The 1977 Chicago Marathon was the first running of the annual marathon race in Chicago, United States and was held on September 25. The elite men's and women's races were won by Americans Dan Cloeter (2:17:52 hours) and Dorothy Doolittle (2:50:47). A total of 2128 runners finished the race. It marked a return of a full marathon race to the city, following on from the Windy City Marathon of the 1960s.^[1]

Position	Athlete	Nationality	Time
	Dan Cloeter	United States	2:17:52
	Jim Macnider	United States	2:22:49
	Dave Elger	United States	2:25:25
4	Steven Flanagan	United States	2:26:47
5	Gary Barrett	United States	2:27:41
6	Walter Crawford	United States	2:28:00
7	Patrick Davis	United States	2:30:18
8	Ken Burke	United States	2:30:30
9	Roger Rouiller	United States	2:31:58
10	William Van Dyke	United States	2:32:49

Position	Athlete	Nationality	Time
	Dorothy Doolittle	United States	2:50:47
	Marilyn Bevans	United States	2:54:56
	Lynn Johnson	United States	2:58:53
4	Cheryl Flanagan	United States	2:58:53
5	Penny DeMoss	United States	3:10:37
6	Ellen O'Malley	United States	3:11:04
7	Sue Ellen Trapp	United States	3:14:09
8	Mary Burns	United States	3:15:31
9	Diana McIntosh	United States	3:30:36
10	Andrea Arena	United States	3:33:42

• Results. Association of Road Racing Statisticians. Retrieved 2020-05-26.
• Chicago Marathon Year-By-Year. Chicago Marathon. Retrieved 2020-05-26.

• Official website