CHALLENGING THIS WORLD RECORD

Plan your attempt.

Before you turn on your camera, take some time to think about the world record you are about to set. Will you do it alone, or involve your friends? Do you have all the props you'll need? Have you read the rules?
Film with purpose.

You don't need special equipment or a Hollywood director to document a great record. Focus on telling a great story. Aim to make your video entertaining and concise — rambling intros will scare away viewers. IMPORTANT: If you shoot with your phone, be sure to hold it horizontally.
Upload your video

Our moderation team will quickly process it. If your submission is approved, share it on Facebook, Twitter and beyond. You’re a world record holder!

YOU NEED TO BEAT

4.50 degrees

Rules

- Ten angles in one continuous run of an on-screen angle-estimation test, recorded from the start of the run to its final result with no cuts.
- Each angle is picked at random by the test to the whole degree, anywhere under 180 degrees. Tests that only use round numbers, such as multiples of 5 or 15, do not count.
- Estimate by eye only: no protractor, ruler, measuring app, angle readout, or preview of the guess drawn over the angle. A plain or gridded background is allowed.
- Each guess is locked in before the true angle is shown, and the test shows the true angle and the guess for all ten angles.
- The result is the average of the ten errors in degrees (how far each guess was from the true angle, over or under), worked out from the values on screen to one decimal place. Lower is better.

CHALLENGING THIS WORLD RECORD

Plan your attempt.

Film with purpose.

Upload your video

YOU NEED TO BEAT

4.50 degrees

Rules