consideration.

The Adios Pro 3 is the more inherently stable shoe of the pair. The sole underfoot is considerably wider with lots of sole flare, and the rod structure extends further toward the medial side. The result is a shoe that feels secure under your foot, enough that it has proven itself comfortable even as a daily trainer and long run shoe, which is beyond what most marathon racers are built for.

Asics Metaspeed Sky Plus: Best for Shorter, Quicker Efforts

The Sky Plus is at its best when the pace rises. It bounces along really well when speed picks up, making it a lively option for shorter and quicker efforts. Outside of those fast sessions, though, the ride leans fairly firm, and it has proven harder to use for longer efforts.

So if you want a lower drop racer that rewards a quicker tempo and a touch more firmness underfoot, this is the shoe of the two that fits. It works well for racing and fast sessions rather than all-day comfort.

For runners whose race plan revolves around shorter or quicker race efforts, that firm, bouncy character is exactly what you want at pace. It just comes with the trade-off of a narrower, less stable platform.

Adidas Adizero Adios Pro 3: Stable and Comfortable for the Long Haul

The Adios Pro 3 takes the opposite path. It is softer underfoot than the Sky Plus and feels genuinely comfortable at up-tempo efforts, tempo runs, and longer runs. It does not feel as good when you are trying to run super fast, so sprint-pace work is where it gives ground.

Durability is also noticeably better in this shoe, which adds to its appeal as the longer-distance pick. The stability and softness together make it the one worth choosing if you want a marathon racer that doubles as a long run shoe and keeps you secure over big mileage.

Overall Buying Advice

The choice comes down to what you want from a racer. If you want a longer distance racing shoe that is inherently guiding, softer, and more durable, the Adizero Adios Pro 3 is the winner. It suits runners who value stability and comfort across tempo runs and long efforts.

If you would rather have a lower drop shoe that works better for shorter efforts and offers a little more firmness when the pace rises, the Metaspeed Sky Plus is the better bet. It rewards runners who can handle a narrower platform in exchange for that snappy ride at speed.

Conclusion

These two shoes share a spec sheet but not a personality. The Adios Pro 3 is the softer, more stable, more durable marathon racer that can even cover long runs and easy miles. The Metaspeed Sky Plus is the firmer, bouncier, quicker-shoeing option with a lower drop, best for shorter and faster efforts. Match the shoe to the pace you actually race at, and either one can earn its spot.