|Position:||Running back / Return specialist|
|Date of birth:||October 16, 1987|
|Place of birth:||Griffin, Georgia|
|Height:||5 ft 8 in (1.73 m)|
|Weight:||212 lb (96 kg)|
|High school:||Griffin (GA)|
|Roster status:||Restricted Free Agent|
|Career highlights and awards|
|Career NFL statistics as of Week 15, 2014|
|Stats at NFL.com|
In 2011, Rainey had 1,695 rushing yards and 17 total touchdowns while playing running back at Western Kentucky University. In 2010, Rainey was one of the top rushers in College Football. He led the nation in rushing attempts (340) and was third in the nation in rushing yards (1649). He was named the Sun Belt Conference Offensive Player of the Year in 2010 as well as earning All-American honors from SI.com. In July 2011, he was named to the Maxwell Award Watch List. In August, he was named to the Doak Walker Award Watch list. In 2009, he totaled over 2100 yards and gained notoriety as one of the premier Kick Returners in College Football. His two official forty yard dash times were 4.42 and 4.45 respectively. He was also a member of the Western Kentucky Track & Field team.
Rainey holds school records for WKU in rushing yards in a season (1,695) and rushing yards in a career (4,523). He is just the eighth FBS player since 2000 to rack up back-to-back 1,500-yard seasons. That list includes NFL running back LaDanian Tomlinson (TCU), and current NFL running backs, Ray Rice (Rutgers), DeAngelo Williams (Memphis), Darren McFadden (Arkansas) and Steven Jackson (Oregon State).
Rainey signed with the Baltimore Ravens as an undrafted free agent.
On September 10, 2012, he was released.
On September 12, 2012, he was re-signed to the practice squad and became practice squad captain
On November 13, 2012, he was placed on injured reserve due to a knee injury.
On August 31, 2013, he was released by the Baltimore Ravens.
On September 1, 2013, he was picked up by the Cleveland Browns after clearing waivers. He was released after week 7 of the 2013 season.
Tampa Bay Buccaneers
In October 2013, he was acquired off waivers by the Tampa Bay Buccaneers.
He scored his first career regular season touchdown on November 11, 2013. The TD was the eventual game-winning TD in a Buccaneers 22-19 win over the Miami Dolphins, serving as Tampa Bay's first win of the 2013 season.
On November 17, 2013, Rainey had 3 Touchdowns (2 Rushing and 1 Receiving) and 163 rushing yards in the Buccaneers' win over the Atlanta Falcons.Thanks to injuries to Doug Martin and Mike James he would finish his debut Buccaneer season as the teams leading rusher with 137 attempts for 523 yards and 5 touchdowns. He also had 11 catches for 27 yards and 1 catching touchdown.
On March 5, 2014, Rainey signed a one year deal to stay with the Tampa Bay Buccaneers.Again injuries plagued the Running back crew Featuring, Mike James and Rookie Charles Sims and a late season injury to Doug Martin leaving Rainey to again be the lone healthy work horse for the bucs bad rushing game. Despite terrible offensive line play and bad Offensive coaching Rainey still compiled 94 attempts for 406 yards and 1 Touch down only second to Doug Martin. He also had 33 catches for 315 yards and 1 receiving touchdown.
On March 10th, 2015 the Buccaneers extended a restricted free agent Tender offer of 1.5 million for 1 year to Rainey restricting him from free negotiating with any other and granting Tampa the right to match any offer he receives from other teams.
- Player file WKU Sports
-  Sports Illustrated
-  Maxwell Award
-  Doak Walker Award
- "Ravens promote Rainey to active roster, Webb placed on IR". baltimoresun.com. Retrieved October 16, 2012.
- Smith, Scott. "Rainey Re-Ups with Bucs". Buccaneers.com. Retrieved 5 March 2014.