Top things to know: NFL Draft RB prospects

John David Mercer/USA TODAY Sports

Eddie Lacy is rated as the top running back prospect in the 2013 class by Scouts Inc.Eddie Lacy

Lacy was the beneficiary of one of the top offensive lines in football. Lacy gained 65 percent of his yards before initial contact and averaged 4.2 yards before contact per rush. He made it at least five yards past the line of scrimmage without being touched on 35.8 percent of his rushes.

Lacy runs downhill with 64.7 percent of his rushes coming between the tackles. Lacy averaged 7.6 yards per carry on such running plays with about one in every four attempts going for at least 10 yards.

In comparison to former Alabama running back Trent Richardson, Lacy averaged 2.5 more yards per rush inside the tackles in his final college season.

Montee Ball

Ball was undoubtedly the most productive back in FBS over the last two seasons. Ball led FBS in rushing yards, rushing touchdowns and rushes of 15 yards or longer since the start of the 2011 season.

Ball gained 36.1 percent of his FBS-leading 3,750 yards on rushes outside of the tackles over the last two seasons. Ball averaged 7.1 yards per carry on such running plays with at about one in every four gaining at least 10 yards.

Andre Ellington

Ellington gained over 40 percent of his yards after contact in 2012 but struggled to gain tough yards against top competition. Ellington averaged twice as many yards after contact per rush against teams that did not finish the season ranked in the top 50 in total defense than he did against the five top-50 defenses that he faced.

Le’Veon Bell

Bell gained over half of his yards after contact and led BCS-AQ running backs with 921 yards after contact.

Marcus Lattimore

Lattimore gained 41 percent of his yards after contact in his career. Against SEC opponents, Lattimore was even better, gaining 43 percent of his yards after contact and averaging 2.0 yards after contact per rush.

Lattimore ran between the tackles on 78.9 percent of his career carries. He averaged at least 4.5 yards per carry inside the tackles in every season of his career. Lattimore was at his best in the fourth quarter, averaging 5.5 yards per run inside the tackles with 54.2 percent of his yards coming after contact.