The managing director of Newmarket believes wonder horse Frankel's final appearance at the racecourse will be a "spectacle not to be missed".
The four-year-old will have a gallop on the course ahead of Saturday's card at the Cambridgeshire meeting.
Frankel is being prepared for the final race of his career in the Champions Stakes at Ascot on 20 October.
"We've got a huge affiliation here at the racecourse with Frankel," Amy Starkey told BBC Radio Cambridgeshire.
"He is trained here by Sir Henry Cecil, he won his first race with us as a two-year-old and really is part of our heritage and recent history, winning the Guineas [in 2011].
"He is the best racehorse we will probably ever see and I'm hugely excited about his prep run here on the Rowley Mile.
"Here on Saturday is the eastern region's last opportunity to see Frankel on a racecourse."
Frankel's appearance is expected to add thousands to the gate, such is the drawing power of a horse which has won all 13 of his races, the most recent in last month's Juddmonte International at York.
"He is so special. If you walk down the street now, not just Newmarket but any High Street in the UK, they will have heard of Frankel and that's great for racing," said Starkey.
Saturday's card includes the Juddmonte Royal Lodge Stakes, won by Frankel in 2010 by a 10-length margin.
The highlight, however, will be the Cambridgeshire itself which was first run in 1839 and features more than 30 horses.
The field includes 2011 winner Prince of Johanne, but William-Haggas trained Mukhadram and Chil The Kite are more fancied this year.