On the day before the Belmont Stakes, he was scratched due to tendonitis, ending his chances of winning the Triple Crown, and retired from racing.

[4] Davila, an exercise rider, broke and trained the colt before selling him as a two-year-old to J. Paul Reddam for $35,000 at the Ocala Breeder's sale.

"[6] After winning on his racecourse debut in July 2011, I'll Have Another finished second to Creative Cause in the Grade II Best Pal Stakes at Del Mar in August.

I'll Have Another's lead pony in the Kentucky Derby post parade on May 5, 2012, was the retired gelding Lava Man, whom Doug O'Neill had trained previously.

[13] In front of a record crowd of 165,307,[14] I'll Have Another produced a strong finish to catch the front-running Bodemeister in the closing stages and win by one and a half lengths in a final time of 2:01.83 for 1 1/4 miles.

[20] On the Friday before the Belmont Stakes was to run, trainer Doug O'Neill indicated that the horse was officially out of the race due to a tendon injury, ending his hopes of a Triple Crown.

[21] At a news conference, the track veterinarian described the injury as slow-healing, requiring up to three to six months for recovery, and if the horse had raced, the risk of a bowed tendon would be very high.

[24] On June 23, 2012, it was announced that I'll Have Another had been sold with the intent that he would be exported to stand at stud at the Big Red Farm [ja], located in Hokkaido, Japan, for the 2013 breeding season.