The Arena Football League (AFL) was a professional indoor American football league in the United States. It was founded in 1987, making it the third longest-running professional football league in North America after the Canadian Football League (CFL) and the National Football League (NFL) until the AFL closed in 2019. The AFL played a proprietary code known as arena football, a form of indoor American football played on a 66-by-28 yard field (about a quarter of the surface area of an NFL field), with rules encouraging offensive performance, resulting in a faster-paced and higher-scoring game. The sport was invented in the early 1980s and patented by Jim Foster, a former executive of the United States Football League (USFL) and the NFL. Each of the league's 32 seasons culminated in the Are