Yesterday, we looked at the career leaders in yards from scrimmage over “worst starter.” Today, let’s look at the single-season list.

Chris Johnson set the single-season record for yards from scrimmage in 2009, when he totaled an incredible 2,509 yards. But that’s not the record for YFS in a season on a per-game basis. That ranks only third in NFL history, behind O.J. Simpson in 1975 (not his more famous ’73 season) and Priest Holmes in 2002.

Holmes missed two games due to injury that season, while Simpson set his during a 14-game schedule. As it turns out, Simpson — who set the record for rushing yards over “worst starter” in 1973 — is your single-season yards from scrimmage over “worst starter” king based on his work in 1975.

In ’75, the 26th-ranked player in YFS gained 890 yards, while Simpson rushed for 1,817 yards and gained another 426 yards through the air. With a total of 2,243 yards from scrimmage, Simpson therefore gained 1,353 more yards than the “worst starter” or 1,546 more yards once we pro-rate to a 16-game season.

• Walter Payton and Barry Sanders lead the way with 9 seasons apiece in the top 300, although as you learned yesterday, Payton still has a big edge over Sanders. That’s because of the top 10 seasons by the duo (all in the top 125), 7 came from Payton.

• O.J. Simpson has two top-5 seasons; no one else has two in the top 15. Jim Brown has three top-25 seasons; no one else has three in the top 40, and Priest Holmes and Marshall Faulk are the only others with three top-50 seasons. Brown is the only player with 4 top-50 seasons; and Eric Dickerson is the only other player with four top-75 seasons. Brown has five top-65 seasons; Payton is the only other player with five top-100 seasons (next is Emmitt Smith, whose fifth best season is all the way down at 154). But that’s when Brown passes the baton to Payton: the Bears legend has six top-100 seasons, which nobody else can match (Brown’s 6th best year was #123).

• The Texans have four seasons in the top 300, which puts the following in some perspective. The Bengals have just one season — James Brooks, 1986 — in the top 300. Brooks ranked 3rd in yards from scrimmage that season, the only time any Bengal has ever ranked in the top 3 in that category. The Dolphins have just two top-300 seasons: Ricky Williams in ’02 and ’03. In fact, the single-season YFS leaders for Miami is just a really weird-looking list. Tampa Bay also has just two top-300 seasons, and only two times when a player gained 1,650 or more yards from scrimmage.