Bumping this down a bit as Rich Strike was an extreme longshot unlikely to win one of the next two races. There's also the possibility of another horse sweeping the PS and the BS but that is also difficult.

The Associated Press: Rich Strike not entering Preakness after Kentucky Derby win.
https://apnews.com/2bad4f8fcb0ac394086525a690a3f903

This market resolves to "YES" if a horse wins any two of the Kentucky Derby, the Preakness Stakes, and the Belmont Stakes. Resolves to "NO" if the winners of all three races are different.