That would be Beattie Feathers of the 1934 Chicago Bears who had 119 rushing attempts for 1004 yards and an 8.4 (8.437) yards per carry average. That was tied in 2006 by Atlanta Falcons QB Michael Vick who had 123 rushing attempts for 1039 yards and an 8.4 (8.447) yards per carry average.
Hugh Duffy of the 1894 Boston Beaneaters.
WILT CHAMBERLAIN
That would be Darren Erstad, who batted .355 in the 2000 season.
.385, Arky Vaughan, Pittsburgh Pirates, 1935
Dustin Pedroia
Rogers Hornsby who hit .380 for the 1929 Cubs.
John Olerud holds the record for highest batting average by a New York Met in a single season with .354 in 1998
The highest number of goals scored by a player in a single season is 73, achieved by Lionel Messi in the 2011-2012 season.
The highest number of points scored by a player in a single game this season was 60 points.
Ty Cobb with a .366 lifetime average. The single season leader is Hugh Duffy at .4397 in 1894.
LaDainian Tomlinson holds the record for the most touchdowns in a single season as a running back.
The NBA player with the highest number of second chance points in a single season is Andre Drummond.