Single Season Home Run RecordsRoger Maris hit 61 home runs in 1961 to break Babe Ruth's single season home run record of 60 set in 1927. In 1998 Mark McGwire broke the record, and finished the season with 70 home runs. This record only held up until 2001 when Barry Bonds past McGwire, and set a new and current single season home run record with 73.
Steve Grogan of the New England Patriots holds the NFL record for rushing TDs by a quarterback in a season with 12 in 1976.
In MLB, through the 2008 season: Pitcher: Nolan Ryan of the California Angels struckout 383 batters in 1973. Batter: Mark Reynolds of the Arizona Diamondbacks holds the MLB record for striking out in a season with 204 strikeouts in 2008.
Mark McGwire hit home run number 62 to break Roger Maris' single season home run record on September 8, 1998 off Cubs pitcher Steve Trachsel.
The New York Yankees Mariano Rivera holds the all time Post season record of 33 1/3 scoreless innings pitched. Whitey Ford holds the World Series record with 33 consecutive scoreless innings pitched. Christy Mathewson pitched 27 consecutive scoreless innings in a single post season as he threw 3 shutouts in the 1905 World Series.
Reggie White set the Eagles single season record with 21 sacks in 1987.
As of the 2007 season, the Eagles single season rushing yardage record holder is Wilbert Montgomery who ran for 1,512 yards in 1979.
Jerry Rice's highest reception total in a single season was 122 in the 1995 season for the San Francisco 49ers.
Michael Strahan set the single season sack record at 22.5 sacks in the 2001 season.
Through the 2008 season, the single season NFL record for interceptions returned for a TD is 4 and is held by Ken Houston of the 1971 Houston Oilers, Jim Kearney of the 1972 Kansas City Chiefs, and Eric Allen of the 1993 Philadelphia Eagles.
Terry Glenn set the single season rookie reception record with 90 catches in 1996. The record stood for 7 seasons, until the 2003 season, when Anquan Boldin of the Arizona Cardinals caught 101 passes. Anquan Boldin is the current record holder.
Wojciech Mydra holds the single season record for blocks in NCAA history
The single season record is 73 set by Barry Bonds in 2001.
Reggie White - 21 in 1987.
The NHL single season assists record is held by Wayne Gretzky who had 163 assists in the 1985-1986 season.