1. War of Will (20/1)
Trainer/Jockey: Mark Casse/Tyler Gaffalione
Career wins: 3
Recent result: 9th at Louisiana Derby
One thing to know: War of Will had won three straight races before a disappointing ninth-place finish at the Louisiana Derby due to injury. Trainer Mark Casse says War of Will will be back and ready to go for Saturday, but he will have his work cut out for him regardless — it's been more than 30 years since a horse won the Kentucky Derby out of the first gate.
2. Tax (20/1)
Trainer/Jockey: Danny Gargan/Junior Alvarado
Career wins: 1
Recent result: 2nd at Wood Memorial
One thing to know: Tax has never finished off the podium in three career races, and finished second among a slew of Kentucky Derby contenders at the Wood Memorial, his final tune-up before Saturday. Tax will be an interesting trifecta and superfecta play for bettors.
3. By My Standards (20/1)
Trainer/Jockey: Bret Calhoun/Gabriel Saez
Career wins: 2
Recent result: 1st at Louisiana Derby
One thing to know: By My Standards is another interesting pick to sneak into the top three at the Kentucky Derby, having never finished lower than third in five career races and entering the Derby with two straight wins.
4. Gray Magician (50/1)
Trainer/Jockey: Peter Miller/Drayden Van Dyke
Career wins: 1
Recent result: 2nd at UAE Derby
One thing to know: Gray Magician is a longshot for a reason — horses that have won the UAE Derby rarely contend at the Kentucky Derby, and Gray Magician is the first runner-up to attempt the race. With a crowded field of some of the best horses on the planet, it's tough to see him bucking the trend.
5. Improbable (6/1)
Trainer/Jockey: Bob Baffert/Irad Ortiz Jr.
Career wins: 3
Recent result: 2nd at Arkansas Derby
One thing to know: Despite his name, Improbable will likely be one of the most popular bets in the Kentucky Derby field. Trainer Bob Baffert has won the race five times in his career, including two of the past four years. Improbable finished second to favorite Omaha Beach at the Arkansas Derby — will he be able to flip their results come Saturday?
6. Vekoma (20/1)
Trainer/Jockey: George Weaver/Javier Castellano
Career wins: 3
Recent result: 1st at Blue Grass Stakes
One thing to know: Vekoma has won three of the four races he's run in his career, but will be facing a much more talented field than he's seen before. He's an interesting choice to sneak into the top three, but it's not yet clear how he'll run when there are 19 other horses on the track.
7. Maximum Security (10/1)
Trainer/Jockey: Jason Servis/Luis Saez
Career wins: 4
Recent result: 1st at Florida Derby
One thing to know: Maximum Security is an intriguing bet to win on Saturday, as he is so far undefeated in four races in his career. Maximum Security is also racing out of the seventh gate, which Justify started from last year en route to winning the Triple Crown. It's not easy to win the Derby wire-to-wire, but if he can hold off a more powerful challenge than he received in Florida, he could be a contender on Saturday.
8. Tacitus (10/1)
Trainer/Jockey: William Mott/Jose Ortiz
Career wins: 3
Recent result: 1st at Wood Memorial
One thing to know: Tacitus had to fight through plenty of traffic en route to winning the Wood Memorial, erasing a huge lead, and closing strong to win his final tune-up before the Kentucky Derby. For casual fans, Tacitus should be an easy horse to track through the race on Saturday — he'll be the gray close to the front.
9. Plus Que Parfait (30/1)
Trainer/Jockey: Brendan Walsh/Ricardo Santana Jr.
Career wins: 2
Recent result: 1st at UAE Derby
One thing to know: Last year's UAE Derby winner Mendelssohn entered the Kentucky Derby as the second-favorite in the field after winning his final tune-up by a whopping 17 lengths. Come Derby Saturday, Mendelssohn was the last horse across the line. Plus Que Parfait is hoping he can be the horse that finally captures both races.
10. Cutting Humor (30/1)
Trainer/Jockey: Todd Pletcher/Corey Lanerie
Career wins: 2
Recent result: 1st at Sunland Derby
One thing to know: Cutting Humor will likely be a popular longshot bet thanks to the success trainer Todd Pletcher has had in the past. But he's a deserving pick on his merit. If he's not too far off the lead heading into the home stretch, he could close late and find himself a top finisher.
11. Haikal (30/1)
Trainer/Jockey: Kiaran Mclaughlin/Rajiv Maragh
Career wins: 3
Recent result: 3rd at Wood Memorial
One thing to know: Haikal finished third at the Wood Memorial behind fellow Derby entrants Tax and Tacitus. Racing out of the gate next to favorite Omaha Beach, it's tough to imagine Haikal finishing in the top three unless he pulls off quite a race.
12. Omaha Beach (4/1)
Trainer/Jockey: Richard Mandella/Mike Smith
Career wins: 3
Recent result: 1st at Arkansas Derby
One thing to know: Omaha Beach enters the Kentucky Derby having won his past three races and was listed as the morning line favorite when post positions were drawn on Tuesday. He'll hope to keep one of the biggest trends in horse racing going — the past six Kentucky Derby favorites have gone on to win the roses.
13. Code of Honor (15/1)
Trainer/Jockey: Shug McGaughey/John Velazquez
Career wins: 2
Recent result: 3rd at Florida Derby
One thing to know: Trainer Shug McGaughey won the 2013 Kentucky Derby with Orb, and this year, believes he has another contender to win the roses. While Code of Honor on the smaller side, his slender build could help him stay elusive and slip through tight gaps in the crowded field.
14. Win Win Win (15/1)
Trainer/Jockey: Michael Trombetta/Julian Pimentel
Career wins: 1
Recent result: 2nd at Blue Grass Stakes
One thing to know: Win Win Win closed strong at the Tampa Bay Derby but struggled early to find his path through the tightly packed competition. His chances on Saturday will depend on a clean start and a similarly strong finish.
15. Master Fencer (50/1)
Trainer/Jockey: Koichi Tsunoda/Julien Leparoux
Career wins: 2
Recent result: 2nd at Fukuryu Stakes
One thing to know: Master Fencer is the first-ever colt bred in Japan to race in the Kentucky Derby. His chances are long, and he would likely be considered the biggest shocker of the field if he went on to win on Saturday.
16. Game Winner (5/1)
Trainer/Jockey: Bob Baffert/Joel Rosario
Career wins: 4
Recent result: 2nd at Santa Anita Derby
One thing to know: Game Winner won the first four races of his career and came in second in the past two, with narrow defeats to fellow Kentucky Derby contenders Omaha Beach and Roadster. Is this the race he breaks through to beat them?
17. Roadster (6/1)
Trainer/Jockey: Bob Baffert/Florent Geroux
Career wins: 3
Recent result: 1st at Santa Anita Derby
One thing to know: History is not on Roadster's side, as no horse has ever won the Kentucky Derby out of the 17th gate. Still, Roadster's win at the Santa Anita Derby is promising, as it's also the final race Justify won before his dominant run at the Kentucky Derby last year. With two of Baffert's horses next to each other in the outer gates, it's possible they keep the race neck-and-neck through the entire run.
18. Long Range Toddy (30/1)
Trainer/Jockey: Steven Asmussen/Jon Court
Career wins: 3
Recent result: 6th at Arkansas Derby
One thing to know: Long Range Toddy has three career wins, but finished a disappointing sixth at the Arkansas Derby — a race that saw three other horses that will be in the gates at Churchill Downs win, place, and show. He'll need to improve on that performance if he's to break into the money at the Kentucky Derby.
19. Spinoff (30/1)
Trainer/Jockey: Todd Pletcher/Manuel Franco
Career wins: 2
Recent result: 2nd Louisiana Derby
One thing to know: Spinoff has only raced four times in his career, but it's tough ever to count out a Pletcher horse. He'll need the best race of his young life to contend this weekend.
20. Country House (30/1)
Trainer/Jockey: William Mott/Flavien Prat
Career wins: 1
Recent result: 3rd at Arkansas Derby
One thing to know: Country House ran well in both the Arkansas Derby and the Louisiana Derby in preparation for Saturday's race at Churchill Downs. As a strong closer, the outside start shouldn't be too detrimental to his chances. While he has an uphill battle to win the roses, a blazing finish could find him in the top four, making him a potential pick for trifecta and superfecta bettors.
Read more on the Kentucky Derby:
Kentucky Derby 2019: Post positions and odds for the first race of the Triple Crown
67 wild hats people have worn to the Kentucky Derby over the years
A Kentucky Derby jockey explains why changing horses is one of the hardest aspects of his job
Kentucky Derby 2019: A beginner's guide to betting the biggest horse race of the year