2019 Kentucky Derby odds: There's a new Vegas co-favorite

Just how good is the Florida Derby (G1) winner Maximum Security? The odds makers at William Hill US aren't taking any risks, installing the Jason Servis trainee as the co-favorite for the 2019 Kentucky Derby exiting Saturday's race.

Maximum Security dropped from 60-1 to 4-1, matching the lowest price on the board with Game Winner, the champion 2-year-old who headlines Saturday's Santa Anita Derby (G1). Others with short odds include Improbable (6-1), Instagrand (7-1) and Code of Honor (8-1).

Significantly fewer interests are listed this week when compared to the last, and about a month out from the May 4 race, prices are plummeting. A few still stick out:

• A trio of horses locked into the Derby on points are each listed at 40-1: By My Standards, Cutting Humor and Plus Que Parfait. Only the first of those, the Louisiana Derby (G2) winner, figures to go off at something lower on the first Saturday in May.

• The Blue Grass Stakes (G2) appears an open affair, and trainer Todd Pletcher has been hot lately. His entry at Keeneland will be So Alive (75-1), the half-brother of Vino Rosso looking to improve after finishing third last time in Tampa Bay Downs' Sam F. Davis (G3).

• A contender in Saturday's Wood Memorial (G2), Final Jeopardy (80-1) has the same connections as Maximum Security and will likewise be making his graded stakes debut in his fourth start. He enters off an allowance win at Gulfstream Park.

• Decent future prices on the Santa Anita Derby will be tough to to come by given the number of known names in the field. Sparky Ville (120-1) may have no business running around two turns, but perhaps that's the right price to find out on the San Vicente Stakes (G2) winner.

Here's a full look at the board for William Hill US' Kentucky Derby odds: