Chen Yiwen and Chen Jia finish first and second in the women’s 3m springboard, while Ledecky takes seventh world title in thriller

American Katie Ledecky secured a seventh 800m freestyle world title in a thrilling race, the US set a world record in storming to 4x100m freestyle gold in the mixed relay, and China continued their diving dominance on Saturday.

Ledecky had to give her all to secure a 23rd career world title as she was pushed to the limit by Australian Lani Pallister and Canadian star Summer McIntosh from start to finish.

Ledecky edged Pallister by a mere 0.32 of a second as she clocked a championship record of eight minutes 5.62 seconds, missing her world record by just 1.5 seconds.

McIntosh, who briefly led with 100m to go, earned bronze in her first major 800m duel with Ledecky, 1.67 seconds back. McIntosh had won the 400m freestyle, 200m medley and 200m butterfly gold in Singapore.