May 3 (UPI) -- The 151st Kentucky Derby headed to the post Saturday with the prospect of a wet track, an open slot in the starting gate and no firm favorite.

Aside from the potential weather, the race shaped up as an entertaining and potentially lucrative wagering opportunity -- and a chance for one or more of the 19 3-year-olds to separage toward eventual stardom.

Journalism, the Santa Anita Derby winner, remained the favorite in the early wagering, his odds holding steady around the 3-1 of the morning line as post time for the first Churchill Downs race neared.

After him, it was a scramble on the odds board with 2024 2-year-old champion Citizen Bull, Arkansas Derby winner Sandman and Florida Derby runner-up Sovereignty all getting some support.

Citizen Bull is trained by Bob Baffert, who seeks a record seventh Kentucky Derby win. D. Wayne Lukas trains long shot American Promise as the 89-year old conditioner shoots for his fifth score in the Run for the Roses.