Most Consecutive Losses
The NBA record for consecutive losses in a season is 23 held by the 1996 Vancouver Grizzlies.
Cy Young. He also holds the record for the most losses as a pitcher.
The Indianapolis Colts
18 conseutive losses in 2006-2007 season
a pitcher's record for the season is his wins, then losses for example, if a pitcher won 15 games and lost 10, then his record would be 15-10