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40Race Shoe FinderEst. 2023 · London

Head to head

adidas Adizero Adios Pro 4vs
ASICS Metaspeed Sky Tokyo

Adizero Adios Pro 4

£176

Typical street price · £230 RRP

39mm — road legal
Metaspeed Sky Tokyo

£200

Typical street price · £250 RRP

39.5mm — on the limit

Choose the Adizero Adios Pro 4 if…

Nothing here separates it from the Metaspeed Sky Tokyo in your favour. On this data the other shoe answers every case at least as well, so buy this one only if you already know it fits you better.

Choose the Metaspeed Sky Tokyo if…

  • You want the bigger return: 3.5–4.7% economy gain against 3.2–4.3%, and that gap widens the longer you are out there.
  • You want the lighter shoe: 183g against 210g, a 27g difference you will feel late in a race.

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 4: 165s–240sMetaspeed Sky Tokyo: 186s–266s
Cost per second saved
Adizero Adios Pro 4: £0.21Metaspeed Sky Tokyo: £0.22

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.

010203040503933
Adizero Adios Pro 4
0102030405039.534.5
Metaspeed Sky Tokyo

What you pay

Street price
Adizero Adios Pro 4£176■
Metaspeed Sky Tokyo£200

What the shoe is actually selling for across the shops we read, not its RRP.

RRP
Adizero Adios Pro 4£230
Metaspeed Sky Tokyo£250

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

Cost per race
Adizero Adios Pro 4£43■
Metaspeed Sky Tokyo£51

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

Cost per second saved
Adizero Adios Pro 4£0.21■
Metaspeed Sky Tokyo£0.22

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

What it does

Estimated saving
Adizero Adios Pro 4165s–240s
Metaspeed Sky Tokyo186s–266s■

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

Economy gain
Adizero Adios Pro 43.2–4.3%
Metaspeed Sky Tokyo3.5–4.7%■
Built for
Adizero Adios Pro 410K · Half · Marathon
Metaspeed Sky Tokyo10K · Half · Marathon
Best use case
Adizero Adios Pro 4The best value at the very top of the market. Within touching distance of the Evo 2 for performance at half the price and twice the life.
Metaspeed Sky TokyoFor stride-length runners — the Sky is built to let your stride open up rather than turn over faster. Arguably the best all-round marathon shoe currently made.

How it is built

Weight
Adizero Adios Pro 4210 g
Metaspeed Sky Tokyo183 g■

Manufacturer figure at men's US 9.

Stack (heel)
Adizero Adios Pro 439 mm
Metaspeed Sky Tokyo39.5 mm
Stack (forefoot)
Adizero Adios Pro 433 mm
Metaspeed Sky Tokyo34.5 mm
Drop
Adizero Adios Pro 46 mm
Metaspeed Sky Tokyo5 mm
Foam
Adizero Adios Pro 4Lightstrike Pro
Metaspeed Sky TokyoFF Leap over FF Turbo+
Plate
Adizero Adios Pro 4carbon fibre
Metaspeed Sky Tokyocarbon fibre

Rules and fit

Road legal
Adizero Adios Pro 4Yes (39 mm)
Metaspeed Sky TokyoYes (39.5 mm)

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

Fit
Adizero Adios Pro 4standard
Metaspeed Sky Tokyostandard
Stability
Adizero Adios Pro 4balanced
Metaspeed Sky Tokyobalanced

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

Race life
Adizero Adios Pro 4~260 km■
Metaspeed Sky Tokyo~250 km

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

Data confidence
Adizero Adios Pro 4verified
Metaspeed Sky Tokyoverified

■ 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

Your UK size

Best price today — some sizes£150at Runningbear — £80 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.

Where to buy

Your UK size

Best price today — some sizes£199.90at Startfitness — £50.10 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.