19-year-old Kristof Milak leaves Olympic swimmer Michael Phelps’ record in the dust

Hungarian swimmer Kristof Milak blew Olympic champion Michael Phelps’ 200-meter butterfly record out of the water Wednesday by nearly a second, taking gold in the World Swimming Championships.

The 19-year-old Milak swam it in one minute, 50.73 seconds, which was 0.78 seconds faster than the record...