1990 San Diego Chargers season  The San Diego Chargers season was the franchise's 21st season in the National Football League (NFL) and its 31st overall. The team matched on their 6–10 record in 1989. San Diego would struggle from season's start, losing 4 of its first 5 games before winning 4 of its next 5 games to even their record at 5-5. The Chargers would then finish the season on a 1-5 losing streak and a disappointing 4th-place finish in the AFC West.