Career
He has personal bests of 9.88 seconds for the 100-meter dash and 20.10 seconds for the 200-meter dash. He ranks among the top ten Americans ever for the shorter distance. After graduation, he began studying part-time at Chemeketa Community College.
He relocated to Ina, Illinois in January 2009, to attend Rend Lake College, known as one of the top junior college track and field programs in the United States.
His time of 10.05 was a personal best and a national junior college record. His 100 m time made him the 13th fastest American sprinter in 2009.
He turned pro in August 2009, signing with Nike. In August 2010, Bailey ran a new personal best of 9.88 seconds in the 100 metres, finishing second only to Nesta Carter (978 s) in Rieti, Italy.
He also ran 20.10 to lower his personal best in the 200 m while placing third in the Weltklasse meet in Zurich, Switzerland and also finish the season third in the IAAF Diamond League 200 standings.
At the 2012 United States Olympic Trials, he gained a place on the Olympic team by finishing third in the 100 m final with a time of 9.93 seconds. Bailey began his Olympic debut at the 2012 Summer Olympics in London, by winning his heat in Round 1 of the 100 metres in a time of 9.88 seconds, equalling his personal best at that time. He equaled that time again in the final for a fifth-place finish.