How we track prices
We fetch price feeds from major running retailers nightly. This page explains where prices come from, what a 90-day low means, and why size matters.
Where Prices Come From
We collect prices from major running retailers through a mix of product feeds and direct retrieval from retailer product pages. Each observation records the retailer, the price, the colorway, and the specific size it applies to.
Why Size Matters
Running shoe discounts are usually size-dependent. The headline "40% off" is often only true for a men's 7.5 and a women's 11. That is why Better Running Shoes asks for your size: once you set it, ranking pages and shoe pages show prices for offers that actually exist in your size, rather than a best-case number you cannot buy.
Your size is stored in your browser and used only to filter what we show you. It is not part of any indexed page or public URL.
What "90-Day Low" Means
We keep a history of observed prices. A 90-day low is the lowest price we recorded for that shoe within the last 90 days, at any retailer we track, in the size context being shown. It is not a manufacturer's list price, and it is not a "was" price supplied by a retailer. It is a price we recorded. A shoe also has to be at least 5% below its list price to carry the label, so a shoe that has never been discounted is not at a "low".
If we have not been tracking a shoe for 90 days, we say so rather than implying a longer history than we have.
How Quality vs. Price Works
Ranked by our rating and how good the shoe's price is: how far below MSRP, how steady, and how many sizes are in stock. A percentage discount on its own rewards shoes nobody wants. A modest discount on a well-rated shoe can therefore outrank a steep discount on a poorly rated one.
How Often Prices Update
We fetch each retailer's price feed nightly and reload our prices from it. Amazon prices are retrieved per product rather than by feed, and they carry the time we captured them beside the price.
A feed carries its own date, and when that date is more than 48 hours behind we keep showing its prices and stop making claims about them. That means no discount figure, no was-price, no 90-day low and no Quality vs. Price score. A feed we cannot date at all is treated the same way.
Retailer prices change through the day and stock disappears without warning, so the retailer's own page is always the authority. If a price on Better Running Shoes does not match what you find, the retailer is right.
Affiliate Links
Some outbound retailer links earn us a commission. Which retailer we link to is decided by price and by whether the offer exists in your size. Commission rates play no part in it, and prices are not an input to any rating. See the affiliate disclosure.