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Head-to-head Updated May 2026

Cooper Discoverer A/T3 Sport vs Cooper WeatherMaster ST3 — Compared (May 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

Tire A Cooper

Cooper Discoverer A/T3 Sport

All Terrain and Off Road All Season tire

Cooper Discoverer A/T3 Sport tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
95/100
44 owner reviews
Dry
99
Wet
96
Snow
89
Comfort
97
Noise
94
Treadwear
94
Handling
87
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Cooper

Cooper WeatherMaster ST3

Touring Winter tire

Cooper WeatherMaster ST3 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
62/100
Owner ratings
Dry
78
Wet
55
Snow
60
Comfort
65
Noise
–
Treadwear
70
Handling
75
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Cooper Discoverer A/T3 Sport — better wet, comfort and snow. It leads or ties in every category we score.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 21
A
99
B
78
Why this score
SourceDiscoverer A/T3 SportWeatherMaster ST3
Tyre Reviews owners 95 –

Wet

Weight: Important
Score (0–100) Discoverer A/T3 Sport leads by 41
A
96
B
55
Why this score
SourceDiscoverer A/T3 SportWeatherMaster ST3
Tyre Reviews owners 85 –

Snow

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 29
A
89
B
60
Why this score
SourceDiscoverer A/T3 SportWeatherMaster ST3
Tyre Reviews owners 75 –

Comfort

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 32
A
97
B
65
Why this score
SourceDiscoverer A/T3 SportWeatherMaster ST3
Tyre Reviews owners 98 –

Noise

Weight: Neutral
Score (0–100)
A
94
B
–

Treadwear

Weight: Important
Score (0–100) Discoverer A/T3 Sport leads by 24
A
94
B
70
Why this score
SourceDiscoverer A/T3 SportWeatherMaster ST3
Tyre Reviews owners 87 –

Handling

Weight: Neutral
Score (0–100) Discoverer A/T3 Sport leads by 12
A
87
B
75
Why this score
SourceDiscoverer A/T3 SportWeatherMaster ST3
Tyre Reviews owners 87 –

Scores at a glance

CategoryCooper Discoverer A/T3 SportCooper WeatherMaster ST3
Relative Score 94 66
Dry 99 78
Wet 96 55
Snow 89 60
Comfort 97 65
Noise 94 –
Treadwear 94 70
Handling 87 75

Higher is better. The Relative Score follows your weights below; category scores do not change.

Personalize

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
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Neutral
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score

Tire A

Tire B

Only categories both tires have data for count toward the headline score.

Specifications

Specs side by side

Attribute A · Cooper Discoverer A/T3 Sport B · Cooper WeatherMaster ST3
CategoryAll Terrain and Off Road All Season tireTouring Winter tire
Vehicle typeSUV and 4x4Passenger Car / Crossover
Final verdict

Which one should you actually buy?

Cooper

Cooper

Winner: Cooper Discoverer A/T3 Sport — better wet, comfort and snow. It leads or ties in every category we score.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer A/T3 Sport scores 96 vs 55 on wet.

Pick tire A You want the most comfortable ride

Cooper Discoverer A/T3 Sport scores 97 vs 65 on comfort.

Pick tire A You drive through snowy winters

Cooper Discoverer A/T3 Sport scores 89 vs 60 on snow.

Pick tire A You want the longest tread life

Cooper Discoverer A/T3 Sport scores 94 vs 70 on treadwear.

Tire A · Cooper Discoverer A/T3 Sport
Check price on Amazon
Tire B · Cooper WeatherMaster ST3
Check price on Amazon

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

Community buzz from Reddit and forums is shown for context only — it never changes the score.