Schott's Original Miscellany

Tugs of War

Specifications of competition-grade rope, as prescribed by The
Tug of War International Federation:

The rope must not be less than 10 centimetres (100 mm), or more
than 12.5 centimetres (125 mm) in circumference, and must be free from knots or
other holdings for the hands. The ends of the rope shall have a whipping
finish. The minimum length of the rope must not be less than 33.5
metres.