By Michael Donovan

Omaha Beach is the 4-1 early favorite for Saturday’s 145th Kentucky Derby after drawing the No. 12 post position.

That could be a good sign for the colt and trainer Richard Mandella, considering that the horse favored to win the Derby has taken the past six.

‘‘I hope it comes out that way,’’ Mandella said.

Bob Baffert-trained Game Winner is the 5-1 second choice from the No. 16 post in the 20-horse field for the first leg of the Triple Crown.

Game Winner will start inside stablemate Roadster, the 6-1 co-third choice with Improbable, a Baffert colt who will go off from the No. 5 hole in the 1¼-mile race at Churchill Downs.

Omaha Beach enters the $3 million showcase on a three-race winning streak. The dark brown colt is coming off a 1-length victory in the slop over Improbable in the Arkansas Derby, a race that demonstrated his recent knack for getting up front quickly and staying there.

Mandella believes Omaha Beach and Hall of Fame jockey Mike Smith, who won last year’s Derby for Baffert aboard Justify, will make the most of his spot.

‘‘It’s really important if you get luck with it,’’ Mandella said. ‘‘If you get bad luck, a good post position doesn’t work.

‘‘His last couple of races, he kind of sits back and bides his time a little bit, then decides when to just cruise along. Mike will have to figure that out.’’

Baffert, meanwhile, aims to match Ben Jones’s record with his sixth Kentucky Derby win and second straight. He won last year with Justify, culminating in the Triple Crown. That came three years after he took the Triple Crown with American Pharoah.

It remains to be seen how the Derby will unfold hitting the first turn with so many horses vying for the same spot, but Improbable is in a relatively good spot.

Game Winner, who won the Breeders’ Cup Juvenile here last fall, and Roadster will have their work cut out for them, starting from post positions that are a combined 4 for 87 in the Derby. When it was noted that Roadster’s No. 17 post is 0 for 40, nervous laughter grew in a crowded room of horsemen including Baffert, his connections, and the media.

Baffert later took all of his horses’ slots in stride, if only because none was on the rail. War of Will drew that unenviable spot and was given 20-1 odds as a result.

‘‘I like the 16 hole, it’s a good spot,’’ he said of Game Winner’s position. ‘‘Roadster, he’s out there. I don’t know. I always get two horses together.”

War of Will’s trainer, Mark Casse, chose to be encouraged about his horse’s post.

‘‘It could be worse, I think,’’ he said of the horse who had a three-race winning streak halted in the Louisiana Derby. ‘‘Our horse is really on his game, so he’ll come away from there running.

‘‘I think we’ll probably be on the lead and play catch me if you can. And you know, if we come away from there like he normally does, we’re going to come away from there running.

“I’ve thought I had great draws before and gotten wiped out, so maybe this is the change.’’

Points leader Tacitus will start from the No. 8 post with 10-1 odds as he tries to give trainer Bill Mott his first Derby victory. The son of Tapit and Close Hatches by First Defence has Grade 2 wins in the Wood Memorial and Tampa Bay Derby during a three-race surge.

Another 10-1 choice is unbeaten Maximum Security, who starts from the No. 7 hole and will try to follow up his victory in the Grade 1 Florida Derby.

Todd Pletcher entries Spinoff and Cutting Humor face 30-1 odds after drawing the Nos. 19 and 10 post positions.

Also eligible is 30-1 Bodexpress, who can get into the field with a defection.

The Derby draw, with morning-line odds

PP

Horse

Jockey

Trainer

Odds

1

War of Will

Tyler Gaffalione

Mark Casse

20-1

2

Tax

Junior Alvarado

Danny Gargan

20-1

3

By My Standards

Gabriel Saez

Bret Calhoun

20-1

4

Gray Magician

Drayden Van Dyke

Peter Miller

50-1

5

Improbable

Irad Ortiz Jr.

Bob Baffert

6-1

6

Vekoma

Javier Castellano

George Weaver

20-1

7

Maximum Security

Luis Saez

Jason Servis

10-1

8

Tacitus

Jose Ortiz

Bill Mott

10-1

9

Plus Que Parfait

Ricardo Santana Jr.

Brendan Walsh

30-1

10

Cutting Humor

Corey Lanerie

Todd Pletcher

30-1

11

Haikal

Rajiv Maragh

Kiaran McLaughlin

30-1

12

Omaha Beach

Mike Smith

Richard Mandella

4-1

13

Code of Honor

John Velasquez

Shug McGaughey

15-1

14

Win Win Win

Julian Pimentel

Michael Trombetta

15-1

15

Master Fencer

Julien Leparoux

Koichi Tsunoda

50-1

16

Game Winner

Joel Rosario

Bob Baffert

5-1

17

Roadster

Florent Geroux

Bob Baffert

6-1

18

Long Range Toddy

Jon Court

Steve Asmussen

30-1

19

Spinoff

Manny Franco

Todd Pletcher

30-1

20

Country House

Flavien Prat

Bill Mott

30-1