Altra Torin 8 vs Topo Phantom 4

Which Running Shoe Is Better?

Products

Altra Torin 8
Topo Phantom 4

Tested using Methodology v0.11

Updated May 26, 2026 06:23 PM

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Amazon

Tested using Methodology v0.11

Updated May 26, 2026 06:07 PM

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RoadRunnerSports.com
Altra Torin 8 Picture

Track

Topo Phantom 4 Picture

Track

Our Verdict

Altra Torin 8

Topo Phantom 4

The Altra Torin 8 and Topo Phantom 4 are running shoes that appeal to runners who dislike tapered toe boxes and want space for their toes to spread, but they get there with different paths. The Torin 8 leans into Altra’s zero-drop approach, keeping your foot level and encouraging a flatter, more natural stance that can feel closer to a minimalist shoe. The Phantom 4 keeps the same roomy forefoot idea but pairs it with a moderate 5 mm drop, so it feels more like a conventional daily trainer in how it rolls through transitions, just with a more accommodating front end.

 

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Variants

  • Torin 8 (Black - (Men - US 9))
  • Torin 8 (Black - (Women - US 7))
  • Phantom 4 (Black/White - (Men - US 9))
  • Phantom 4 (Black/White - (Women - US 7))

Main Differences for
Marathon Racing

Threshold 

0.10

Marathon Racing 
 

5.0
5.9

Heel Stack Height 
 

27.6 mm
37.1 mm

Forefoot Stack Height 
 

27.3 mm
30.4 mm

Forefoot Compression Energy Return 
 

6.0
3.7

Full Comparison

Design

Weight  

5.9
6.3

Right Shoe Weight Photo 
 

Compare High-Res
Altra Torin 8 Right Shoe Weight Photo
Compare High-Res
Topo Phantom 4 Right Shoe Weight Photo

Left Shoe Weight Photo 
 

Compare High-Res
Altra Torin 8 Left Shoe Weight Photo
Compare High-Res
Topo Phantom 4 Left Shoe Weight Photo

Weight 
 

263.8 g (9.30 oz)
254.3 g (8.97 oz)

Stack Heights 
 

Stack Height Photo 
 

Compare High-Res
Altra Torin 8 Stack Height Photo
Compare High-Res
Topo Phantom 4 Stack Height Photo

Heel Stack Height 
 

27.6 mm
37.1 mm

Forefoot Stack Height 
 

27.3 mm
30.4 mm

Heel-To-Toe Drop 
 

0.3 mm
6.7 mm

Advertised Heel-To-Toe Drop 
 

0.0 mm
5.0 mm

External Shape 
 

3D Model Full Shoe  

Preview 3D
Altra Torin 8 3D Model Full Shoe
Preview 3D
Topo Phantom 4 3D Model Full Shoe

Outsole Heel Width 
 

82 mm (3.2")
88 mm (3.5")

Outsole Arch Width 
 

77 mm (3.0")
82 mm (3.2")

Outsole Forefoot Width 
 

113 mm (4.4")
112 mm (4.4")

Heel Width-To-Stack Ratio 
 

2.97
2.37

Forefoot Width-To-Stack Ratio 
 

4.14
3.68

Internal Shape 
 

3D Model Internal  

Preview 3D
Altra Torin 8 3D Model Internal
Preview 3D
Topo Phantom 4 3D Model Internal

Internal Length 
 

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

Internal Heel Width 
 

68 mm (2.7")
67 mm (2.6")

Internal Forefoot Width 
 

98 mm (3.9")
97 mm (3.8")

Wide Sizing Available 
 

Yes
Yes

Forefoot Fit: Width 
 

9.4
7.8

Forefoot Width Photo 
 

Compare High-Res
Altra Torin 8 Forefoot Width Photo
Compare High-Res
Topo Phantom 4 Forefoot Width Photo

Ball-Of-Foot TTS Deviation 
 

3.1 mm (0.122")
5.7 mm (0.222")

Toe TTS Deviation 
 

2.2 mm (0.087")
9.1 mm (0.358")

Forefoot Fit: Height 
 

9.9
10

Forefoot Height Photo 
 

Compare High-Res
Altra Torin 8 Forefoot Height Photo
Compare High-Res
Topo Phantom 4 Forefoot Height Photo

Toe TTS Deviation 
 

-0.5 mm (-0.020")
0.7 mm (0.026")

Arch Fit: Width 
 

6.9
8.8

Arch Fit Photo 
 

Compare High-Res
Altra Torin 8 Arch Fit Photo
Compare High-Res
Topo Phantom 4 Arch Fit Photo

Arch Width TTS Deviation 
 

-4.7 mm (-0.185")
-2.2 mm (-0.085")

Length Fit 
 

10
10

Toe Clearance Photo 
 

Compare High-Res
Altra Torin 8 Toe Clearance Photo
Compare High-Res
Topo Phantom 4 Toe Clearance Photo

Heel Rocker Geometry 
 

7.1
8.7

Heel Rocker Photo 
 

Compare High-Res
Altra Torin 8 Heel Rocker Photo
Compare High-Res
Topo Phantom 4 Heel Rocker Photo

Heel Spring 
 

17 mm (0.7")
38 mm (1.5")

Heel Apex Position 
 

17.2%
20.3%

Heel Rocker Angle 
 

21.8°
32.3°

Forefoot Rocker Geometry 
 

5.7
8.0

Forefoot Rocker Photo 
 

Compare High-Res
Altra Torin 8 Forefoot Rocker Photo
Compare High-Res
Topo Phantom 4 Forefoot Rocker Photo

Toe Spring 
 

40 mm (1.6")
58 mm (2.3")

Toe Apex Position 
 

65.5%
62.8%

Forefoot Rocker Angle 
 

21.8°
27.8°

Other Features  

Other Features Photo 
 

Compare High-Res
Altra Torin 8 Other Features Photo
Compare High-Res
Topo Phantom 4 Other Features Photo

Tongue Gusset Type 
 

Non-gusseted
Non-gusseted

Plate 
 

None
None
Performance

Heel Compression Energy Return 
 

2.9
1.6

Heel Compression Video  

Heel Energy Return  

 Preview Graph
Altra Torin 8 Heel Energy Return
 Preview Graph
Topo Phantom 4 Heel Energy Return

Heel Energy Return 
 

69.4%
67.0%

Forefoot Compression Energy Return 
 

6.0
3.7

Forefoot Compression Video  

Forefoot Energy Return  

 Preview Graph
Altra Torin 8 Forefoot Energy Return
 Preview Graph
Topo Phantom 4 Forefoot Energy Return

Forefoot Energy Return 
 

73.4%
70.3%

Heel Cushioning 
 

4.7
7.1

Heel Cushioning Picture 
 

Compare High-Res
Altra Torin 8 Heel Cushioning Picture
Compare High-Res
Topo Phantom 4 Heel Cushioning Picture

Heel Cushioning  

 Preview Graph
Altra Torin 8 Heel Cushioning
 Preview Graph
Topo Phantom 4 Heel Cushioning

Energy Absorbed At 550N 
 

2.51 J
3.43 J

Energy Absorbed At 1100N 
 

6.40 J
8.73 J

Energy Absorbed At 1900N 
 

10.90 J
14.32 J

Forefoot Cushioning 
 

5.9
7.0

Forefoot Cushioning Picture 
 

Compare High-Res
Altra Torin 8 Forefoot Cushioning Picture
Compare High-Res
Topo Phantom 4 Forefoot Cushioning Picture

Forefoot Cushioning  

 Preview Graph
Altra Torin 8 Forefoot Cushioning
 Preview Graph
Topo Phantom 4 Forefoot Cushioning

Energy Absorbed At 800N 
 

3.69 J
4.52 J

Energy Absorbed At 1300N 
 

6.29 J
7.58 J

Energy Absorbed At 2050N 
 

9.41 J
10.75 J

Heel Firmness 
 

7.7
6.2

Heel Firmness  

 Preview Graph
Altra Torin 8 Heel Firmness
 Preview Graph
Topo Phantom 4 Heel Firmness

Firmness At 550N 
 

82.5 N/mm
54.0 N/mm

Firmness At 1100N 
 

161.5 N/mm
130.1 N/mm

Firmness At 1900N 
 

350.1 N/mm
282.7 N/mm

Forefoot Firmness 
 

8.8
8.5

Forefoot Firmness  

 Preview Graph
Altra Torin 8 Forefoot Firmness
 Preview Graph
Topo Phantom 4 Forefoot Firmness

Firmness At 800N 
 

138.8 N/mm
113.2 N/mm

Firmness At 1300N 
 

279.6 N/mm
252.5 N/mm

Firmness At 2050N 
 

485.0 N/mm
498.8 N/mm

Forefoot Long Run Cushioning 
 

5.5
5.5

Forefoot Long Run Cushioning  

 Preview Graph
Altra Torin 8 Forefoot Long Run Cushioning
 Preview Graph
Topo Phantom 4 Forefoot Long Run Cushioning

Energy Absorbed At 10km 
 

6.23 J
5.98 J

Energy Absorbed At 20km 
 

5.97 J
5.87 J

Energy Absorbed At 30km 
 

5.79 J
5.80 J

Energy Absorbed At 40km 
 

5.66 J
5.74 J

Rocker Stiffness 
 

7.6
5.6

Forefoot Rocker Stiffness Video  

Forefoot Rocker Stiffness Graph  

 Preview Graph
Altra Torin 8 Forefoot Rocker Stiffness Graph
 Preview Graph
Topo Phantom 4 Forefoot Rocker Stiffness Graph

Force To Flatten The Rocker 
 

105 N
53 N

Forefoot Bending Energy Return 
 

5.8
4.6

Forefoot Bending Video  

Forefoot Bending Energy Return  

 Preview Graph
Altra Torin 8 Forefoot Bending Energy Return
 Preview Graph
Topo Phantom 4 Forefoot Bending Energy Return

Forefoot Bending Energy Return 
 

59.6%
55.4%

Forefoot Bending Stiffness 
 

7.8
5.8

Forefoot Bending Resistance Picture 
 

Compare High-Res
Altra Torin 8 Forefoot Bending Resistance Picture
Compare High-Res
Topo Phantom 4 Forefoot Bending Resistance Picture

Forefoot Bending Resistance  

 Preview Graph
Altra Torin 8 Forefoot Bending Resistance
 Preview Graph
Topo Phantom 4 Forefoot Bending Resistance

Forefoot Bending Stiffness 
 

16.8 N/mm
8.4 N/mm

Forefoot Bending Force 
 

314 N
219 N

Altra Torin 8

Topo Phantom 4

Comments

  1. Comparison

Altra Torin 8 vs Topo Phantom 4: Main Discussion

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