Heading into last week's game against the Pittsburgh Steelers, Dolphins running back Jay Ajayi had 304 career rushing yards. With back-to-back monster games, he has added quite a few yards to that total.

Ajayi surpassed 200 rushing yards Sunday against the Buffalo Bills, making him the fourth player in NFL history to run for at least 200 in consecutive games.

.@JayTrain23 is the fourth player in @NFL history to rush for 200 yards in consecutive games. pic.twitter.com/MXSMczxkii — Miami Dolphins (@MiamiDolphins) October 23, 2016

He broke the 200-yard mark with a 14-yard run in the fourth quarter, a gain the Dolphins desperately needed as they were attempting to come back while down three points against Buffalo. He then left the field with cramps.

The most recent player to go over 200 rushing yards in back-to-back games was former Dolphins running back Ricky Williams, who accomplished the feat in December 2002. Before that it was Earl Campbell in October 1980. O.J. Simpson did it twice in his career, first in December 1973 and then again in November and December of 1976.