|Years Coached||Record||Win %||Playoff record||Playoff win %|
John Armstrong was a football coach in the National Football League (NFL) during the 1924 season as the head coach of the Rock Island Independents. During his lone season in the NFL the Independents went 5-2-2. He was the head coach of the Independents for the 1924 season. The Independents went 5-2-2 in this lone season as a head coach. During his career he was a head coach for one season.
|1924 Rock Island Independents||Head Coach||5-2-2||0-0|
Coach history guide
|Seasons with a championship win||Seasons with a conference championship|
- Years as head coach: 1
- Past teams coached for: Rock Island Independents