The 1999 season was the San Diego Chargers' 30th in the National Football League (NFL), their 40th overall and their first under head coach Mike Riley.
During the Chargers’ first training camp in preseason, quarterback Ryan Leaf suffered a shoulder injury and missed the entire season.
Following a 4–1 start, the Chargers suffered six straight losses before winning four of their final five games to finish 8–8.
Running backs (RB) Wide receivers (WR) Tight ends (TE) Defensive linemen (DL) Defensive backs (DB) Special teams Reserve at Cinergy Field, Cincinnati, Ohio First quarter Second quarter Third quarter Fourth quarter Top passers Top rushers Top receivers
at Qualcomm Stadium, San Diego, California First quarter Second quarter Third quarter Fourth quarter Overtime Top passers Top rushers Top receivers