How RunMatch Scores Running Shoes: Methodology, Weights and Sources
By GearUpToFit editorial team · Last reviewed 2026-05-04
What RunMatch does
RunMatch AI is a scoring tool, not a black box and not a chatbot. You answer a short quiz; every shoe in our database is scored against your answers with the fixed rules below; the highest scores become your shortlist. The same answers always produce the same ranking, and every result shows which factors drove each score so you can disagree with it.
How a score is calculated
Each shoe gets a 0 to 100% fit on nine factors. Each fit is multiplied by the factor’s weight and the results are added up. That total is the match percentage you see.
| Factor | Weight | What it checks |
|---|---|---|
| Terrain | 18% | Does the shoe list the surface you run on (road, trail or track)? Shoes built for a different surface get partial or no credit. |
| Race distance | 15% | Is the shoe listed as a good fit for your usual race distance? |
| Gait / support | 15% | Does the shoe list support for your gait (neutral, overpronation or underpronation)? "Not sure" favours versatile neutral shoes. We treat this as comfort and fit, not injury prevention. |
| Foot shape & fit | 12% | Flat feet, high arches or a wide forefoot: checks width options, support and cushioning against what you told us. |
| Comfort needs | 10% | Whether the shoe is listed as a comfort-friendly choice for the issues you selected. See "Pain and injuries" below. |
| Pace & intensity | 10% | Matches the shoe’s role (daily trainer, speed shoe, race shoe) to your usual training intensity. |
| Budget | 8% | How close the shoe’s launch price (MSRP) is to the ranges you selected. |
| Weekly mileage | 7% | Higher weekly mileage favours more cushioning; lower mileage favours beginner-friendly shoes. |
| Brand preference | 5% | A light tie-breaker for brands you prefer. No preference means no penalty. |
Optional tenth factor: if you name a shoe you already run in, "Feel of your current shoe" is added with about 11% of the total weight (the other nine are scaled down proportionally). It rewards shoes with similar cushioning, drop and weight, prefers a direct newer version of the same shoe, and uses what you dislike about your current shoe (too firm, too soft, too heavy, too narrow) to steer away from the same problem.
Adjustments and tie-breaks
- Previous generation: a shoe that has a newer version of the same model in our database loses 3 points, so the current version ranks first. 12 of 87 shoes are currently flagged this way.
- Pain or injury reported: race-day shoes lose 15 points and speed shoes lose 5 points, and race shoes are left out of the rotation.
- Ties: the newer model year wins, then the lighter shoe.
- No paid placement: commission, sponsorship and affiliate status are not inputs to the score.
Pain and injuries
If you report pain or an injury, RunMatch stops presenting a confident "perfect match". It shows a notice that shoes cannot diagnose or treat an injury, recommends seeing a physiotherapist, sports-medicine doctor or podiatrist for current pain, and gives a cautious, comfort-first shortlist. It is educational information, never medical advice.
Where the shoe data comes from
The database holds 87 shoes from 17 brands. Each record lists weight, heel-to-toe drop, terrain, intended distances, widths, launch price (MSRP) and a cushioning rating from 1 to 10. The cushioning rating is our own editorial scale, not a lab measurement. Launch prices are shown as MSRP tiers only; we never display live retail prices.
Last reviewed: May 2026. 5 of 87 records currently link to a manufacturer page so you can check the specs yourself; we label the rest as compiled from manufacturer listings and ask you to confirm on the brand site. New models are added as we review them, so the newest releases can lag.
What the research says
Where a note on this site rests on research, it comes from the studies below, described at the strength the study supports. Observational studies show associations, not proof of cause.
- Malisoux L, Ramesh J, Mann R, Seil R, Urhausen A, Theisen D. Can parallel use of different running shoes decrease running-related injury risk? Scand J Med Sci Sports. 2015;25(1):110–115. doi:10.1111/sms.12154 — Runners who used more than one pair of running shoes had a lower risk of running-related injury than runners who used one pair. 22-week prospective observational study, 264 recreational runners. Hazard ratio 0.61 (95% CI 0.39–0.97). An association, not proof that rotating shoes prevents injury.
- Nielsen RO, Buist I, Parner ET, et al. Foot pronation is not associated with increased injury risk in novice runners wearing a neutral shoe: a 1-year prospective cohort study. Br J Sports Med. 2014;48(6):440–447. doi:10.1136/bjsports-2013-092202 — Moderate foot pronation was not associated with a higher injury risk in novice runners who wore a neutral shoe. 1-year prospective cohort, 927 novice runners (1,854 feet).
- Knapik JJ, Trone DW, Tchandja J, Jones BH. Injury-reduction effectiveness of prescribing running shoes on the basis of foot arch height: summary of military investigations. J Orthop Sports Phys Ther. 2014;44(10):805–812. doi:10.2519/jospt.2014.5342 — Choosing running shoes to match foot-arch shape made little difference to injury rates in military basic training. Secondary analysis of 3 randomized controlled trials (US Army, Air Force, Marine Corps recruits). Pooled injury rate ratio 0.97 (95% CI 0.88–1.06 men, 0.85–1.08 women).
- Chambon N, Delattre N, Guéguen N, Berton E, Rao G. Shoe drop has opposite influence on running pattern when running overground or on a treadmill. Eur J Appl Physiol. 2015;115(5):911–918. doi:10.1007/s00421-014-3072-x — Heel-to-toe drop changes how a runner lands, and the effect is not the same on a treadmill as on the road. Laboratory study, 12 healthy men, shoes with 0, 4 and 8 mm drop.
- Hoogkamer W, Kipp S, Frank JH, Farina EM, Luo G, Kram R. A comparison of the energetic cost of running in marathon racing shoes. Sports Med. 2018;48(4):1009–1019. doi:10.1007/s40279-017-0811-2 — A prototype carbon-plated marathon shoe lowered the energy cost of running by about 4% compared with two established racing shoes. Laboratory study, 18 runners, three speeds. Applies to that prototype versus the two comparison shoes, not to every carbon-plated shoe.
- Manufacturer guidance: Nike, "How often should you replace running shoes?" — Running shoes are commonly replaced somewhere between roughly 500 and 800 km (300–500 miles). Rule of thumb from a manufacturer guide, not a controlled study. Real lifespan depends on body weight, surface, foam and how you run.
How we make money
As an Amazon Associate, GearUpToFit earns from qualifying purchases. Affiliate links are marked "sponsored", and there is a disclosure next to them. Ranking is computed before any link is attached, so earning a commission cannot move a shoe up the list.
Limits
- Fit is personal. Try shoes on, walk and jog in them, and trust comfort over a percentage.
- Specs describe a men’s sample size and can change between versions.
- A match percentage is a measure of how well a shoe fits your answers, not of how good the shoe is.
Corrections and updates
Spotted an out-of-date spec or a wrong photo? Tell us and we will fix it.