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adidas Adizero Pacer vs Questar 4

Which Running Shoe Is Better?

    Top
    Main Differences
    Design
      WeightStack HeightsExternal ShapeInternal ShapeForefoot Fit: WidthForefoot Fit: HeightArch Fit: WidthLength FitHeel Rocker GeometryForefoot Rocker GeometryFoamLacesOther Features
    Performance
      Heel Compression Energy ReturnForefoot Compression Energy ReturnHeel CushioningForefoot CushioningHeel FirmnessForefoot FirmnessForefoot Long Run CushioningRocker StiffnessForefoot Bending Energy ReturnForefoot Bending StiffnessHeel Compression DepthForefoot Compression Depth
    Comments

Products

adidas Adizero Pacer
adidas Questar 4 
early access

Tested using Methodology v0.14

Updated Jul 30, 2026 03:18 PM

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Tested using Methodology v0.15

Updated Aug 03, 2026 10:40 AM

This review is in Early access

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adidas Adizero Pacer Picture

Track

adidas Questar 4 Picture

Track

Heel Stack Height
36.7 mm
Weight
255.0 g (8.99 oz)
Heel-To-Toe Drop
6.5 mm
Plate
None
Heel Stack Height
38.2 mm
Weight
305.5 g (10.78 oz)
Heel-To-Toe Drop
7.0 mm
Plate
None
  1. Recommended in 4 articles:
  2. Running Shoes
  3. For Men
  4. Marathon
  5. 1

Our Verdict

adidas Adizero Pacer

adidas Questar 4

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

GIFT THIS COMPARISON

0 

Variants

  • Adizero Pacer (Black/White/Carbon - (Men - US 9))
  • Adizero Pacer (Alumina/Arctic Fusion/White - (Men - US 9))
  • Questar 4 (Cloud White/Iron Metallic/Lucid Tangerine - (Men - US 9))

Review

See adidas Adizero Pacer Review
See adidas Questar 4 Review
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Main Differences for
Half/Full Marathon Racing

Threshold 

0.10

Half/Full Marathon Racing 
 

5.8
0.0

Heel Stack Height 
 

36.7 mm
Lock mm

Full Comparison

Design

Weight  

6.2
N/A

Right Shoe Weight Photo  

adidas Adizero Pacer Right Shoe Weight Photo
adidas Questar 4 Right Shoe Weight Photo Sample

SAMPLE

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for pictures & test results

Left Shoe Weight Photo  

adidas Adizero Pacer Left Shoe Weight Photo
adidas Questar 4 Left Shoe Weight Photo Sample

SAMPLE

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for pictures & test results

Weight 
 

255.0 g (8.99 oz)
Lock g (Lock oz)

Stack Heights 
 

Stack Height Photo  

adidas Adizero Pacer Stack Height Photo
adidas Questar 4 Stack Height Photo Sample

SAMPLE

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for pictures & test results

Heel Stack Height 
 

36.7 mm
Lock mm

Forefoot Stack Height 
 

30.2 mm
Lock mm

Heel-To-Toe Drop 
 

6.5 mm
Lock mm

Advertised Heel-To-Toe Drop 
 

6.0 mm
Lock mm

External Shape 
 

3D Model Full Shoe  

Preview 3D
adidas Adizero Pacer 3D Model Full Shoe
adidas Questar 4 3D Model Full Shoe Sample

SAMPLE

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for pictures & test results

Outsole Heel Width 
 

85 mm (3.3")
Lock mm (Lock")

Outsole Arch Width 
 

67 mm (2.6")
Lock mm (Lock")

Outsole Forefoot Width 
 

115 mm (4.5")
Lock mm (Lock")

Heel Width-To-Stack Ratio 
 

2.32
Lock

Forefoot Width-To-Stack Ratio 
 

3.81
Lock

Internal Shape 
 

3D Model Internal  

Preview 3D
adidas Adizero Pacer 3D Model Internal
adidas Questar 4 3D Model Internal Sample

SAMPLE

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Internal Length 
 

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

Internal Heel Width 
 

61 mm (2.4")
Lock mm (Lock")

Internal Forefoot Width 
 

94 mm (3.7")
Lock mm (Lock")

Wide Sizing Available 
 

No
Locked

Forefoot Fit: Width 
 

9.7
N/A

Forefoot Width Photo  

adidas Adizero Pacer Forefoot Width Photo
adidas Questar 4 Forefoot Width Photo Sample

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Ball-Of-Foot TTS Deviation 
 

0.3 mm (0.012")
Lock mm (Lock")

Toe TTS Deviation 
 

-1.8 mm (-0.070")
Lock mm (Lock")

Forefoot Fit: Height 
 

6.5
N/A

Forefoot Height Photo  

adidas Adizero Pacer Forefoot Height Photo
adidas Questar 4 Forefoot Height Photo Sample

SAMPLE

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Toe TTS Deviation 
 

-4.1 mm (-0.163")
Lock mm (Lock")

Arch Fit: Width 
 

10
N/A

Arch Fit Photo  

adidas Adizero Pacer Arch Fit Photo
adidas Questar 4 Arch Fit Photo Sample

SAMPLE

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Arch Width TTS Deviation 
 

0.5 mm (0.019")
Lock mm (Lock")

Length Fit 
 

10
N/A

Toe Clearance Photo  

adidas Adizero Pacer Toe Clearance Photo
adidas Questar 4 Toe Clearance Photo Sample

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Heel Rocker Geometry 
 

6.4
N/A

Heel Rocker Photo  

adidas Adizero Pacer Heel Rocker Photo
adidas Questar 4 Heel Rocker Photo Sample

SAMPLE

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Heel Spring 
 

17 mm (0.7")
Lock mm (Lock")

Heel Apex Position 
 

20.3%
Lock%

Heel Rocker Angle 
 

15.8°
Lock°

Forefoot Rocker Geometry 
 

5.9
N/A

Forefoot Rocker Photo  

adidas Adizero Pacer Forefoot Rocker Photo
adidas Questar 4 Forefoot Rocker Photo Sample

SAMPLE

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Toe Spring 
 

43 mm (1.7")
Lock mm (Lock")

Toe Apex Position 
 

59.5%
Lock%

Forefoot Rocker Angle 
 

15.8°
Lock°

Foam 
 

Primary Foam Picture  

adidas Adizero Pacer Primary Foam Picture
adidas Questar 4 Primary Foam Picture Sample

SAMPLE

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Secondary Foam Picture  

adidas Adizero Pacer Secondary Foam Picture
adidas Questar 4 Secondary Foam Picture Sample

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Primary Foam Name 
 

Lightstrike
Locked

Primary Foam Type 
 

EVA
Locked

Secondary Foam Name 
 

N/A
N/A

Secondary Foam Type 
 

N/A
N/A

Laces 
 

Laces Picture  

adidas Adizero Pacer Laces Picture
adidas Questar 4 Laces Picture Sample

SAMPLE

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Lace Type 
 

Flat
Locked

Width 
 

6.0 mm (0.2")
Lock mm (Lock")

Thickness 
 

1.8 mm (0.1")
Lock mm (Lock")

Stretch 
 

16.5%
Lock%

Other Features  

Other Features Photo  

adidas Adizero Pacer Other Features Photo
adidas Questar 4 Other Features Photo Sample

SAMPLE

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Tongue Gusset Type 
 

Non-gusseted
Locked

Plate 
 

None
Locked
Performance

Heel Compression Energy Return 
 

0.8
N/A

Heel Compression Video  

adidas Questar 4 Heel Compression Video Sample

SAMPLE

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Heel Energy Return  

 Preview Graph
adidas Adizero Pacer Heel Energy Return
adidas Questar 4 Heel Energy Return Sample

SAMPLE

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Heel Energy Return 
 

63.0%
Lock%

Forefoot Compression Energy Return 
 

1.4
N/A

Forefoot Compression Video  

adidas Questar 4 Forefoot Compression Video Sample

SAMPLE

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Forefoot Energy Return  

 Preview Graph
adidas Adizero Pacer Forefoot Energy Return
adidas Questar 4 Forefoot Energy Return Sample

SAMPLE

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Forefoot Energy Return 
 

66.4%
Lock%

Heel Cushioning 
 

6.4
N/A

Heel Cushioning Picture  

adidas Adizero Pacer Heel Cushioning Picture
adidas Questar 4 Heel Cushioning Picture Sample

SAMPLE

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Heel Cushioning  

 Preview Graph
adidas Adizero Pacer Heel Cushioning
adidas Questar 4 Heel Cushioning Sample

SAMPLE

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Energy Absorbed At 550N 
 

2.67 J
Lock J

Energy Absorbed At 1100N 
 

8.14 J
Lock J

Energy Absorbed At 1900N 
 

14.63 J
Lock J

Forefoot Cushioning 
 

6.7
N/A

Forefoot Cushioning Picture  

adidas Adizero Pacer Forefoot Cushioning Picture
adidas Questar 4 Forefoot Cushioning Picture Sample

SAMPLE

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Forefoot Cushioning  

 Preview Graph
adidas Adizero Pacer Forefoot Cushioning
adidas Questar 4 Forefoot Cushioning Sample

SAMPLE

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Energy Absorbed At 800N 
 

4.02 J
Lock J

Energy Absorbed At 1300N 
 

7.17 J
Lock J

Energy Absorbed At 2050N 
 

10.68 J
Lock J

Heel Firmness 
 

9.3
N/A

Heel Firmness Graph  

 Preview Graph
adidas Adizero Pacer Heel Firmness Graph
adidas Questar 4 Heel Firmness Graph Sample

SAMPLE

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Firmness At 550N 
 

64.3 N/mm
Lock N/mm

Firmness At 1100N 
 

71.2 N/mm
Lock N/mm

Firmness At 1900N 
 

95.3 N/mm
Lock N/mm

Forefoot Firmness 
 

9.4
N/A

Forefoot Firmness Graph  

 Preview Graph
adidas Adizero Pacer Forefoot Firmness Graph
adidas Questar 4 Forefoot Firmness Graph Sample

SAMPLE

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Firmness At 800N 
 

77.6 N/mm
Lock N/mm

Firmness At 1300N 
 

96.9 N/mm
Lock N/mm

Firmness At 2050N 
 

132 N/mm
Lock N/mm

Forefoot Long Run Cushioning 
 

6.3
N/A

Forefoot Long Run Cushioning  

 Preview Graph
adidas Adizero Pacer Forefoot Long Run Cushioning
adidas Questar 4 Forefoot Long Run Cushioning Sample

SAMPLE

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Energy Absorbed At 10km 
 

6.82 J
Lock J

Energy Absorbed At 20km 
 

6.68 J
Lock J

Energy Absorbed At 30km 
 

6.58 J
Lock J

Energy Absorbed At 40km 
 

6.51 J
Lock J

Rocker Stiffness 
 

6.6
N/A

Forefoot Rocker Stiffness Video  

adidas Questar 4 Forefoot Rocker Stiffness Video Sample

SAMPLE

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Forefoot Rocker Stiffness Graph  

 Preview Graph
adidas Adizero Pacer Forefoot Rocker Stiffness Graph
adidas Questar 4 Forefoot Rocker Stiffness Graph Sample

SAMPLE

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Force To Flatten The Rocker 
 

75 N
Lock N

Forefoot Bending Energy Return 
 

0.8
N/A

Forefoot Bending Video  

adidas Questar 4 Forefoot Bending Video Sample

SAMPLE

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Forefoot Bending Energy Return  

 Preview Graph
adidas Adizero Pacer Forefoot Bending Energy Return
adidas Questar 4 Forefoot Bending Energy Return Sample

SAMPLE

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Forefoot Bending Energy Return 
 

42.7%
Lock%

Forefoot Bending Stiffness 
 

6.6
N/A

Forefoot Bending Resistance Picture  

adidas Adizero Pacer Forefoot Bending Resistance Picture
adidas Questar 4 Forefoot Bending Resistance Picture Sample

SAMPLE

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Forefoot Bending Resistance  

 Preview Graph
adidas Adizero Pacer Forefoot Bending Resistance
adidas Questar 4 Forefoot Bending Resistance Sample

SAMPLE

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Forefoot Bending Stiffness 
 

5.8 N/mm
Lock N/mm

Forefoot Bending Force 
 

398 N
Lock N

Heel Compression Depth 
 

N/A

Heel Compression Graph  

adidas Questar 4 Heel Compression Graph Sample

SAMPLE

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Heel Compression At 550N 
 

Lock mm

Heel Compression At 1100N 
 

Lock mm

Heel Compression At 1900N 
 

Lock mm

Forefoot Compression Depth 
 

N/A

Forefoot Compression Graph  

adidas Questar 4 Forefoot Compression Graph Sample

SAMPLE

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Forefoot Compression At 800N 
 

Lock mm

Forefoot Compression At 1300N 
 

Lock mm

Forefoot Compression At 2050N 
 

Lock mm

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adidas Adizero Pacer

adidas Questar 4

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  1. Comparison
 • Posted 1 hour ago

adidas Adizero Pacer vs adidas Questar 4: Main Discussion

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