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40Race Shoe FinderEst. 2023 · London

Head to head

adidas Adizero Adios Pro Evo 2vs
Nike Alphafly 3

Adizero Adios Pro Evo 2

approx £296

Estimated street price · £450 RRP

39mm — road legal
Alphafly 3

£203

Typical street price · £285 RRP

40mm — on the limit

Choose the Adizero Adios Pro Evo 2 if…

  • You want the bigger return: 3.8–5% economy gain against 3.4–4.6%, and that gap widens the longer you are out there.
  • You want the lighter shoe: 138g against 218g, a 80g difference you will feel late in a race.
  • You race off a strong, repeatable stride and want the more aggressive ride rather than the safer one.
  • You have a narrow foot and want to be locked in.

Choose the Alphafly 3 if…

  • You want something more forgiving. This is the steadier platform — useful if your form goes late, or if you are on your feet longer.
  • You want a conventional fit rather than a narrow or wide last.
  • Money matters: it is selling around £203 against £296, and the time difference between them is smaller than the price difference suggests.
  • You want more races out of one pair: about 250km of competitive life against 120km.

What does this
mean for you?

Every figure below is recalculated from your race and your current time. The gap between two shoes is not fixed — it grows with how long you are on your feet.

Over marathon from 3:45:00

Time back
Adizero Adios Pro Evo 2: 206s–286sAlphafly 3: 179s–260s
Cost per second saved
Adizero Adios Pro Evo 2: £0.63Alphafly 3: £0.23

Ranges, not promises. Both figures are against a standard trainer, and the honest answer for most runners is that the difference between two shoes of this class is smaller than the difference a month of decent training makes.

Every number.

010203040503936
Adizero Adios Pro Evo 2
010203040504032
Alphafly 3

What you pay

Street price
Adizero Adios Pro Evo 2~£296
Alphafly 3£203■

A tilde marks an estimate: no shop we read is currently listing that shoe, so the figure is RRP less the discount comparable shoes are actually selling at.

RRP
Adizero Adios Pro Evo 2£450
Alphafly 3£285

List price. Almost nobody pays it for a race shoe.

Cost per race
Adizero Adios Pro Evo 2£156
Alphafly 3£51■

Street price divided by the races the foam stays fast for.

Cost per second saved
Adizero Adios Pro Evo 2£0.63
Alphafly 3£0.23■

The whole-life question: what each second of race time costs you.

What it does

Estimated saving
Adizero Adios Pro Evo 2206s–286s■
Alphafly 3179s–260s

Against a standard trainer, over the distance and time set above.

Economy gain
Adizero Adios Pro Evo 23.8–5%■
Alphafly 33.4–4.6%
Built for
Adizero Adios Pro Evo 2Half · Marathon
Alphafly 3Half · Marathon
Best use case
Adizero Adios Pro Evo 2The lightest marathon shoe ever sold and, on the evidence, the fastest. At 138g it is closer to a track spike than a road shoe.
Alphafly 3Still the reference marathon shoe. The Air pods give a propulsive forefoot that nothing else quite replicates, and the wider platform makes it manageable late in a race when your form has gone.

How it is built

Weight
Adizero Adios Pro Evo 2138 g■
Alphafly 3218 g

Manufacturer figure at men's US 9.

Stack (heel)
Adizero Adios Pro Evo 239 mm
Alphafly 340 mm
Stack (forefoot)
Adizero Adios Pro Evo 236 mm
Alphafly 332 mm
Drop
Adizero Adios Pro Evo 23 mm
Alphafly 38 mm
Foam
Adizero Adios Pro Evo 2Lightstrike Pro
Alphafly 3ZoomX with Air Zoom pods
Plate
Adizero Adios Pro Evo 2carbon fibre
Alphafly 3carbon fibre

Rules and fit

Road legal
Adizero Adios Pro Evo 2Yes (39 mm)
Alphafly 3Yes (40 mm)

World Athletics caps road racing shoes at 40 mm of stack.

Fit
Adizero Adios Pro Evo 2narrow
Alphafly 3standard
Stability
Adizero Adios Pro Evo 2demanding
Alphafly 3balanced

Neither is better in the abstract — it depends on your stride.

Race life
Adizero Adios Pro Evo 2~120 km
Alphafly 3~250 km■

How long the foam stays fast, not how long the shoe survives.

Data confidence
Adizero Adios Pro Evo 2verified
Alphafly 3verified

■ marks the better figure where one is genuinely better. Fit, foam, drop and stability carry no mark — they depend on your foot and your stride, not on which shoe is superior.

In your size.

Where to buy

No retailer we can read publishes a live price for this shoe, so we cannot check your size. The links below go to each retailer’s own search, where they show the current price and what they hold.

9 retailer checks failed on the last run, so their prices are missing rather than wrong.

Prices are captured when the site is built and stamped with the time of that check. We never rank a retailer by what it pays us; where a link earns a commission it is marked sponsored and the price you pay is unchanged.

Where to buy

Your UK size

Best price today — some sizes£199.99at Run North West — £85 under RRP

9 retailer checks failed on the last run, so their prices are missing rather than wrong.

Prices are captured when the site is built and stamped with the time of that check. We never rank a retailer by what it pays us; where a link earns a commission it is marked sponsored and the price you pay is unchanged.