- A two-time national champion in the 100m at the NCAA Outdoor Championships (1998, 1999)
- A three-time All-American at BYU (100m in 1998 and 1999, 4x100m relay in 1999)
- Is one of only two BYU athletes, along with Frank Fredericks, to break 10 seconds in the 100m
- Owns the BYU record in the 60m, 6.45 in 1999, an African record
- Represented Ghana in the 2000 (Sydney) and 2004 (Greece) Summer Olympics, advancing to the 100m semifinals both times
- Won gold in the 100m (9.99) at the 1999 All-Africa Games and bronze in the 100m (10.03) at the 2003 All-Africa Games
- Represented Ghana in the Commonwealth Games
Before taking over as the sprinting coach in the 2001 season, Leonard Myles-Mills earned three All-America citations while running at BYU from 1996-1999. In his junior and senior seasons, he won back-to-back national championship titles in the 100-meter dash. He also ran on BYU's All-American 400-meters relay team, which finished third at the1999 NCAA Outdoor Track & Field Championships.
In the 2004 Summer Olympics, Myles-Mills qualified and competed for Ghana in the 4x100-meter relay and 100-meter dash. After posting a season-best time of 38.88, his team took sixth after competing together only a few times. In the 100-meters he advanced to the semifinals and ran a 10.22 but barely missed the finals.
"Leonard is a wonderful leader," said BYU track coach Mark Robison. "As a collegian, he accomplished everything you could accomplish, both indoors and outdoors. He brings a wealth of international experience with him as well. The kids like him and respect him, and he will be a tremendous asset to our program."
Myles-Mills, a native of Dansoman Accra, Ghana, represented his country in international competition by qualifying for the national team in 1998. He took third that year in the 100-meter dash at the African Championships in Senegal, which qualified him to compete in the World Cup in Athletics in Johannesburg, South Africa.
In 1999, he won first place at the All-African Games, also held in Johannesburg.
Myles-Mills competed in the 2000 Olympic Games in Sydney. He made it to the semi-finals of the 100-meter dash, finishing in ninth place overall.
"I was fortunate to have the best coaches here at BYU," Myles-Mills said. "This is a great opportunity for me to be able to come back here, to do what I know how to do, and to share some of the things I have learned with the athletes here."
In his first year as the BYU sprint coach, Myles-Mills led the Cougar sprinters to two All-America citations.
Myles-Mills is married to the former Tiffany Clawson and the couple has two boys.
- Won the 100m championship (10.20) at the 1998 NCAA Outdoor National Championships at UB Stadium in Buffalo, New York
- Repeated as the 100m champion (9.98) at the 1999 NCAA Outdoor National Championships at Bronco Stadium in Boise, Idaho
- Earned All-America First Team recognition by helping BYU's 4x100m relay team finish third at the NCAA Championships