ShoeGeometry

Nike Pegasus 42 vs Saucony Endorphin Azura

Two popular shoes in the same category, compared on measured geometry. Each cell carries a provenance badge; open a shoe for sources.

heel boneNike Pegasus 42: heel 37 mm, forefoot 27 mm (drop 10 mm); toe rocker 34 % of length, radius 47 % of length; heel bevel 10 % of length, 20 mm high at the back, ending behind the heel bone (only the back edge is rounded).Nike Pegasus 42: toe rocker 34 % of lengthSaucony Endorphin Azura: heel 40 mm, forefoot 32 mm (drop 8 mm); toe rocker 34 % of length, radius 36 % of length; heel bevel 12 % of length, 29 mm high at the back, ending about under the heel bone.Saucony Endorphin Azura: toe rocker 34 % of length
  • Nike Pegasus 4237/27 mm · toe rocker 34 % · heel bevel 10 %
  • Saucony Endorphin Azura40/32 mm · toe rocker 34 % · heel bevel 12 %
Illustrative profiles, not photographs: drawn from published stack heights and photo estimates of the unloaded shoes on a common length (300 mm), heels aligned, toe to the left; dots mark where each toe rocker starts; the dotted vertical line is under the heel bone (12 % of length), so a heel curve reaching past it is a bevel in front of the heel bone. Dotted lines use typical values where a shoe has no measurement. Exact values are in the table below.

Which suits you

If you wantPickBecause
A smoother roll at toe-offSaucony Endorphin Azura33.9 vs 33.7 % toe rocker; 33 vs 45.4 mm toe tip
More cushioning under the heelSaucony Endorphin Azura37 vs 40 mm heel stack
More under the forefootSaucony Endorphin Azura27 vs 32 mm forefoot stack
A lower dropSaucony Endorphin Azura10 vs 8 mm drop
A stiffer, snappier forefootSaucony Endorphin Azura35 vs 45 /100 stiffness
A firmer, more stable feelSaucony Endorphin Azura66 vs 76 /100 firmness
A wider base under the forefootSaucony Endorphin Azura112.3 vs 123.4 mm forefoot base

From the values below, with differences inside measurement noise shown as about the same. This describes the shoes, not what is right for your feet; comfort in the first few runs decides.

MetricNike Pegasus 42
Daily trainer · Road
Saucony Endorphin Azura
Daily trainer · Road
Heel-to-toe drop10 mmStated8 mmStated
Heel stack37 mmStated40 mmStated
Forefoot stack27 mmStated32 mmStated
Weight300 gStated241 gStated
Toe rocker34 %est.34 %est.
Rocker radius47 %est.36 %est.
Rocker rise angle24 degest.32 degest.
Rocker angle at toe53 degest.64 degest.
Toe tip over ground33 mm*est.45 mm*est.
Visible rocker lift onset79 %est.77.3 %est.
Toe spring (relative)15.3 %est.21.1 %est.
Heel bevel length10 %*est.11.8 %*est.
Heel bevel height20 mm*est.29 mm*est.
Midsole width (forefoot)112.3 mmMeasured123.4 mmMeasured
Midsole width (heel)88.1 mmMeasured91.6 mmMeasured
Toe box shape73 %*est.—
Interior forefoot width96.5 mmMeasured94 mmMeasured
Toebox width72.3 mmMeasured72.2 mmMeasured
Longitudinal stiffness35Derived45Derived
Midsole firmness66Derived76Derived
PlateNo plateNo plate
Primary foamReactX + ZoomX, full-length Air Zoom unitPWRRUN PB
List price$145$150

Key differences

  • Nike Pegasus 42's heel-to-toe drop is 10 mm, 2 mm higher than Saucony Endorphin Azura's 8 mm.
  • Nike Pegasus 42's heel stack is 37 mm, 3 mm thinner than Saucony Endorphin Azura's 40 mm.
  • Nike Pegasus 42's forefoot stack is 27 mm, 5 mm thinner than Saucony Endorphin Azura's 32 mm.
  • Nike Pegasus 42's weight is 300 g, 59 g heavier than Saucony Endorphin Azura's 241 g.
  • Toe rocker is about the same: 34 % of length for Nike Pegasus 42, 34 % of length for Saucony Endorphin Azura.

Read more about both shoes

We measure the shape. For how they feel over many miles, and for lab tests of cushioning, grip and fit:

Nike Pegasus 42

Saucony Endorphin Azura

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