Maury Wills of the Los Angeles Dodgers.
Wills played 165 games in the 1962 season, all 162 regular season games and 3 playoff games with the San Francisco Giants to determine the pennant winner. Playoff games at the end of the season to break ties and determine which team makes the playoffs are considered part of the regular season.
Through the 2008 season, that is Ken Sanders of the 1971 Brewers who pitched in 83 games. He led the American League in saves that year with 31.
Through the 2012 season, the Steelers have played in 54 playoff games. They have a 33-21 record.
Through the 2008 season, that is Tom Gordon who saved 46 games in the 1998 season.
4 is the amount of preseason games played by a NFL team in a season.
Jiri Crha played 54 games in the 1980-1981 season without recording a shutout, and has a total NHL streak (over multiple seasons) of 69 games. Eldon Reddick has the longest streak without a shutout (132 games) but never played more than 48 games in a single season.
Chicago Bulls won 72 games with a record of 72-10 in the 1995-96 regular season. :)
Steve Balboni. Balboni played 295 games for the Yankees from 1981-1983 and hit 36 home runs for the Royals in 1985 which is still the Royals all time season record.
Through the 2008 season, that is Paul Quantrill who pitched in 86 games in the 2004 season.
The Yankees went 114-48 in 1998 which is a franchise record
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Ernie Banks of the Chicago Cubs played in a record 2528 reguar season games (1954-1971) without ever appearing in a post season game.
Not counting the usual 4 pre-season games, the 2007 New York Giants played 20 games in the NFL season, for a final record of 14-6. They played 16 regular-season games (10-6), then won three playoff games and Super Bowl XLII.