Paltrinieri strengthened his lead from start to finish .
Paltrinieri headed into the 1,400 - metre turn under a world - record pace , but fell off towards the end for the gold medal in 14 : 34.57 .
Strengthening his lead from start to finish , Paltrinieri headed into the 1,400 - metre turn under a world - record pace , but fell off towards the end for the gold medal in 14 : 34.57 .