Goodwood's Blue Square Nassau Stakes was first run in 1840, but it was not until 1999 that the 1m 2f event for fillies and mares was upgraded to Group 1 level.
This years renewal has attracted only seven runners but what it lacks in numbers it makes up for in quality.
The home defence is headed by the Henry Cecil trained Midday, favourite at odds of 9/4 with most bookmakers.
The Oasis Dream filly, 2 1/4 length winner from Rainbow View in last years contest, is a high class animal who ended her 3 year-old campaign with a victory at the Breeders' Cup in Santa Anita.
Tom Queally's mount looks to have most to fear from two very good French fillies in the shape of Stacelita and Rosanara.
Both horses are 7/2 shots in the betting for tomorrows race, although Rosanara can be backed at a standout 4/1 with StanJames, who are offering a £25 free bet to new customers.
Stacelita has looked a super filly on occasions but will encounter ground much faster than she is used to on her home soil, which suits the filly so well.
Rosanara has been highly tried this season and has not had the best of luck so far.
Gerald Mosse's mount met trouble in running when a close 4th behind Special Duty in the French 1000 Guineas, but was put in her place when second to Sarafina in the Prix De Diane ( French Oaks ).
The field is completed by Antara, Barshiba, Strawberrydaiquiri and Contredanse who are all capable of running big races, but if Midday runs up to her best tomorrow the rest could be running for second prize money.
Goodwood's big betting heat tomorrow is the £100,000 Bluesq.com Stewards' Cup run at 3.40 pm.
With high numbers looking to hold a draw advantage the race can go to the lightly raced Enact, trained by Sir Michael Stoute and ridden by Ryan Moore..
The daughter of top class sprinter Kyllachy, the 4 year-old looks potentially Group 3 class and odds of 9/1 with Ladbrokes looks fair value.