About 100 years before women were allowed to ride in horse races seven women, riding sidesaddle, competed in a ladies' hack race at the Waverley race track.
The winner was a Miss Walker, on Polly, and the race was in 1874.
"It was reported that the result caused such cheering as had never been heard in the Waverley District before," Waverley historian Laraine Sole said.
She has written a book about racing in those early times - Racing Days in Old Waverley: The story of the Waverley-Waitotara and Momahaki Racing Clubs 1871-1923.
It was launched at Waverley Library on September 18 and is available at Paige's Book Gallery and H & A Print in Whanganui.