7.00pm GMT Juvenile Fillies’ A tricky task to assess the relative merits of three top-class juvenile dirt fillies, one from the east coast, one from the west and another from Kentucky. Heavenly Love powered five lengths clear of her field in a Grade One last time and may just have the edge over Separationofpowers and Moonshine Memories.

7.37 Turf Sprint The eagerly awaited rematch between Marsha and Lady Aurelia, who were separated by a nose in the Nunthorpe at York in August, and it is on Lady Aurelia’s home turf. Wesley Ward, her trainer, has suggested that this is a “closer’s track”, which should suit a fast finisher like Marsha, but the run from the home turn to the line is so short that it is hard to imagine Luke Morris having enough turf to work with. The heart is longing to see Sir Mark Prescott win with his first runner at the Breeders’ Cup, but the head says that on this track and ground, Lady Aurelia will be too good.

8.14 Filly and Mare Sprint Not a sprint as Europeans would recognise it, as it is staged over seven furlongs, but the three-year-old Unique Bella has form from six-and-a-half furlongs to beyond a mile and is very much the one to back. Jerry Hollendorfer’s filly has won her last five starts by an aggregate of 32 lengths and returned from a seven-month lay-off with a typically commanding win in the L A Woman Stakes at Santa Anita.

9.00 Filly and Mare Turf Queen’s Trust has looked a picture in the mornings here this week, just as she did at Santa Anita last year before finishing fast to beat Lady Eli on the wire. This year’s trip is shorter at nine furlongs, which is a significant concern given the way the race unfolded in 2016. Lady Eli is a big runner again, along with Rhododendron, who was back to Group One-winning form last time, but Roger Varian’s Nezwaah is an interesting each-way alternative at around 20-1. She has been a little below form on softer ground on her last two starts but was a convincing winner of the Pretty Polly at The Curragh in July and will relish the quicker going here.

9.37 Sprint Last year’s winner, Drefong, had an unfortunate return to action in July when he swerved soon after the start and unseated his jockey. He made no mistake next time, though, when he took the seven-furlong Forego Stakes by four lengths and he has now won six of his seven completed starts. The three-year-old Takaful is talented and progressive, but still has plenty to find to beat an on-song Drefong.

Highland Reel has looked impressive during morning workouts in California. Photograph: racingfotos.com/REX/Shutterstock

10.19 Mile The draw has dealt a miserable hand to the Europeans here, with both Ribchester and Roly Poly getting double-figure stalls. The top US turf miler, World Approval, has been highly impressive on his two recent starts at this trip, and is a solid favourite as a result, but a better bet each-way could be Midnight Storm. Philip d’Amato’s front-runner should make good use of stall one, finished a close third in this race 12 months ago and has made just one start on turf since, in a Grade Two handicap over today’s course-and-distance in August. He was a close fourth, giving weight to all three of the horses in front of him, and seems to have slipped in completely under the bookies’ radar at 25-1.

10.58 Juvenile U S Navy Flag has started favourite for just one of his 10 starts this season and did not head the market for either of his Group One wins, which is a sign of the stealth with which he has progressed into a top-class two-year-old. Given his profile and connections, it would be no surprise were he to prove up to the task here and, if he runs up to his turf rating on his dirt debut, he should go very close. He has a big task on his hands against Bolt D’Oro, however, as Mick Ruis’s colt looked exceptional when winning by nearly eight lengths at Santa Anita in September, and his stamina for this extended mile is also guaranteed.

11.37 Turf Ulysses has not looked entirely at ease during the morning workouts here this week and, while Sir Michael Stoute, his trainer, seems unconcerned, it is off-putting at the prices, not least since Highland Reel has looked a picture. The trip and ground will be ideal for Aidan O’Brien’s runner, just as they were 12 months ago and while he is unlikely to get such a soft lead this time around, he should still be very difficult to reel in along a short home stretch.

12.35am Classic A huge task faces Churchill as he goes up against the best dirt horses in America in his final race, and this looks like a top-drawer renewal, too. Gun Runner, the narrow favourite to reverse Dubai World Cup form with Bob Baffert’s Arrogate, also faces two more very credible contenders from the Baffert yard in Collected and West Coast, and the last of those could be the pick of the prices.

It is certainly hard to back Arrogate on his recent form and, while the memory of his astonishing win in Dubai still lingers, it may have drawn on reserves of energy that can only be used once. Gun Runner is tough and perhaps still improving, but not as rapidly as West Coast, who like Arrogate last year has been brought along very steadily by Baffert. He is two-for-two in Grade Ones on his last two starts and could well be the one to give Baffert his fourth straight success in the Classic.

Chris Cook’s tips for Saturday’s UK races

Newmarket 12.05 Nawassi 12.35 Poetic Imagination 1.10 Kind Act 1.45 Dark Intention 2.20 Pioneer Spirit 2.55 Boynton 3.30 Lord Glitters 4.00 Medburn Dream

Wetherby 12.20 Daklondike 12.55 Kalashnikov 1.30 The Nipper 2.05 La Bague Au Roi 2.40 Wholestone 3.15 Virgilio (nb) 3.45 Diamond Fort (nap)

Ayr 12.25 Hermanus 1.00 The Cobbler Swayne 1.35 Cyrus Darius 2.10 Little Bruce 2.45 Special Catch 3.20 Mount Mews 3.50 Cydercourt

Ascot 12.40 American Gigolo 1.15 Pengo’s Boy 1.50 Copain De Classe 2.25 Quite By Chance 3.00 Verdana Blue 3.35 Braqueur D’Or 4.05 Saturdaynightfever

Newcastle 3.25 Love Conquers 3.55 Emerald Rocket 4.30 Enzo’s Lad 5.00 Cuppacoco 5.30 Dubaitwentytwenty 6.00 African Grey 6.35 Kroy 7.10 Limoncino