The companion race to the Iowa Derby, the Iowa Oaks has been run in late June or early July since 1997 when it was known as the Heartland Oaks. It is run at 1 1/16 miles (8.5 furlongs) on dirt for 3-year-old fillies. Fillies such as Trip, Unbridled Elaine, Baghdaria, Hightap and Sarah Sis have all won the race.
The companion race to the Iowa Derby, the Iowa Oaks has been run in late June or early July since 1997 when it was known as the Heartland Oaks. It is run at 1 1/16 miles (8.5 furlongs) on dirt for 3-year-old fillies. Fillies such as Trip, Unbridled Elaine, Baghdaria, Hightap and Sarah Sis have all won the race.