The 1996 Baltimore Orioles hit back-to-back home runs the most times in a single season in Baseball history.
For a single season the Miami Dolphins.
The Oakland A's In 2012 With 15 Walk Off wins in a single season.
Barry Bonds holds the major league records for career home runs (762) and for a single season (73 in 2001).
The player who scored the most goals in a single season in the history of the sport is Lionel Messi, with 73 goals in the 2011-2012 season.
The most ties recorded in a single NFL season is three, which has happened multiple times in league history.
The player who holds the record for scoring the most goals in a single season in professional soccer history is Lionel Messi, with 73 goals in the 2011-2012 season.
Wilt chamberlain
The team that holds the record for the most losses in a single Major League Baseball season is the 1899 Cleveland Spiders, who finished the season with a dismal 20-134 record. This team, plagued by poor performance and financial issues, remains a significant part of baseball history for its struggles. Their 134 losses represent the highest number in MLB history, showcasing the challenges faced by that franchise during that era.
No player has ever hit 400 home runs in a single season. The record is 73 set by Barry Bonds in 2001.
1982 Wichita State Shockers were 73-14 and established an NCAA record for single-season wins
As of the start of the 2008 season, the Mets single season strikeout leader is Tom Seaver who struckout 289 batters in 1971.
Ron Dayne