Katie Ledecky got her start in swimming because she just wanted to make friends. Her brother was eager to join a team at a pool near their house and as a 6-year-old, she tagged along.

By summer’s end, the Ledecky siblings had made 100 friends ranging in age from 6 to 18. Some of them remain good friends with Katie, who went on to become the world’s best swimmer in the post-Michael Phelps era.

She earned five golds and a silver at this year’s world championships in Budapest, maintaining the upward trajectory she first established as a surprise gold medalist at the 2012 London Olympics.

Her dominant performance in Hungary earned Ledecky Associated Press Female Athlete of the Year honors.

In balloting by U.S. editors and news directors announced Tuesday, Ledecky received 351 points, edging out Serena Williams with 343. Williams won the Australian Open for her Open era-record 23rd Grand Slam tennis title. Olympic track star Allyson Felix finished third in voting, with 248 points.

Last year, Ledecky was second to gymnast Simone Biles in the balloting.

The AP Male Athlete of the Year will be announced Wednesday.

Ledecky is the eighth female swimmer to win and the first since Amy Van Dyken in 1996. Among the others is 1969 winner Debbie Meyer. At last year’s Rio de Janeiro Games, Ledecky equaled Meyer’s feat of sweeping the 200, 400 and 800 freestyles in a single Olympics.