| 4th Chicago Marathon | |
|---|---|
| Venue | Chicago, United States |
| Dates | September 28 |
| Champions | |
| Men | Frank Richardson (2:14:04) |
| Women | Sue Petersen (2:45:03) |
The 1980 Chicago Marathon was the fourth running of the annual marathon race in Chicago, United States and was held on September 28. The elite men's and women's races were won by Americans Frank Richardson (2:14:04 hours) and Sue Petersen (2:45:03). A total of 3624 runners finished the race, an increase of over 750 from the previous year.[1]