American Tim Mack won the Olympic pole vault title on Friday ahead of team mate Toby Stevenson when he vaulted a Games record of 5.95 metres.
Stevenson, jumping in his distinctive protective headgear, failed with three attempts at 5.95 after Mack had cleared with his second of three attempts.
Italian Giuseppe Gibilisco took the bronze with a season's best 5.85 metres.
