Australian teenager Steve Solomon ran out of steam in the Olympic men's 400m final on Monday.
After becoming the first Australian man in 24 years to reach the Olympic 400m title race by clocking personal bests of 45.18 and 44.97 seconds in his heat and semi-final, Solomon was unable to go faster again in the final.
He still clocked his second fastest ever time of 45.14 in a race won by another 19-year-old, Kirani James from Grenada, in a sizzling 43.94.
World junior champion Luguelin Santos from the Dominican Republic took silver in 44.46 and Lalonda Gordon from Trinidad and Tobago was third in 44.52.
The last Australian man to contest an Olympic 400m final was Darren Clark in 1988.
Australian Alana Boyd finished 11th in the women's pole vault final, with her only successful clearance coming at 4.30m.
Lauren Boden was disqualified after finishing last in her 400m hurdles semi-final.