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Adidas Adizero Boston 9(2020)

Discontinued · road · Tempo / Daily · $120

Boost-and-Lightstrike tempo trainer with a firm, torsional feel.

Built for tempo, daily, at a target pace of 6:45–9:15 /mi on road.

This model is no longer in production. The closest shoe you can buy today is Adidas Adizero Boston 13.

The spec sheet

Weight
275 g / 9.7 oz
Heel stack
30 mm
Drop
10 mm
Plate
—
Cushioning
3 / 5
Energy return
3 / 5
Responsiveness
3 / 5
Rocker
2 / 5
Flexibility
3 / 5
Stability
3 / 5 (5 = most guidance)
Toe-box
Standard
Sizing
True to size
Durability
~400 mi
Price
$120

How it rides

The foam

Adidas tuned this midsole balanced (3/5 on our cushioning scale). Energy return is moderate — comfortable and predictable rather than bouncy. 30 mm of heel stack keeps you low and connected, with more ground feel than most current trainers. Combined, the ride reads as lively at 3/5 responsiveness.

The plate

There is no plate here. The midsole does all the work, so the shoe flexes naturally and stays versatile across paces — easier on the feet day to day, but without the snap of a plated shoe when you want to roll.

The geometry

A tall 10 mm drop tips weight forward off the heel, which usually suits heel strikers and calves that dislike low-drop shoes. The geometry is fairly traditional and flat, so the shoe follows your foot rather than steering it. Forefoot flex is middle of the road. Support is light — neutral, with a mildly steady platform.

Fit, sizing & life

The toe-box is standard width — comfortable for most feet without swimming. It fits true to size. Expect roughly 400 miles from the outsole, about $0.30 per mile at $120.

For the foams and plates Adidas uses across its line, read the Adidas brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

275 g / 9.7 oz

Level with the catalog median of 275 g

Heel stack

30 mm

6 mm lower than the catalog median of 36 mm

Drop

10 mm

4 mm higher than the catalog median of 6 mm

Price

$120

40 cheaper than the catalog median of 160

Responsiveness

3 / 5

Catalog median 3 / 5

Cushioning

3 / 5

Catalog median 4 / 5

Energy return

3 / 5

Catalog median 3 / 5

Durability

~400 mi

Catalog median ~400 mi

Within the Adidas line it is lighter than the brand's median (278 g / 9.8 oz) and sits lower than its median stack (35 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

On Cloud X 4

268 g / 9.5 oz · 30 mm · 9 mm drop · — · $150

Gym-to-run hybrid built for HIIT, lifts and short runs.

Adidas Supernova Stride

280 g / 9.9 oz · 33 mm · 10 mm drop · — · $110

Entry Supernova with a simple, steady Dreamstrike ride.

Adidas Supernova Ease

285 g / 10.1 oz · 33 mm · 10 mm drop · — · $110

Flexible, forgiving entry daily for new runners and walkers.

Nike Winflo 11

283 g / 10.0 oz · 35 mm · 10 mm drop · — · $105

Budget Pegasus alternative: full-length Air and a durable build at a friendly price.

Under Armour HOVR Turbulence 2

290 g / 10.2 oz · 30 mm · 8 mm drop · — · $90

HOVR-cushioned value daily trainer with a springy heel.

Lineage & siblings