It's exceedingly rare to see a Kentucky Derby point race run on a Tuesday, but thanks to a week of catastrophic weather in the Commonwealth, that's what is happening at Keeneland as a field of seven line up to contest the last of the major Derby preps--the GI Toyota Blue Grass Stakes. On the rail, and fortuitously drawn to the inside of a closer, is 'TDN Rising Star' River Thames (Maclean's Music). With the small field, the speedster will likely encounter considerably less traffic trouble than that post position would...