If we look at every pass play in the N.F.L. this season through Week 16, and then average the top speed of each receiver across all of those plays, the Rams have the fastest group with an average of 13.32 m.p.h. The Raiders, at 11.96, are slower than every other team except for the Packers, who are more than a mile and a half per hour slower than the Rams at 11.74 m.p.h.