During an international athletic career that spanned 15 years, Ayre has won eleven gold, three silver, and four bronze medals at both the junior and senior levels.

He went on to earn a Bachelor of Arts Degree in Criminology from Auburn University, and in 2003 signed a lucrative shoe contract with sports apparel company Puma.

After moving to the United States, Ayre attended DeWitt Clinton High School in the Bronx, New York, where he participated in multiple sports.

Under the coaching of Edward Hector, he was voted the "1999 High School Athlete of the Year" after winning the 400-meter title at the Indoor and Outdoor National Scholastic meets.

At the age of 18, still considered a Junior athlete(U20), Ayre made his senior debut representing the Jamaica National team in the 4 × 400 meters relay at the 1999 World Indoor Championships in Maebashi, Japan.

[3] Somewhat hampered by injuries throughout his second year, Ayre regained form late in the summer of 2001 and competed for the Jamaican World Championship team in the 400-meter and 4 × 400 meters relay events.

As a junior, he continued his stellar collegiate career receiving multiple All-American honors and went on to compete in the 400-meter and 4 × 400 meters relay events at the 2002 Commonwealth Games in Manchester, England.

[7] Ayre, along with teammates Michael Blackwood, Ricardo Chambers, and Lansford Spence, finished a disappointing eighth place after being favored to win a medal.

In September 2012, after missing out on a 4th Olympic Games, Ayre introduced Maximum Velocity Performance (MVP) Fitness to his local community in Howard County, Maryland.

In 2013, Ayre led Howard Community College's men's track and field team to its first ever National Title in all of the school's sports history.