Britain's most successful female jockey Hayley Turner has returned to the saddle with a winner at Windsor ahead of her appearance in a jockeys' challenge in Sweden.

Turner retired from race riding in 2015, but will take part in the Lady Jockeys' Thoroughbred World Championships in Sweden on Tuesday (Wednesday AEST) in which New Zealander Danielle Johnson will also ride.

Turner, who now works for ITV Racing and At The Races, admitted the victory had reassured her as to her fitness for the five-race competition at Bro Park.

"It was fantastic as I've been getting fit riding out for Michael Bell," Turner told at The Races.

"I train very hard at home with hill runs. I'm in the gym all the time and I ride out, but you can't really beat race riding.

"I've got five rides in Sweden so I will be blowing even harder tomorrow!"