In the week following the Preakness, the Leverage Agency was named as the exclusive marketing, sponsorship, and licensing agents for the horse.
The firm performed similar duties for California Chrome, the winner of the 2014 Derby and Preakness.
The agency secured a deal with Monster Energy for an undisclosed sum, rumored to be the largest single-horse advertising sponsorship to date.
The deal allowed the "Monster Girls" to be around the horse, and the product's logo to be used on the horse's horse sheets, on Espinoza's shirt collar, and on caps and other gear worn by people around the horse.

In the runup to the Belmont, Baffert chose to work the horse at Churchill Downs, and transport him late to Belmont Park without a timed workout at the New York track.
While several prominent trainers questioned his decision, Baffert said it was more important to keep American Pharoah "happy" on a track he liked, having used a similar strategy with his 2001 Belmont Stakes winner, Point Given.
Rival trainers Kiaran McLaughlin and D. Wayne Lukas backed Baffert's strategy; the former said, "I don't think it matters for American Pharoah.
He could probably run down a street over broken glass."
Appearing unperturbed but curious about a small crowd of well-wishers, American Pharoah arrived at Long Island MacArthur Airport on June 2, having traveled from Louisville, Kentucky, on a customized Boeing 727 dubbed "Air Horse One".

Three days before the race, American Pharoah's connections drew the number five post position.
Pundits noted it was the same slot from which Seattle Slew had won the 1977 Belmont and the Triple Crown, and that 14 other Belmont winners had started from the position.
American Pharoah was the 3–5 morning line favorite in an eight-horse field that included Tale of Verve, as well as five rivals from the Kentucky Derby who had skipped the Preakness, and one horse, Madefromlucky, who had not run either of the previous Triple Crown races, but, like Tonalist the previous year, had instead won the Peter Pan Stakes at Belmont Park.
American Pharoah had previously defeated every horse entered, but he was also the only horse to contest all three legs of the Triple Crown and had run four races in the preceding eight weeks.

American Pharoah won the Belmont Stakes on June 6, becoming the 12th Triple Crown winner and the first since 1978, ending a "drought" of 37 years.
 The horse was leaning back in the starting gate when it opened and was a touch late at the start, but he soon pulled out to an early lead, which he maintained for a gate-to-wire win.
He steadily increased his lead throughout the race.
He was challenged by Materiality until the top of the stretch when Materiality faded, ultimately finishing last, and Frosted held second although starting to fade at the sixteenth pole.
Keen Ice ran in the middle of the pack until a late rally brought him into third over Mubtaahij, who was fourth.
American Pharoah crossed the finish line leading by ​5 ¹⁄₂ lengths, with a winning time of 2:26.65 for the 1 ¹⁄₂-mile (2,400 m) race.
His margin of victory was the fourth-largest ever for a Triple Crown winner at the Belmont.

Of the victory, Baffert said, "This little horse deserves it.
There's something about this horse that he just brought it every time.
He's a joy to be around."
In a post-race interview, Zayat said that the colt's racing schedule for the remainder of the year would be decided by Baffert, and that the needs of the horse would come first.
He also acknowledged the need for horse racing to have "stars" and for them to race as long as they could.
Though American Pharoah's stud rights had been sold with plans to retire the horse at the end of 2015, Zayat expressed hope that the horse would continue racing as long as he was healthy and "has it in him".
His winning time of 2:26.65 was the sixth-fastest in Belmont history, the second-fastest for a Triple Crown winner, and his closing quarter-mile was run in 24.32 seconds, which was over a half-second faster than Secretariat's final quarter-mile time of 25.00 when the 1973 winner set a w
In the week following the Preakness, the Leverage Agency was named as the exclusive marketing, sponsorship, and licensing agents for the horse. The firm performed similar duties for California Chrome, the winner of the 2014 Derby and Preakness. The agency secured a deal with Monster Energy for an undisclosed sum, rumored to be the largest single-horse advertising sponsorship to date. The deal allowed the "Monster Girls" to be around the horse, and the product's logo to be used on the horse's horse sheets, on Espinoza's shirt collar, and on caps and other gear worn by people around the horse.
In the runup to the Belmont, Baffert chose to work the horse at Churchill Downs, and transport him late to Belmont Park without a timed workout at the New York track. While several prominent trainers questioned his decision, Baffert said it was more important to keep American Pharoah "happy" on a track he liked, having used a similar strategy with his 2001 Belmont Stakes winner, Point Given. Rival trainers Kiaran McLaughlin and D. Wayne Lukas backed Baffert's strategy; the former said, "I don't think it matters for American Pharoah. He could probably run down a street over broken glass." Appearing unperturbed but curious about a small crowd of well-wishers, American Pharoah arrived at Long Island MacArthur Airport on June 2, having traveled from Louisville, Kentucky, on a customized Boeing 727 dubbed "Air Horse One".
Three days before the race, American Pharoah's connections drew the number five post position. Pundits noted it was the same slot from which Seattle Slew had won the 1977 Belmont and the Triple Crown, and that 14 other Belmont winners had started from the position. American Pharoah was the 3–5 morning line favorite in an eight-horse field that included Tale of Verve, as well as five rivals from the Kentucky Derby who had skipped the Preakness, and one horse, Madefromlucky, who had not run either of the previous Triple Crown races, but, like Tonalist the previous year, had instead won the Peter Pan Stakes at Belmont Park. American Pharoah had previously defeated every horse entered, but he was also the only horse to contest all three legs of the Triple Crown and had run four races in the preceding eight weeks.
American Pharoah won the Belmont Stakes on June 6, becoming the 12th Triple Crown winner and the first since 1978, ending a "drought" of 37 years.  The horse was leaning back in the starting gate when it opened and was a touch late at the start, but he soon pulled out to an early lead, which he maintained for a gate-to-wire win. He steadily increased his lead throughout the race. He was challenged by Materiality until the top of the stretch when Materiality faded, ultimately finishing last, and Frosted held second although starting to fade at the sixteenth pole. Keen Ice ran in the middle of the pack until a late rally brought him into third over Mubtaahij, who was fourth. American Pharoah crossed the finish line leading by ​5 ¹⁄₂ lengths, with a winning time of 2:26.65 for the 1 ¹⁄₂-mile (2,400 m) race. His margin of victory was the fourth-largest ever for a Triple Crown winner at the Belmont.
Of the victory, Baffert said, "This little horse deserves it. There's something about this horse that he just brought it every time. He's a joy to be around." In a post-race interview, Zayat said that the colt's racing schedule for the remainder of the year would be decided by Baffert, and that the needs of the horse would come first. He also acknowledged the need for horse racing to have "stars" and for them to race as long as they could. Though American Pharoah's stud rights had been sold with plans to retire the horse at the end of 2015, Zayat expressed hope that the horse would continue racing as long as he was healthy and "has it in him". His winning time of 2:26.65 was the sixth-fastest in Belmont history, the second-fastest for a Triple Crown winner, and his closing quarter-mile was run in 24.32 seconds, which was over a half-second faster than Secretariat's final quarter-mile time of 25.00 when the 1973 winner set a w
American Pharoah