She won the 55-meter hurdles in 8.82 seconds and the triple jump at 34-3.
Joyner-Kersee won the 400-meter hurdles with a time of 57.15 seconds.
Celia Brown, also 16, won the 300m hurdles in 47.1.
She also won the 60-meter hurdles at the 1992 Millrose.
Johnson won the hurdles for the fourth time in nine years.
Last March in the indoor state meet, she won both the 55 hurdles and the triple jump.
He won the hurdles in a meet-record time of 51.62 seconds.
Young, an American, won the 400 hurdles in 48.20.
Then she was about to win the hurdles when she almost broke her left foot.
American men will also be favored to win the shot-put and the 110-meter hurdles.