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Tested using Methodology v0.16
Updated Sep 23, 2026 01:17 PM
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Amazon
Tested using Methodology v0.12
Updated Sep 15, 2026 06:17 PM
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Amazon
Heel Stack Height
37.4 mm
Weight
282.6 g (9.97 oz)
Heel-To-Toe Drop
10.7 mm
Plate
None
Heel Stack Height
37.9 mm
Weight
293.9 g (10.37 oz)
Heel-To-Toe Drop
8.5 mm
Plate
None
Our Verdict
Nike Pegasus 42
Nike Structure 26
The Nike Pegasus 42 is a better shoe for most runners than the Nike Structure 26. The Pegasus 42 is lighter and feels a bit more lively underfoot, and it has a classic ride that can accommodate most runners. The Structure 26 is a dedicated stability shoe that has features like raised sidewalls designed to prevent your foot from rolling side-to-side. If you have pronation concerns, it's the better shoe, but if not, it could feel intrusive.
Variants
- Pegasus 42 (Black/Black/Anthracite - (Men - US 9))
- Pegasus 42 (Black/Black/Anthracite - (Women - US 7))
- Structure 26 (Black/Cool Grey/Metallic Silver/White - (Men - US 9))
- Structure 26 (Black/Iron Grey/Black - (Men - US 9))
Main Differences for
Half/Full Marathon Racing
Half/Full Marathon Racing
Threshold
Half/Full Marathon Racing
5.6
5.9
Forefoot Stack Height
26.7 mm
29.4 mm
Weight
5.1
4.6
Forefoot Bending Energy Return
4.6
6.2
Forefoot Compression Energy Return
5.0
3.5
Outsole Arch Width
63 mm (2.5")
81 mm (3.2")
Heel Stack Height
37.4 mm
37.9 mm
Full Comparison
Design
Weight
5.1
4.6
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
282.6 g (9.97 oz)
293.9 g (10.37 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
37.4 mm
37.9 mm
Forefoot Stack Height
26.7 mm
29.4 mm
Heel-To-Toe Drop
10.7 mm
8.5 mm
Advertised Heel-To-Toe Drop
10.0 mm
10.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
89 mm (3.5")
93 mm (3.7")
Outsole Arch Width
63 mm (2.5")
81 mm (3.2")
Outsole Forefoot Width
111 mm (4.4")
114 mm (4.5")
Heel Width-To-Stack Ratio
2.37
2.46
Forefoot Width-To-Stack Ratio
4.15
3.88
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
281 mm (11.1")
277 mm (10.9")
Internal Heel Width
63 mm (2.5")
66 mm (2.6")
Internal Forefoot Width
92 mm (3.6")
92 mm (3.6")
Wide Sizing Available
Yes
Yes
Forefoot Fit: Width
8.6
9.3
Forefoot Width Photo
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Ball-Of-Foot TTS Deviation
3.3 mm (0.131")
-1.3 mm (-0.050")
Toe TTS Deviation
-3.3 mm (-0.131")
-2.3 mm (-0.092")
Forefoot Fit: Height
4.9
6.1
Forefoot Height Photo
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Toe TTS Deviation
-6.0 mm (-0.234")
-4.7 mm (-0.183")
Arch Fit: Width
9.6
7.9
Arch Fit Photo
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Arch Width TTS Deviation
-1.0 mm (-0.039")
-3.4 mm (-0.134")
Length Fit
10
5.0
Toe Clearance Photo
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Heel Rocker Geometry
7.4
6.9
Heel Rocker Photo
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Heel Spring
20 mm (0.8")
18 mm (0.7")
Heel Apex Position
19.0%
15.2%
Heel Rocker Angle
20.0°
21.8°
Forefoot Rocker Geometry
5.8
4.6
Forefoot Rocker Photo
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Toe Spring
40 mm (1.6")
34 mm (1.3")
Toe Apex Position
62.1%
67.7%
Forefoot Rocker Angle
20.0°
19.5°
Foam
Primary Foam Picture
Secondary Foam Picture
Primary Foam Name
ReactX
Primary Foam Type
TPEE
Secondary Foam Name
No Secondary Foam
Secondary Foam Type
No Secondary Foam
Laces
Laces Picture
Lace Type
Flat
Width
6.0 mm (0.2")
Thickness
1.4 mm (0.1")
Stretch
7.5%
Breathability
6.0
Breathability Video
Upper Breathability
Upper Microscope Photo
Time-To-Dry
5.7
Time-To-Dry Timelapse
Time-To-Dry Graph
Preview Graph
Time To 30% Dry
9.3 hrs
Time To 70% Dry
23.3 hrs
Time To Dry
31.7 hrs
Water Absorption
7.1
Dry Weight Photo
Wet Weight Photo
Water Absorbed
45.1%
Other Features
Other Features Photo
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Tongue Gusset Type
Fully-gusseted
Semi-gusseted
Plate
None
None
Performance
Heel Compression Energy Return
3.8
2.9
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
70.4%
69.3%
Forefoot Compression Energy Return
5.0
3.5
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
71.8%
70.1%
Heel Cushioning
6.7
6.9
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
3.07 J
2.89 J
Energy Absorbed At 1100N
8.42 J
8.48 J
Energy Absorbed At 1900N
14.14 J
15.38 J
Forefoot Cushioning
5.3
5.5
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
3.60 J
3.33 J
Energy Absorbed At 1300N
5.69 J
5.78 J
Energy Absorbed At 2050N
7.87 J
8.98 J
Heel Firmness
8.7
8.7
Heel Firmness Graph
Preview Graph
Preview Graph
Firmness At 550N
48.3 N/mm
51.2 N/mm
Firmness At 1100N
60.6 N/mm
61.9 N/mm
Firmness At 1900N
85.9 N/mm
84.3 N/mm
Forefoot Firmness
9.8
9.7
Forefoot Firmness Graph
Preview Graph
Preview Graph
Firmness At 800N
84.0 N/mm
83.7 N/mm
Firmness At 1300N
112.3 N/mm
108.8 N/mm
Firmness At 2050N
159 N/mm
147 N/mm
Forefoot Long Run Cushioning
4.8
4.8
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
5.28 J
5.35 J
Energy Absorbed At 20km
5.14 J
5.21 J
Energy Absorbed At 30km
5.07 J
5.12 J
Energy Absorbed At 40km
5.02 J
5.07 J
Rocker Stiffness
5.0
4.1
Forefoot Rocker Stiffness Video
Forefoot Rocker Stiffness Graph
Preview Graph
Preview Graph
Force To Flatten The Rocker
42 N
31 N
Forefoot Bending Energy Return
4.6
6.2
Forefoot Bending Video
Forefoot Bending Energy Return
Preview Graph
Preview Graph
Forefoot Bending Energy Return
55.5%
61.2%
Forefoot Bending Stiffness
7.1
7.3
Forefoot Bending Resistance Picture
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Forefoot Bending Resistance
Preview Graph
Preview Graph
Forefoot Bending Stiffness
12.5 N/mm
13.1 N/mm
Forefoot Bending Force
278 N
289 N
Heel Compression Depth
5.3
Heel Compression Graph
Preview Graph
Heel Compression At 550N
11.4 mm
Heel Compression At 1100N
18.2 mm
Heel Compression At 1900N
22.1 mm
Forefoot Compression Depth
4.0
Forefoot Compression Graph
Preview Graph
Forefoot Compression At 800N
9.5 mm
Forefoot Compression At 1300N
11.6 mm
Forefoot Compression At 2050N
12.9 mm
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Nike Pegasus 42
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Nike Pegasus 42 vs Nike Structure 26: Main Discussion
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