ASICS MEGABLAST vs R.A.D UFO

Which Running Shoe Is Better?

Products

ASICS MEGABLAST
R.A.D UFO

Tested using Methodology v0.11

Updated Apr 30, 2026 05:01 PM

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Amazon

Tested using Methodology v0.11

Updated Apr 30, 2026 06:18 PM

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R.A.D
ASICS MEGABLAST Picture

Track

R.A.D UFO Picture

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  1. Recommended in 5 articles:
  2. Running Shoes
  3. For Men
  4. Women
  5. 2

Our Verdict

ASICS MEGABLAST

R.A.D UFO

The R.A.D UFO and ASICS MEGABLAST are both high-stack, highly cushioned, unplated trainers with a similar overall geometry, but they differ on a few key elements. The ASICS MEGABLAST comes in lighter and feels more protective over long miles, with a softer midsole that creates a more pillowy, more sink-in sensation underfoot. The R.A.D UFO feels more stable laterally, and its midsole tuning comes across as more balanced in firmness, which helps it feel less unpredictable as you move through the stride. They also differ up top: the R.A.D uses a more substantial, structured upper that adds to the secure feel, while the ASICS leans more performance-oriented with a lighter, more minimal upper.

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Variants

  • MEGABLAST (Edo Purple/Black - (Men - US 9))
  • MEGABLAST (Edo Purple/Black - (Women - US 7))
  • UFO (Highlighter Pink - (Men - US 9))
  • UFO (Racing Blue - (Women - US 7))

Main Differences for
Marathon Racing

Threshold 

0.10

Marathon Racing 
 

7.9
7.7

Weight  

7.2
6.5

Full Comparison

Design

Weight  

7.2
6.5

Right Shoe Weight Photo 
 

Compare High-Res
ASICS MEGABLAST Right Shoe Weight Photo
Compare High-Res
R.A.D UFO Right Shoe Weight Photo

Left Shoe Weight Photo 
 

Compare High-Res
ASICS MEGABLAST Left Shoe Weight Photo
Compare High-Res
R.A.D UFO Left Shoe Weight Photo

Weight 
 

229.9 g (8.11 oz)
247.4 g (8.73 oz)

Stack Heights 
 

Stack Height Photo 
 

Compare High-Res
ASICS MEGABLAST Stack Height Photo
Compare High-Res
R.A.D UFO Stack Height Photo

Heel Stack Height 
 

44.6 mm
43.4 mm

Forefoot Stack Height 
 

35.9 mm
35.3 mm

Heel-To-Toe Drop 
 

8.7 mm
8.1 mm

Advertised Heel-To-Toe Drop 
 

8.0 mm
8.0 mm

External Shape 
 

3D Model Full Shoe  

Preview 3D
ASICS MEGABLAST 3D Model Full Shoe
Preview 3D
R.A.D UFO 3D Model Full Shoe

Outsole Heel Width 
 

96 mm (3.8")
100 mm (3.9")

Outsole Arch Width 
 

80 mm (3.2")
81 mm (3.2")

Outsole Forefoot Width 
 

119 mm (4.7")
119 mm (4.7")

Heel Width-To-Stack Ratio 
 

2.15
2.30

Forefoot Width-To-Stack Ratio 
 

3.31
3.37

Internal Shape 
 

3D Model Internal  

Preview 3D
ASICS MEGABLAST 3D Model Internal
Preview 3D
R.A.D UFO 3D Model Internal

Internal Length 
 

282 mm (11.1")
279 mm (11.0")

Internal Heel Width 
 

66 mm (2.6")
65 mm (2.6")

Internal Forefoot Width 
 

94 mm (3.7")
91 mm (3.6")

Wide Sizing Available 
 

No
No

Forefoot Fit: Width 
 

7.9
8.6

Forefoot Width Photo 
 

Compare High-Res
ASICS MEGABLAST Forefoot Width Photo
Compare High-Res
R.A.D UFO Forefoot Width Photo

Ball-Of-Foot TTS Deviation 
 

-3.6 mm (-0.140")
0.1 mm (0.004")

Toe TTS Deviation 
 

-2.9 mm (-0.115")
-5.3 mm (-0.209")

Forefoot Fit: Height 
 

8.1
2.7

Forefoot Height Photo 
 

Compare High-Res
ASICS MEGABLAST Forefoot Height Photo
Compare High-Res
R.A.D UFO Forefoot Height Photo

Toe TTS Deviation 
 

-2.4 mm (-0.093")
-8.5 mm (-0.335")

Arch Fit: Width 
 

8.0
9.8

Arch Fit Photo 
 

Compare High-Res
ASICS MEGABLAST Arch Fit Photo
Compare High-Res
R.A.D UFO Arch Fit Photo

Arch Width TTS Deviation 
 

-3.3 mm (-0.130")
2.5 mm (0.098")

Length Fit 
 

10
10

Toe Clearance Photo 
 

Compare High-Res
ASICS MEGABLAST Toe Clearance Photo
Compare High-Res
R.A.D UFO Toe Clearance Photo

Heel Rocker Geometry 
 

8.4
7.2

Heel Rocker Photo 
 

Compare High-Res
ASICS MEGABLAST Heel Rocker Photo
Compare High-Res
R.A.D UFO Heel Rocker Photo

Heel Spring 
 

30 mm (1.2")
27 mm (1.1")

Heel Apex Position 
 

21.7%
34.7%

Heel Rocker Angle 
 

24.8°
14.7°

Forefoot Rocker Geometry 
 

7.2
7.3

Forefoot Rocker Photo 
 

Compare High-Res
ASICS MEGABLAST Forefoot Rocker Photo
Compare High-Res
R.A.D UFO Forefoot Rocker Photo

Toe Spring 
 

50 mm (2.0")
50 mm (2.0")

Toe Apex Position 
 

68.3%
56.2%

Forefoot Rocker Angle 
 

27.8°
21.0°

Other Features  

Other Features Photo 
 

Compare High-Res
ASICS MEGABLAST Other Features Photo
Compare High-Res
R.A.D UFO Other Features Photo

Tongue Gusset Type 
 

Fully-gusseted
Fully-gusseted

Plate 
 

None
None
Performance

Heel Compression Energy Return 
 

8.4
8.1

Heel Compression Video  

Heel Energy Return  

 Preview Graph
ASICS MEGABLAST Heel Energy Return
 Preview Graph
R.A.D UFO Heel Energy Return

Heel Energy Return 
 

82.9%
81.4%

Forefoot Compression Energy Return 
 

8.3
8.4

Forefoot Compression Video  

Forefoot Energy Return  

 Preview Graph
ASICS MEGABLAST Forefoot Energy Return
 Preview Graph
R.A.D UFO Forefoot Energy Return

Forefoot Energy Return 
 

82.8%
83.1%

Heel Cushioning 
 

9.3
8.6

Heel Cushioning Picture 
 

Compare High-Res
ASICS MEGABLAST Heel Cushioning Picture
Compare High-Res
R.A.D UFO Heel Cushioning Picture

Heel Cushioning  

 Preview Graph
ASICS MEGABLAST Heel Cushioning
 Preview Graph
R.A.D UFO Heel Cushioning

Energy Absorbed At 550N 
 

4.35 J
4.19 J

Energy Absorbed At 1100N 
 

12.12 J
10.28 J

Energy Absorbed At 1900N 
 

21.19 J
17.45 J

Forefoot Cushioning 
 

9.4
8.5

Forefoot Cushioning Picture 
 

Compare High-Res
ASICS MEGABLAST Forefoot Cushioning Picture
Compare High-Res
R.A.D UFO Forefoot Cushioning Picture

Forefoot Cushioning  

 Preview Graph
ASICS MEGABLAST Forefoot Cushioning
 Preview Graph
R.A.D UFO Forefoot Cushioning

Energy Absorbed At 800N 
 

6.16 J
5.53 J

Energy Absorbed At 1300N 
 

11.21 J
9.27 J

Energy Absorbed At 2050N 
 

16.62 J
13.32 J

Heel Firmness 
 

3.8
5.0

Heel Firmness  

 Preview Graph
ASICS MEGABLAST Heel Firmness
 Preview Graph
R.A.D UFO Heel Firmness

Firmness At 550N 
 

41.2 N/mm
47.8 N/mm

Firmness At 1100N 
 

80.3 N/mm
106.0 N/mm

Firmness At 1900N 
 

190.4 N/mm
221.1 N/mm

Forefoot Firmness 
 

6.0
7.8

Forefoot Firmness  

 Preview Graph
ASICS MEGABLAST Forefoot Firmness
 Preview Graph
R.A.D UFO Forefoot Firmness

Firmness At 800N 
 

69.2 N/mm
95.9 N/mm

Firmness At 1300N 
 

141.0 N/mm
199.4 N/mm

Firmness At 2050N 
 

308.6 N/mm
410.2 N/mm

Forefoot Long Run Cushioning 
 

8.9
8.2

Forefoot Long Run Cushioning  

 Preview Graph
ASICS MEGABLAST Forefoot Long Run Cushioning
 Preview Graph
R.A.D UFO Forefoot Long Run Cushioning

Energy Absorbed At 10km 
 

10.19 J
8.97 J

Energy Absorbed At 20km 
 

9.98 J
8.84 J

Energy Absorbed At 30km 
 

9.84 J
8.75 J

Energy Absorbed At 40km 
 

9.74 J
8.69 J

Rocker Stiffness 
 

7.5
5.9

Forefoot Rocker Stiffness Video  

Forefoot Rocker Stiffness Graph  

 Preview Graph
ASICS MEGABLAST Forefoot Rocker Stiffness Graph
 Preview Graph
R.A.D UFO Forefoot Rocker Stiffness Graph

Force To Flatten The Rocker 
 

99 N
58 N

Forefoot Bending Energy Return 
 

7.9
8.1

Forefoot Bending Video  

Forefoot Bending Energy Return  

 Preview Graph
ASICS MEGABLAST Forefoot Bending Energy Return
 Preview Graph
R.A.D UFO Forefoot Bending Energy Return

Forefoot Bending Energy Return 
 

70.9%
72.3%

Forefoot Bending Stiffness 
 

7.8
5.8

Forefoot Bending Resistance Picture 
 

Compare High-Res
ASICS MEGABLAST Forefoot Bending Resistance Picture
Compare High-Res
R.A.D UFO Forefoot Bending Resistance Picture

Forefoot Bending Resistance  

 Preview Graph
ASICS MEGABLAST Forefoot Bending Resistance
 Preview Graph
R.A.D UFO Forefoot Bending Resistance

Forefoot Bending Stiffness 
 

16.1 N/mm
8.1 N/mm

Forefoot Bending Force 
 

316 N
221 N

ASICS MEGABLAST

R.A.D UFO

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