The meet features seven days of racing with 22 stakes.
Gates open at 11:30 a.m. with the first race at 12:45 p.m.
While racing was suspended, the track was investigated and the Horseracing and Safety Integrity Authority took a closer look at each death.
Tickets for the 14-day September Meet at Churchill Downs went on sale Monday, signifying a return to racing at historic racetrack in Louisville.
Keeneland will continue to limit daily attendance to approximately 20,000 fans.
The Fall Meet runs from Oct. 7-29. And the Breeders' Cup World Championships is Nov. 4-5.
The culmination of the meet will be The Breeder's Cup on Nov. 4-5.
The first event beginning on Sunday is the 17th annual "Stars of Tomorrow l" program.
There will be an attendance limit of about 20,000 people each day. The track had originally said in the summer that the fall meet would be full capacity.
The Fall Meet will be held Friday, Oct. 8 through Saturday, Oct. 30 in Lexington.