Germany's Florian Wellbrock set a short course world record in the men's 1,500m freestyle on the final day of the FINA World Swimming Championships in Abu Dhabi on Tuesday.
Wellbrock, who won gold in the 10km open water event at the Tokyo Olympics, clocked 14:06.88 to better Gregorio Paltrinieri's mark of 14:08.065.
"Since I've always preferred long course, earlier this year I did not think of breaking the world record here as honestly I had ridiculous times in short course," Wellbrock said.
"I think my personal best was almost identical with my long course top time.
"Then, I had a really good race in Kazan (at the European short course championships), where I clocked 14:09.88 and from that point I knew anything was possible here."
The German won a bronze medal in the men's 1,500m freestyle in the Tokyo pool this year.
Wellbrock's world record was the fourth of the meet after Margaret MacNeil in the women's 50m backstroke, Siobhan Haughey in the women's 200m freestyle and Sweden's women equalling the Americans' mark in the 4×50m medley relay.
The United States topped the medal charts with nine golds (30 total medals), followed by Canada with seven golds (15) and Italy with five (16).
Hayden Wilde chases six-for-six at Pro Dubai T100
Alcaraz left nonplussed after shock defeat to Norrie in Paris
Australia captain Cummins returns to bowling in buildup to Ashes
Man dies after being hit by car driven by Inter goalkeeper
Dimitrov marks return from pectoral injury with win in Paris
