Adidas Adizero Adios Pro 10 vs 9: Is the New Version Worth the Upgrade?

Introduction

The Adidas Adizero line is the brand’s performance running family, built for elite athletes and for anyone else who simply wants to go fast. Within that lineup, the Adios Pro has long been the tempo and race-day weapon of choice for 5K and 10K pace: lightweight, snappy, sleek on the foot, and unmistakably a racing shoe.

The latest version, the Adizero Adios Pro 10, arrives with real changes, but also with a question mark. Long-time fans of the Pro 8 and Pro 9 loved that shoe’s loose, flexible, almost playful ride. The Pro 10 tightens things up. So is this a step forward or a step back? Let’s break it down.

What Changed in the Adizero Adios Pro 10

The most obvious change is the rod structure inside the midsole. The previous versions used four separate rods plus a separated heel segment. The Pro 10 swaps that for a single pretzel-like branching structure, the same design concept found in the Adios Pro 3, though in a different material.

Adidas has moved to a glass fiber rod here, which is a notable detail. The structure looks more like carbon than the previous setup ever did, which caused plenty of confusion, but it has been triple-confirmed as glass fiber. The intent is clear: settle the ride down, reduce wasted energy at full stride, and push you cleanly off the big toe.

Upper, Fit, and Comfort

The new upper is genuinely an improvement. Past racing uppers in this line felt a bit too stiff and structured; this one is softer, more breathable open mesh, and collapses naturally in the hand. The tongue now has padding, which addresses the lace-bite complaints that plagued earlier versions.

That said, dialing in the lacing remains a chore. The eyelets are small and the laces are high-friction, and several runners needed heel-lock lacing to tame early heel lift. One tester even skipped a hole before a marathon to relieve pressure on the top of the foot. The tongue is also not gusseted, so you have to lay it flat deliberately or risk irritation. Once the fit is right, though, it locks in well.

Ride and Midsole: A More Controlled Feel

The Light Strike Pro foam remains, but Adidas has tweaked the formulation slightly, and the new rod structure changes how it behaves. The Pro 8 and Pro 9 felt loose and flexible, with noticeable play in both directions, and that looseness was a big part of the shoe’s fun factor. The Pro 10 is stiffer and more settled.

In full stride at faster paces, that works in its favor: no wasted energy, a clean roll through the stride, and a raised lateral edge that nudges you toward the medial side and pushes you off your big toe. At slower paces, that same geometry can push your ankle inward a bit, and the sensation took a couple of runs to tame. The trade-off is real: this is still a great tempo shoe, but it loses some of the pep that separated the Pro 9 from rivals in its class.

Specs, Weight, and Price

On paper, the fundamentals are unchanged. The Pro 10 weighs about 6.9 oz in a US men’s size 9, keeps the same stack heights as the Pro 9 at 33 mm in the heel and 27 mm in the forefoot, uses Continental rubber on the outsole, and retains the $180 price point. It is genuinely light, disappears on the foot, and rewards fast turnover. For runners who want something light and nimble rather than max-cushioned, this is exactly the profile they are asking for.

Buying Advice: Which One Should You Get?

Here is the honest take. The Pro 10 nails its brief as a fast 5K and 10K tempo shoe, tested by elite athletes, and it would easily hold its own against other plated tempo shoes in the $180 range. Emotionally, though, it is a slight step back from the Pro 8 and Pro 9 for anyone who loved that flexible, bouncy character.

If you have been curious about this line for a while, the smarter move may be hunting down the Adios Pro 9 at a discount. It has appeared around $90 in some sizes, and the midsole was essentially identical. The Pro 10’s better upper is the main reason to buy new, but at full price it is a tougher call than its predecessor ever was.

Conclusion

The Adizero Adios Pro 10 is a well-executed racing shoe with a clearly improved upper, a more stable and efficient ride, and the same light, quick feel that made this line special. Whether it is the right pick depends on what you value: refined control and a better fit, or the looser, more playful ride of the Pro 9. Both are excellent tempo shoes; only one of them is on discount.