Victor Espinoza celebrates atop American Pharoah after winning the 147th running of the Belmont Stakes at Belmont Park on June 6 — the first Triple Crown win since 1978. Al Bello/Getty Images hide caption

toggle caption Al Bello/Getty Images

American Pharoah and trainer Bob Baffert at Belmont Park in Elmont, N.Y. American Pharoah will try to become horse racing's first Triple Crown winner since 1978. Seth Wenig/AP hide caption

toggle caption Seth Wenig/AP

Serena Williams serves the ball to Andrea Hlavackova during the first round of the French Open in Paris. Christophe Ena/AP hide caption

toggle caption Christophe Ena/AP

American Pharoah, ridden by Victor Espinoza, crosses the soggy finish line to win the 140th running of the Preakness Stakes at Pimlico Race Course on Saturday. Patrick Smith/Getty Images hide caption

toggle caption Patrick Smith/Getty Images

Keen Ice runs during morning training ahead of the Kentucky Derby at Churchill Downs in Louisville, Ky. Andy Lyons/Getty Images hide caption

toggle caption Andy Lyons/Getty Images

The Two-Way

Ahead Of The Kentucky Derby, 5 Absurd Rules For Naming Racehorses

"Ocho Ocho Ocho" made it through the name-approval process, but "Preakness Princess" never would.

Listen Loading… 1:58
  • Playlist
  • Download
  • Embed
    <iframe src="http://www.npr.org/player/embed/403585608/403589104" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Tonalist (left) with Joel Rosario up edges out Commissioner with Javier Castellano up to win the 146th running of the Belmont Stakes horse race. Triple Crown favorite California Chrome tied for fourth place with Wicked Strong. Matt Slocum/AP hide caption

toggle caption Matt Slocum/AP

Announcer Tom Durkin at Belmont Park in Elmont, N.Y., in May 2008. Julie Jacobson/AP hide caption

toggle caption Julie Jacobson/AP