The races were held from September 2017 (when the fillies were age two) through April 2018 (when they turned three).
The top four finishers in the specified races earned points, with the highest point values awarded in the major preparatory races held in late March or early April.
[1] Churchill Downs announced the schedule for the 2018 Road to the Kentucky Oaks on August 31, 2017.
The only changes from the 2017 season were:[2] The Delta Princess Stakes, which would have been the 31st race in the series, was cancelled in the aftermath of Hurricane Harvey.
[4] The race was won by Monomoy Girl, who qualified by winning the Rachel Alexandra and Ashland Stakes.