ASICS vs Brooks for Running: Which Brand's Line-Up Fits Your Level?

The short answer

ASICS and Brooks are the two brands you are most likely to be handed in a running store, and their line-ups map onto each other almost exactly: a neutral everyday trainer, a max-cushion shoe above it, a stability shoe beside it, and a plated race shoe at the top. Pick a role first and a brand second, and the decision gets a lot easier.

Across the three pairs below, one pattern repeats: the ASICS is taller and more energetic, the Brooks is lower and steadier. The exception is widths, where Brooks wins outright. If this is your first pair of running shoes, either brand is a fine place to start and our best running shoes for beginners page ranks the whole field.

The line-ups, matched by role

That is the whole decision in one grid. The rest of this page is about what actually differs inside each row.

How each brand builds a shoe

ASICS has spent the last few years pushing foam height and foam liveliness. The Novablast runs FF BLAST MAX with an FF TURBO² layer in the forefoot — a foam family borrowed from the faster end of its range — and the Kayano uses FF BLAST MAX over FF BLAST PLUS with a FluidSupport system rather than a traditional medial post. The result across the line is taller shoes that want to bounce.

Brooks has gone the other way: nitrogen-infused DNA LOFT v3 in the Ghost, dual-density DNA Tuned in the Glycerin, GuideRails in the Adrenaline. These are shoes tuned to feel the same at mile 1 and mile 12, on a lower platform, with a broad base. Brooks also keeps a size run that most of the industry has quietly abandoned.

Neither philosophy is a marketing fiction — the lab numbers below back both of them up. What they mean for you is simple: ASICS if you want the shoe to give something back, Brooks if you want it to stay out of the way.

Daily trainer: Novablast 6 vs Ghost 18

This is the pair most people are actually choosing between, and RTINGS measured both in one lab, which makes the comparison unusually clean.

Sources: RTINGS Novablast 6 and RTINGS Ghost 18. We break this pair down in full on ASICS Novablast 6 vs Brooks Ghost 18.

Max cushion: Gel-Nimbus 28 vs Glycerin 23

Both brands' plush, long-run shoes, both measured by RunRepeat. The ASICS is the bigger shoe: RunRepeat put the Gel-Nimbus 28 at 39.5 mm heel and 34.3 mm forefoot against the Glycerin 23's 37.2 mm and 29.0 mm — a 5.3 mm gap under the forefoot, which is the part of a max-cushion shoe you feel late in a long run. The Nimbus is also lighter in the lab, 9.8 oz against 10.7 oz.

The Glycerin wins on a quieter point: honesty. RunRepeat measured its drop at 8.2 mm against a listed 8 mm, while the Nimbus measured 5.2 mm against a listed 8 mm and 39.5 / 34.3 mm against ASICS' listed 43.5 / 35.5 mm. If you are buying on drop — because you have a history of Achilles trouble, say, or because you know what works for you — that 2.8 mm discrepancy matters more than the stack does. Our heel drop and stack height explained page covers why listed and measured numbers diverge across the whole industry.

Width is the other separator. ASICS lists the Nimbus in standard, wide and extra wide for men and narrow, standard and wide for women; Brooks lists the Glycerin in standard, wide and extra wide. Both are better than average; neither matches the Adrenaline. Best max-cushion running shoes ranks both against the rest of the category.

Stability: Kayano 33 vs Adrenaline GTS 25

Both of these replaced the old-fashioned medial post years ago, and both now guide the foot with geometry and firmer foam instead. They are not equivalent shoes.

• Size. Running Warehouse lists the Gel-Kayano 33 at 41 mm heel and 33 mm forefoot with an 8 mm drop; RunRepeat measured the Adrenaline GTS 25 at 36.1 mm and 25.9 mm, against a 10 mm listed drop. The Kayano is a substantially bigger shoe — about 7 mm more foam under the forefoot.
• How the support works. The Kayano uses ASICS' FluidSupport, built into the midsole itself; the Adrenaline uses GuideRails, which sit either side of the heel and only engage when your foot moves past a certain point. GuideRails is the less intrusive of the two by design.
• Weight. Near-identical: 10.4 oz for the Kayano, 10.6 oz for the Adrenaline, both men's. Stability shoes are heavy; this is the cost of the category.
• Widths. The Kayano comes in men's D, 2E and 4E and women's 2A, B and D. The Adrenaline comes in four widths for each: men's 1B, 1D, 2E, 4E and women's 2A, 1B, 1D, 2E.

Widths: the thing that usually decides it

If your feet sit at either end of the width range, this comparison is already over and the lab numbers do not get a vote. Here is the published size run for the six shoes on this page:

Brooks offers four widths on two of its three everyday shoes; ASICS tops out at three and offers only two on the Novablast. Note the women's coding trap: a women's D is a wide, while a men's D is a medium, so a women's Kayano in D is not the same fit as a men's. Our pages on running shoes for wide feet and running shoes for narrow feet go through the whole field.

Specs side by side

Faster shoes and race day

Above the everyday shoes, the two ranges stop looking alike. ASICS fields a deep uptempo bench — the Magic Speed 5 as a plated trainer you can race in, the Superblast 3 as an unplated long-run and tempo shoe that a lot of runners treat as a do-everything — plus the Metaspeed Sky and Edge at the top, split by whether you lengthen your stride or quicken your cadence. Brooks runs a narrower line: the Hyperion Max 4 for uptempo work and the Hyperion Elite 6 for racing.

For most runners this does not decide anything, because the first two pairs you buy are a daily trainer and then either a second daily trainer or a tempo shoe. It starts to matter at the half and marathon, where the rotation grows. See tempo shoe vs race shoe for what each job needs, and best carbon-plated running shoes for where the Metaspeeds and the Hyperion Elite rank.

Level by level

This site picks by pace and weekly mileage rather than by brand, so here is how the choice lands at each tier.

• Couch to 5K. The NHS Couch to 5K plan is nine weeks of run/walk intervals three times a week. Brooks, narrowly: the Ghost 18 is steadier and comes in four widths, which matters when you do not yet know what your feet want.
• First 10K. ASICS, narrowly. A 10K plan puts a faster day in most weeks, and the Novablast is the better of the two at that. See best running shoes for 5K and 10K.
• Half marathon. A toss-up on the trainer, ASICS on the second shoe. Hal Higdon's Novice 1 Half builds to a 10-mile long run, and ASICS' uptempo bench gives you more to pair with.
• Marathon. Novice 1 Marathon runs 18 weeks to a 20-mile long run. ASICS if you want the biggest long-run shoe (the Nimbus has 5.3 mm more forefoot foam than the Glycerin); Brooks if you need a width ASICS does not make. Our best marathon training shoes page sets out the rotation.

Who should buy which

Buy ASICS if: you want more foam for the weight; you like a shoe that feels springy; you sometimes run fast and want a deeper bench of uptempo options; your long run is the session that hurts.

Buy Brooks if: you need Narrow or Extra Wide; you want predictable over exciting; you are new to running and your legs are still adapting; you care that the listed drop matches the measured one.

Buy neither if: you have already decided you want a rockered, maximal ride — that is HOKA's territory, and HOKA vs Brooks covers it.