Walter Ray Williams Jr has the highest bowling average in history. With 21 events he has an average of 228.34.
Jeff Carter 261.74
The season's ending average is used as the book average for that league for the next season. In some league rules, the starting average for handicap purposes is based on that book average or it could be based on the highest of the bowler's book averages from the past season.
Jeff Carter, who bowls in the PBA averaged 261.7 in the 2000-2001 season in Springfield, Illinois.
Ty Cobb's highest season average was .424 in 1911.
The record for the highest single season batting average is held by Hugh Duffy, who batted .440 in 1894.
Hugh Duffy is credited with having the highest batting average in a season. In 1894, Duffy batted .4397
Roger Hornsby highest batting average in a season was .424 in 1924.
Wilt Chamberlain has the highest season average of 50.4 ppg
In bowling, off peak typically refers to the bowling season no longer being active. Peak season is when the bowling season is active and leagues are playing.