How we score and rate products
Six criteria, each calculated from specifications we have checked against a published source, each weighted the same way for every product in a category. The formula for each one is below, with the figures it uses and the direction of each effect — the same specification always produces the same score, and there is no editorial thumb on the scale.
This page is still being written
Editorial pages are content rows, edited in the admin — so this one fills in without a deploy.
The six criteria and their weights
How the arithmetic works
Each criterion starts from a reference frame — 100 in², 300 g unstrung, balance 32.0 cm, a 16×19 pattern, RA 65, swing weight 320 — which scores 8.4 on all six. Every figure a racquet differs by moves the score up or down by a fixed amount, in the direction listed above, and the result is held between 6.0 and 9.8.
String-bed density is mains × crosses, so a 16×19 is 304 and an 18×20 is 360 — one number for how tightly the bed is packed, which is what the control and spin criteria actually turn on.
The overall score is the weighted mean of the criteria on file. At least 5 of the six are needed before any overall score is published, and the weights of those present are rescaled to 100% — a frame with no stiffness figure is scored on the five that are real, and its page says so. Every criterion on a product page prints the figures it was calculated from. Model version 1.0.
What the overall number means
Price is never scored — a cheap frame is not a better frame, and the price sits beside the score so you can weigh it yourself. Paint, packaging and brand history carry no points. A product whose specification is too thin to calculate from carries no overall score at all.
Every number here starts as a measurement. How those measurements are taken is set out separately.
The methodology →