Sam Hayes

GripCalc's content is written and maintained by one person, and this page says who. Sam Hayes writes the calculator's published method, curates the open database of hot pressure targets and tyre temperature windows, and maintains the pressure sheets for 45 circuits — along with the track day pressure guide and the grip force and contact patch tools.

Every number on this site is labelled with where it came from: manufacturer and series figures carried verbatim, estimates declared as estimates. Where something is wrong or a published figure is missing, the fastest way to fix it for everyone is to say so — the database is open and corrections are credited.