One of the first indications of how the public views the Preakness field can be found in the prices of the Black-Eyed Susan/Preakness double. It’s where you hook up the winner of the 3-year-old filly race on Friday with winner of the Preakness on Saturday. Betting closes at post time on the Friday race.
Source: Los Angeles Times May 19, 2018 17:03 UTC