Over the past 10 years, of all of the horses who ran in the Preakness and then the Belmont, 4 ran off races and the rest X\'d.

TGAB: We came up with different numbers from 2005 through 2014:
top pair off X  total
 0   2    8  14  24

jerry: My bad. I was using greater than 2 pts. off as an X. The message is the same. Preakness horses, for the most part, regress in the Belmont.