| 1920 Dayton Triangles season | |
|---|---|
| Owner | Carl Storck |
| Head coach | Bud Talbott |
| Home field | Triangle Park |
| Results | |
| Record | 5–2–2 Overall 4–2–2 APFA |
| League place | 6th APFA |
The 1920 Dayton Triangles season was the franchise's inaugural season in the American Professional Football Association (AFPA)—later named the National Football League. The Triangles entered the season coming off a 5–2–1 record in 1919 in the Ohio League. After the 1919 season, several representatives from the Ohio League wanted to form a new professional league; thus, the APFA was created. A majority of the team stayed from the 1919 team, including the coaching staff, while two players left the team.
The Triangles opened the season with a win against the Columbus Panhandles. This game is considered the first league game where two APFA teams played against each other. After a six-game winning streak, the Triangles faced their first loss of the season to the future champions, the Akron Pros. This team would give the Triangles their only two losses of the year. The Triangles finished the season with a 5–2–2 record, which earned them sixth place in the APFA standings. No players were awarded with the first team All-Pro award, Norb Sacksteder made the second team, and Frank Bacon made the third team.