Upsets were prominent on Tuesday's Blue Grass Day undercard at Keeneland, the biggest being Positano Sunset's 14-1 surprise over the favorite Emery in the $623,338 Madison (G1) for fillies and mares.

A days-long wet weather system forecast to affect central Kentucky this weekend could wreak havoc on Keeneland's signature program of the spring meet on Saturday, in particular the two stakes scheduled for the turf.

Sunday’s Arc Trials at ParisLongchamp provided clues for the Oct. 6 Prix de l’Arc de Triomphe (G1).

Opera Singer stole the show on the undercard with a five-length conquest of the Prix Marcel Boussac. So devastating was the Aidan O’Brien pupil that the ever-reticent jockey Ryan Moore was already talking up her chances in the 2024 Arc.