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Head-to-head Updated

Sumitomo H/TR Z vs Toyo Proxes ST — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 0 + 0 road tests and 4 + 14 owner reviews. How we score

Proxes ST is ahead, 72–54

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Sumitomo H/TR Z
Tire ASumitomo

H/TR Z

Summer Ultra High Performance tires

Provisional

Tests – · none yet Owners 44 · 4 reviews

Toyo Proxes ST
Tire BToyo

Proxes ST

All Season

Provisional

Tests – · none yet Owners 73 · 14 reviews

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 56

    Dry

    Proxes ST +16
    72
    Why this score
    SourceH/TR ZProxes ST
    Professional tests (TWG score)≈ 61 (est.)≈ 71 (est.)
    Reviews found online5075

    H/TR Z: 60% × 60.6 (est.) + 40% × 50.1 = 56

    Proxes ST: 60% × 70.5 (est.) + 40% × 74.7 = 72

    No road tests of dry for H/TR Z. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

    No road tests of dry for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 57

    Wet

    Proxes ST +18
    75
    Why this score
    SourceH/TR ZProxes ST
    Professional tests (TWG score)≈ 60 (est.)≈ 74 (est.)
    Reviews found online5377

    H/TR Z: 60% × 60.2 (est.) + 40% × 52.7 = 57

    Proxes ST: 60% × 73.6 (est.) + 40% × 76.6 = 75

    No road tests of wet for H/TR Z. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

    No road tests of wet for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. –

    Snow

    No comparison
    66
    Why this score
    SourceH/TR ZProxes ST
    Professional tests (TWG score)–≈ 68 (est.)
    Reviews found online–64

    Proxes ST: 60% × 67.8 (est.) + 40% × 63.6 = 66

    No road tests of snow for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.33).

  4. 57

    Comfort

    Proxes ST +15
    72
    Why this score
    SourceH/TR ZProxes ST
    Professional tests (TWG score)≈ 65 (est.)≈ 70 (est.)
    Reviews found online4574

    H/TR Z: 60% × 65 (est.) + 40% × 45.4 = 57

    Proxes ST: 60% × 70 (est.) + 40% × 74.1 = 72

    No road tests of comfort for H/TR Z or Proxes ST. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 44

    Treadwear

    Proxes ST +25
    69
    Why this score
    SourceH/TR ZProxes ST
    Professional tests (TWG score)≈ 54 (est.)≈ 67 (est.)
    Reviews found online2872

    H/TR Z: 60% × 54 (est.) + 40% × 28 = 44

    Proxes ST: 60% × 67.5 (est.) + 40% × 71.7 = 69

    No road tests of treadwear for H/TR Z. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

    No road tests of treadwear for Proxes ST. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  6. 49

    Handling (owners)

    Proxes ST +22
    71
    Why this score
    SourceH/TR ZProxes ST
    Reviews found online4971
Scores at a glance
CategorySumitomo H/TR ZToyo Proxes ST
Relative Score 54 72
Dry 56 72
Wet 57 75
Snow – 66
Comfort 57 72
Treadwear 44 69
Handling (owners) 49 71

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

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score

H/TR Z

Proxes ST

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

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A H/TR Z

Pros

  • High value-for-money proposition
  • Strong dry weather traction
  • Competitive tread life for some users

Cons

  • Inconsistent tread wear and longevity
  • Subpar wet weather performance
  • Reports of structural failure and blowouts
All owner themes in the H/TR Z review

Tire B Proxes ST

Pros

  • Exceptional tread life and long-term durability
  • Quiet and comfortable ride quality compared to other brands and run-flats
  • Strong dry and wet grip with good resistance to aquaplaning

Cons

  • Poor performance and limited traction in snow and ice
  • A small number of users experienced disappointing treadwear and longevity
  • Conflicting feedback regarding wet grip, with isolated reports of poor performance
All owner themes in the Proxes ST review

Specs side by side

Attribute A · Sumitomo H/TR Z B · Toyo Proxes ST
CategorySummer Ultra High Performance tiresAll Season
Vehicle typePassenger Car / CrossoverSUV and 4x4

Which one should you actually buy?

Sumitomo H/TR Z

Toyo Proxes ST

Winner: Toyo Proxes ST — better treadwear, handling and wet. It leads or ties in every category we score. Sumitomo H/TR Z rests on little evidence so far (0 tests, 4 reviews), so read this result as provisional. Toyo Proxes ST rests on little evidence so far (0 tests, 14 reviews), so read this result as provisional.

Pick tire B You want the longest tread life

Toyo Proxes ST scores 69 vs 44 on treadwear.

Pick tire B You enjoy sharp, responsive handling

Toyo Proxes ST scores 71 vs 49 on handling.

Pick tire B Your priority is wet-weather safety

Toyo Proxes ST scores 75 vs 57 on wet.

Pick tire B You want the most grip on dry roads

Toyo Proxes ST scores 72 vs 56 on dry.

Tire A · Sumitomo H/TR Z
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Tire B · Toyo Proxes ST
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H/TR Z or Proxes ST?

Which is better in the wet, H/TR Z or Proxes ST?

Toyo Proxes ST, 75 vs 57 on our wet score.

Which grips better on dry roads, H/TR Z or Proxes ST?

Toyo Proxes ST, 72 vs 56 on our dry score.

Which is more comfortable, H/TR Z or Proxes ST?

Toyo Proxes ST, 72 vs 57 on our comfort score.

Which lasts longer, H/TR Z or Proxes ST?

Toyo Proxes ST, 69 vs 44 on our treadwear score.

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

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