Is this the slowest cornerback class ever? The average 40 of the top 10 ranked corners on nfl.com is 4.51. That's not great for cornerbacks. Only three of the top 10 ran a sub 4.5 And only one ran below 4.46 and that's Williams. Especially when you consider that the wide receivers have a 4.43 average time. And four of the top 10 times were in the 4.3 range.