ASICS MAGIC SPEED 4 vs adidas Adizero Boston 13

Which Running Shoe Is Better?

Products

ASICS MAGIC SPEED 4 
early access
adidas Adizero Boston 13

Tested using Methodology v0.9

Updated Nov 21, 2025 04:42 PM

This review is in Early access

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Amazon.com

Tested using Methodology v0.9

Updated Oct 27, 2025 04:34 PM

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Adidas.com

Our Verdict

ASICS MAGIC SPEED 4

adidas Adizero Boston 13

Full comparison details regarding individual product score sets can be found in the section below
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Variants

  • MAGIC SPEED 4 (Purple Spectrum/Pale Pink - (Women - US 7))
  • MAGIC SPEED 4 (Safety Yellow/Black - (Women - US 7))
  • MAGIC SPEED 4 (Soothing Sea/Black - (Men - US 9))
  • MAGIC SPEED 4 (Soothing Sea/Black - (Women - US 7))
  • Adizero Boston 13 (Black/Cloud White/Grey - (Men - US 9))
  • Adizero Boston 13 (Chalk White/Gold Metallic/Orange Tint - (Women - US 7))
  • Adizero Boston 13 (Cloud White/Black/Lucid Red - (Men - US 9))
  • Adizero Boston 13 (Cloud White/Core Black/Lucid Red - (Men - US 9))
  • Adizero Boston 13 (Cloud White/Core Black/Lucid Red - (Women - US 7))
  • Adizero Boston 13 (Cloud White/Matte Silver/Dash Grey - (Women - US 7))
  • Adizero Boston 13 (Cloud White/Pure Teal/Grey - (Men - US 9))
  • Adizero Boston 13 (Cloud White/Pure Teal/Grey - (Women - US 7))
  • Adizero Boston 13 (Core Black/Cloud White/Grey Five - (Men - US 9))
  • Adizero Boston 13 (Flash Aqua/Cloud White/Lucid Lemon - (Men - US 9))
  • Adizero Boston 13 (Halo Silver/Silver Metallic/Blue - (Women - US 7))
  • Adizero Boston 13 (Lucid Blue/Lime Burst/Black - (Men - US 9))
  • Adizero Boston 13 (Lucid Lemon/Black/Halo Silver - (Men - US 9))
  • Adizero Boston 13 (Semi Flash Aqua/Zero Metalic/Lucid Lemon - (Women - US 7))
  • Adizero Boston 13 (White/Matte Silver/Dash Grey - (Women - US 7))

Main Differences for
Marathon Racing

Threshold 

0.10

Marathon Racing 
 

0.0
7.2
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Full Comparison

Design

Weight  

N/A
6.3

Right Shoe Weight Photo 
 

ASICS MAGIC SPEED 4 Right Shoe Weight Photo Sample

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adidas Adizero Boston 13 Right Shoe Weight Photo

Left Shoe Weight Photo 
 

ASICS MAGIC SPEED 4 Left Shoe Weight Photo Sample

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adidas Adizero Boston 13 Left Shoe Weight Photo

Weight 
 

Lock g (Lock oz)
252.2 g (8.90 oz)
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Stack Heights 
 

Stack Height Photo 
 

ASICS MAGIC SPEED 4 Stack Height Photo Sample

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adidas Adizero Boston 13 Stack Height Photo

Heel Stack Height 
 

Lock mm
35.9 mm

Forefoot Stack Height 
 

Lock mm
29.1 mm

Heel-To-Toe Drop 
 

Lock mm
6.8 mm

Advertised Heel-To-Toe Drop 
 

Lock mm
6.0 mm

External Shape 
 

3D Model Full Shoe  

ASICS MAGIC SPEED 4 3D Model Full Shoe Sample

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adidas Adizero Boston 13 3D Model Full Shoe

Outsole Heel Width 
 

Lock mm (Lock")
83 mm (3.3")

Outsole Arch Width 
 

Lock mm (Lock")
62 mm (2.4")

Outsole Forefoot Width 
 

Lock mm (Lock")
122 mm (4.8")

Heel Width-To-Stack Ratio 
 

Lock
2.31

Forefoot Width-To-Stack Ratio 
 

Lock
4.19
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Internal Shape 
 

3D Model Internal  

ASICS MAGIC SPEED 4 3D Model Internal Sample

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adidas Adizero Boston 13 3D Model Internal

Internal Length 
 

Lock mm (Lock")
277 mm (10.9")

Internal Heel Width 
 

Lock mm (Lock")
63 mm (2.5")

Internal Forefoot Width 
 

Lock mm (Lock")
97 mm (3.8")

Wide Sizing Available 
 

Locked
No
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Other Features  

Other Features Photo 
 

ASICS MAGIC SPEED 4 Other Features Photo Sample

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adidas Adizero Boston 13 Other Features Photo

Tongue Gusset Type 
 

Locked
Semi-gusseted

Plate 
 

Locked
Carbon Fiber Rods
Performance

Heel Energy Return 
 

N/A
6.7

Heel Compression Video  

ASICS MAGIC SPEED 4 Heel Compression Video Sample

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Heel Energy Return  

ASICS MAGIC SPEED 4 Heel Energy Return Sample

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Heel Energy Return 
 

Lock%
75.1%
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Forefoot Energy Return 
 

N/A
8.0

Forefoot Compression Video  

ASICS MAGIC SPEED 4 Forefoot Compression Video Sample

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Forefoot Energy Return  

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Forefoot Energy Return 
 

Lock%
80.8%
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Heel Cushioning 
 

N/A
5.9

Heel Cushioning Picture 
 

ASICS MAGIC SPEED 4 Heel Cushioning Picture Sample

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Heel Cushioning  

ASICS MAGIC SPEED 4 Heel Cushioning Sample

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Energy Absorbed At 550N 
 

Lock J
2.76 J

Energy Absorbed At 1100N 
 

Lock J
7.59 J

Energy Absorbed At 1900N 
 

Lock J
13.09 J
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Forefoot Cushioning 
 

N/A
6.6

Forefoot Cushioning Picture 
 

ASICS MAGIC SPEED 4 Forefoot Cushioning Picture Sample

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adidas Adizero Boston 13 Forefoot Cushioning Picture

Forefoot Cushioning  

ASICS MAGIC SPEED 4 Forefoot Cushioning Sample

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Energy Absorbed At 800N 
 

Lock J
4.14 J

Energy Absorbed At 1300N 
 

Lock J
7.08 J

Energy Absorbed At 2050N 
 

Lock J
10.17 J
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Heel Firmness 
 

N/A
6.8

Heel Firmness  

ASICS MAGIC SPEED 4 Heel Firmness Sample

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Firmness At 550N 
 

Lock N/mm
65.5 N/mm

Firmness At 1100N 
 

Lock N/mm
133.0 N/mm

Firmness At 1900N 
 

Lock N/mm
299.2 N/mm
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Forefoot Firmness 
 

N/A
8.7

Forefoot Firmness  

ASICS MAGIC SPEED 4 Forefoot Firmness Sample

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Firmness At 800N 
 

Lock N/mm
120.7 N/mm

Firmness At 1300N 
 

Lock N/mm
257.3 N/mm

Firmness At 2050N 
 

Lock N/mm
541.9 N/mm
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Forefoot Long Run Cushioning 
 

N/A
5.9

Forefoot Long Run Cushioning  

ASICS MAGIC SPEED 4 Forefoot Long Run Cushioning Sample

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Energy Absorbed At 10km 
 

Lock J
6.47 J

Energy Absorbed At 20km 
 

Lock J
6.30 J

Energy Absorbed At 30km 
 

Lock J
6.21 J

Energy Absorbed At 40km 
 

Lock J
6.12 J

ASICS MAGIC SPEED 4

adidas Adizero Boston 13

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