There hasn't been a running back selected in the first round in either of the past two NFL drafts, but that recent "trend" should change this year.
In addition, Mayock has eight running backs graded in the first three rounds -- two in the first round, four in the second and two in the third. Interestingly, eight running backs went in the first three rounds last year, but five of those went in the third round.
The first running back selected last year was Washington's Bishop Sankey, who went 54th overall to the Tennessee Titans. The first back off the board in 2013 was North Carolina's Giovani Bernard, who was chosen 37th by the Cincinnati Bengals. He was one of five backs drafted in the second round in '13, but there was just one third-round back.