How are records measured?

Each record has a tailored set of rules and evidence requirements so that everyone attempts the record under the same conditions and can prove their achievement beyond doubt. The majority of record attempts are verified by gathering this evidence and uploading it for the Records Management Team to review.

As each record is as diverse as our record holders themselves, all titles have a unique set of rules that are specific to that activity. This is why it is crucial to apply to Guinness World Records before your record attempt to get these specific guidelines.

There are some general requirements that all record evidence must include:

Independent verification:

All record attempts require the presence of completely independent witnesses who are our eyes on the ground to witness and confirm that all of our rules have been followed.

Certain records require the presence of expert independent witnesses who have a specialism in a certain field relevant to the record. These can include: veterinarians, medical professionals, surveyors, hygiene inspectors, dance professionals, sports governing bodies and many more.

Proof of measurement:

Each record is based on a measurement, whether it be length, weight, number of items or people, area, temperature etc. The accuracy of this measurement is paramount. For many records we require the measurement to be conducted by a suitably qualified professional in the field. We also give guidance on acceptable counting methods.

Other common requirements include:

  • Log books to detail attempts that last a long time such as journeys and marathons
  • Stewards for mass participation attempts to break down the witnessing of the crowd
  • Expert timekeepers to review attempts based on time.