Bob Baffert-trained Bodemeister is the morning-line favorite to win the 138th running of the Kentucky Derby at Churchill Downs in Louisville, Kentucky.

Bodemeister is currently at 4-1 odds to win the first leg of horse racing's Triple Crown, largely on the strength of his runaway win in the Arkansas Derby last month.

The bettors' second choice at 9-2 is Union Rags, who has recorded a third-place finish in the Florida Derby and won the Fountain of Youth Stakes in February at Gulfstream Park.

A Bodemeister win would be the fourth for Baffert, who has won nine Triple Crown races in his illustrious career.

The 138th Kentucky Derby

Post Time: 6:24 p.m.

TV: Coverage of the day at Churchill Downs begins at 11:00 a.m. on the NBC Sports Network. NBC takes over the coverage at 4 p.m. and will carry the race itself, going off the air at 7:00 p.m.

Post Positions: The complete list of post positions follows.

1. Daddy Long Legs
2. Optimizer
3. Take Charge Indy
4. Union Rags
5. Dullahan
6. Bodemeister
7. Rousing Sermon
8. Creative Cause
9. Trinniberg
10. Daddy Knows Best
11. Alpha
12. Perspective
13. Went The Day Well
14. Hansen
15. Gemologist
16. El Padrino
17. Done Talking
18. Sabercat
19. I'll Have Another
20. Liaison

Post Notes: Last year's winner, Animal Kingdom, started from the No. 16 position. No horse has won the Derby from post No. 1 since Ferdinand in 1986.