Our ambassador previews a busy Saturday of clashes which features the Listed August Stakes at Windsor – live on Sky Sports Racing from 4.30pm. The feature race on Sky Sports Racing on Saturday evening is the Listed Weatherbys August Stakes (6.30) which can go to my husband Tom Marquand and trainer William Haggas. They combine with the reliable Tenability who has winning form at the track and won't mind any rain, as he proved at Ascot last autumn when he chased home Al Qareem in the Cumberland Lodge. Tenability has been kept fresh since beating popular stable companion Hamish at Goodwood in June and then finishing third in a Group Three in Deauville over further than this trip. He brings more compelling recent form to the race than the intriguing Silawi, who has been disappointing given what he achieved in winning the Group One International in Canada last October and then chasing home Opera Ballo in the Jebel Hatta in Dubai in January.

The most prestigious race of the day on Saturday is the Group Two Virgin Bet Celebration Mile Stakes (3.10) at Goodwood and I won't be forsaking the likeable Zavateri, who has a great chance to gain his first win of the year. Eve Johnson Houghton's three-year-old, who is eased in grade, ran respectably behind Bow Echo in the Sussex Stakes at this track and wasn't disgraced in Notable Speech's Group One at York last weekend.

George Scott must have been tempted to pitch Forty Years On into Stakes company so it's interesting he sets out to exploit an appealing mark in the Virgin Bet Every Saturday Money Back Handicap (2.00) at Goodwood. This progressive filly, who has been raised 8lb to a rating of 96, made it four from five with a winning reappearance in easy ground at Newbury in early June so any further rain on the South Coast will be a positive. William Haggas's Too Darn Hot gelding High Degree looks capable of giving his rivals weight in the Virgin Bet A Good Bet Handicap (2.35) at Goodwood.