Katie Ledecky records second-fastest 400m of career after surging past Summer McIntosh
McIntosh held a 0.18 advantage coming off the final turn, but Ledecky turned on the jets to surge ahead in the final 50 meters.
McIntosh held a 0.18 advantage coming off the final turn, but Ledecky turned on the jets to surge ahead in the final 50 meters.
