Comparisons / Super trainer

Saucony Endorphin Speed 6 vs ASICS Superblast 3

The two super trainers people cross-shop most. The Endorphin Speed has a nylon plate and a snappier ride, and it's at its best at tempo and marathon pace. The Superblast is plateless with a huge stack of foam that makes it softer, more protective and more versatile, and reviewers love it, though it costs £30 more.

By the RunShoeRotation team. Written October 2026; specs, scores and prices updated October 2026. How we compare shoes.

Saucony Endorphin Speed 6Saucony Endorphin Speed 6: photo coming soon PHOTO INCOMING
SauconyEndorphin Speed 6Super trainer
ASICS Superblast 3ASICS Superblast 3: photo coming soon PHOTO INCOMING
ASICSSuperblast 3Super trainer97/100 · 1 review

Which should you buy?

Choose the Endorphin Speed 6 if you want a lively, plated trainer for workouts and race-pace long runs.

Choose the Superblast 3 if you want one shoe that handles everything from easy miles to marathon pace with maximum cushioning.

The Endorphin Speed 6 is 5 g lighter than the Superblast 3. It has 7 mm less foam under the heel. It costs £30 less at full price.

Side by side

SpecEndorphin Speed 6SauconySuperblast 3ASICS
Review scoreNot enough reviews yet97/100 (1 review)
TypeSuper trainerSuper trainer
Weight (men's UK 8.5)230 g235 g
Heel stack38 mm45 mm
Drop8 mm8 mm
CushioningBalancedSoft
BounceSpringySpringy
PlateNylon plateNo plate
SupportNeutralNeutral
FitTrue to sizeTrue to size
Widthsstandardstandard
Waterproof versionNoNo
UK RRP£170£200

Weights are for a men's US 9 / UK 8.5. Prices are UK RRPs; shops often sell for less.

What the critics say

Endorphin Speed 6

  • Springier PWRRUN PBX foam
  • More cushioning but lighter
  • Secure heel lock
  • Less grounded at easy paces
  • Little rubber at the heel

Superblast 3

  • Lighter than the Superblast 2
  • Springier ride from FF Leap foam
  • Better breathability and midfoot hold
  • Less snap than the Superblast 2
  • Slower to pick up pace

Scores from RunRepeat.

Paraphrased from published reviews.

What's new in each

Saucony Endorphin Speed 6: New PWRRUN PBX foam, 2 mm more stack and a redesigned nylon plate, while dropping about 17 g compared with the Endorphin Speed 5.

ASICS Superblast 3: Swaps FF Turbo+ for the lighter, bouncier FF Leap foam, adds 1 mm of stack and sheds about 10 g. The outsole and midfoot hold are refined too.

Prices for the Endorphin Speed 6 Prices for the Superblast 3

More comparisons

Still torn?

The shoe finder checks every current shoe against how you run and shows your two best matches.

Find your perfect shoe