King Of Steel provided Frankie Dettori with the perfect send-off as they combined for a fairytale success in the Qipco Champion Stakes at Ascot.

Roger Varian’s Derby runner-up was the Italian’s final mount on British soil before jetting off for his new venture in California and they proved a match made in heaven in the British Champions Day feature.

Dettori’s historic achievements at Ascot need no introduction, but it is also the scene of some of King Of Steel’s finest performances this term, including a victory in the King Edward VII Stakes at Royal Ascot.

Placed towards the rear of the field as a lit-up My Prospero took the field along, Dettori had to be at his very best as he steered the son of Wootton Bassett from last to first.

The duo still had plenty of ground to make up as the final furlong loomed, but the stamina reserves of the 3-1 favourite kicked into top gear when it mattered most, to ensure the Dettori swansong got its ultimate conclusion and the crowds burst into raptures chanting the Italian’s name.

King Of steel came home three-quarters of a length clear of George Boughey’s filly Via Sistina, with French raider Horizon Dore back in third.

Roger Varian only has one runner on British Champions Day – but it is a headline one and he is happy to feel a bit of pressure ahead of King Of Steel’s bid for glory in the Qipco Champion Stakes.

Runner-up to Auguste Rodin in the Derby at Epsom, the giant grey went on to win the King Edward VII Stakes over 12 furlongs at the Royal meeting, as well as run with great credit in the King George and the Irish Champion Stakes.

He now tries again to secure his first top-level success and given he is Frankie Dettori’s final mount on his last afternoon in European action, there is an extra expectation on his team. But Varian is happy to be part of one of the Flat calendar’s marquee events.

“It’s a day you want to be involved in,” he said.

“Unfortunately we have only got the one runner this year, but we have done well at the meeting in the past. We’ve won the Balmoral once or twice and the last two years we’ve picked up Group One races and we would love to come home with a big prize again this year.

“We’re looking forward to it and it’s exciting. You feel a bit of pressure on the day because you should do, it matters, it’s a big deal. He’s a good horse and we want him to win a big race.

“There will be a little bit of pressure on the day, but that comes with being represented by one of the fancied horses in one of the big races. It’s a position we want to be in and we’re looking forward to it.”

King Of Steel was beaten just a length when dropping to back to a mile and a quarter in the Irish Champion Stakes and Varian is taking heart from a return to Ascot.

“We’ve been very happy with him since Leopardstown,” he said.

“We’ve consciously spread his races out, but he’s had hard races because he’s been racing at the top level and he’s not run a bad race all year.

“Saturday won’t be any easier, it’s a tough field assembled, but he very much deserves to be in the race and we think the stiff 10 furlongs will help him

“I think we can gain some confidence and positivity, but in fairness he’s gone left-handed, he’s gone right-handed, he’s gone up and down Epsom and he’s handled Leopardstown.

“Neither of them are easy tracks and he’s also gone well at Ascot, so I would say he’s an agile horse who is versatile in terms of what kind of track he runs on.

“Yes, it’s nice to know he has run well at Ascot previously, but I suppose any track would not concern me too much knowing the horse.”

John and Thady Gosden’s Mostahdaf was ridden to victory by Dettori in the Juddmonte International at York in the absence of the suspended Jim Crowley.

Crowley is back this weekend and Mostahdaf’s connections were certainly pleased the race has been moved to the inner course given his dislike of testing ground.

“John Gosden and I will walk the course in the morning. We’re very keen to run, it’s not his favoured surface, we know that, but we’ve got to make sure it’s not too soft,” said Angus Gold, racing manager for owners Shadwell.

“I realise there are other people who disagree, but from our point of view switching the courses has to help and from the race’s point of view, as a spectacle, you want the best horses so to attract them you have to run it on the best ground possible. I don’t think the soft ground horses will be inconvenienced anyway.

“We’d be lying if we thought he’d do what he did in Saudi (won by seven lengths) and since then he’s won the two top 10-furlong races on the calendar.

“It was probably our fault he hadn’t been able to show how good he was. He did only lose once at three, but we tried stretching him out to a mile and a half (last year). Clearly 10 furlongs is his trip.”

Last year’s winner Bay Bridge has perhaps not had the season anticipated by connections but Sir Michael Stoute’s five-year-old ran with credit when sixth in the Prix de l’Arc de Triomphe.

Assistant trainer James Savage said: “We’ve been very pleased with how Bay Bridge came out of the Arc, which was a tough race on ground that dried out throughout the day. He’s been working well since and he’s in good order.

“He ran well at Longchamp and was only beaten about six lengths, having done a little bit too much in Richard’s (Kingscote) hands in the early and middle parts of the race. We are pretty sure he stayed the mile and a half, as he did at Kempton, but you’d have to say that going back to Ascot in conditions we’ve been waiting for all year, he’d have a great shout.”

Horizon Dore has made giant strides this season and is among the favourites after winning the Prix Dollar on Arc weekend, his fourth successive victory.

The gelding is trained by Patrice Cottier and partly-owned by Le Haras De La Gousserie, whose manager Pauline Chehboub told Sky Sports Racing: “He is doing well, he is in good form with some freshness. The trainer is very happy with him and we can’t wait to watch him on the track again.

“He is stronger than at the start of the season. He needed time this year so we chose to stay in France for the first part of the season, with success, and now it’s time to travel and see him at Group One level.

“Just after his win in the Prix Eugene Adam at Saint-Cloud in July, (when) he showed plenty of acceleration, we chose to target Champions Day for the end of the year and now we are excited to go.”

George Boughey’s Via Sistina is another in the mix having run with credit all season. Connections plumped for this race rather than the QEII and there would be nothing better than victory in the final British Champions Series race of the year.

“Although she was in both races this has been the plan for her for a long time,” said Boughey.

“I think 10 furlongs is her optimum, and we know that she’s ground-versatile as she won the Pretty Polly on arguably the fastest ground she has ever run on, having previously impressed on soft ground in the Dahlia.

“She looks amazing for this time of year and her best performances come after a break, which she’s had since Deauville two months ago. Oisin (Murphy) already knows her well, having ridden her work when she was with Joe (Tuite). She’s a very high level performer and Oisin is a very good replacement for Jamie (Spencer), who has other commitments.”

Connections of Bay Bridge are unconcerned about conditions at Ascot ahead of the defence of his Qipco Champion Stakes crown on Saturday.

Trained by Sir Michael Stoute, the five-year-old produced a career best to end the unbeaten run of Baaeed in the Group One feature last season and returns to British Champions Day looking for a repeat of that half-length victory which came in the hands of Richard Kingscote.

That success came on ground described as good to soft, but having also finished second at Royal Ascot on good to firm ground last year, Bay Bridge appears to have few going concerns ahead of a race which may be switched to the Berkshire venue’s inner track if forecast rain turns conditions heavy on the round course.

“If he can go back and defend his crown, that would be wonderful,” said John O’Connor of Ballylinch Stud, who own the horse in partnership with James Wigan.

“At the moment the intention is to run as far as I know, but all of those final decisions will come down to Sir Michael Stoute. All I know is he was happy with him when I last spoke to him and the intention is to go to Ascot on Saturday.

“He has good form on varying ground at Ascot. He’s run well there on summer ground as well and he was maybe a little bit unlucky when touched off in the Prince of Wales’s last year.

“I don’t know myself which track they will race on, but we will just turn up on whatever track we’re told to turn up on I guess.”

A proven performer at the highest level, Bay Bridge has been a regular in some of the hottest 10-furlong contests but made a brief foray up to a mile and a half for a crack at the Prix de l’Arc de Triomphe.

The son of New Bay finished a creditable sixth behind Ace Impact in Europe’s richest middle-distance contest, with an urge to hold an early position taking its toll in the closing stages of that contest.

However, he is reported to have returned from the French capital in fine shape and now returns to his optimum distance for this Champions Day appearance.

“He appears to have come out of the Arc well and he ran very well there. For the moment we’re heading directly to Ascot, hopefully still in good form,” added O’Connor.

“In terms of the Prix de l’Arc de Triomphe, he probably did a little too much too early. You obviously need to hold your position in a race with that many runners, but he probably did a little bit too much and it probably cost him a little bit in the straight. Nonetheless he ran a really good race.”

On returning to 10 furlongs, O’Connor said: “It looks like that (is his best distance) and his highest ratings are at that trip, so hopefully dropping him back will be beneficial to him.”

Oisin Murphy has been booked to partner Via Sistina after trainer George Boughey confirmed the Qipco Champion Stakes as the intended target for his star mare at Ascot on Saturday.

A brilliant winner of the Group Two Dahlia Stakes at Newmarket in the spring, the daughter of Fastnet Rock subsequently secured Group One glory in the Pretty Polly in Ireland and has since been placed in the Falmouth Stakes and beaten a nose in the Prix Jean Romanet in France.

Connections decided against contesting the Prix de l’Opera on Arc weekend due to the prevailing fast ground and have a choice of engagements this weekend, with Via Sistina also holding an entry in the British Champions Fillies & Mares Stakes over a mile and a half.

But with rain forecast to hit the Berkshire track, Boughey is planning on running his five-year-old against the boys on British Champions Day – and with regular rider Jamie Spencer in Australia to ride Simon and Ed Crisford’s West Wind Blows in the Caulfield Cup, three-time champion jockey Murphy has been called up.

Boughey said: “It (Champion Stakes) looks very much the plan at the moment. Ten furlongs I think is her optimum trip and it looks like the ground might be in her favour.

“The forecast for France looked like it was going to dry up ahead of the Prix de l’Opera and it certainly did. Steve and Becky Hillen (owners), and fair play to them, they wanted to wait for Ascot and thankfully the rain looks like it’s coming.

“There’s a chance the race may be held on the inner loop and there could be 50 per cent more runners in the fillies’ and mares’ race, so it could get messy. I think the Champion looks the right spot for her.

“The more time she has between her runs, the better she is as well. I still think her best performance of the year was on very soft ground at Newmarket, having had a long break through the winter.

“She’s very fit and very fresh and ready to rock and roll.”

Via Sistina is set to lead a small but select Boughey team into battle at Ascot, with Believing an intended runner in the Qipco British Champions Sprint and Baradar and Raadobarg both set to contest the concluding Balmoral Handicap.

Of the latter pair, Boughey added: “The trip is a bit of a question mark for Baradar – William (Buick) will need to be very patient on him, I think. He has a good record on the horse and knows him well.

“He won well the last day and he seems to have found another leg for the cheekpieces. We know he handles very soft ground, he won the International at Ascot earlier in the season and he comes here in as good a shape as I’ve had him all year, but it’s going to be a long final furlong for him, I’d say.

“Raadobarg takes his racing very well and seems to have come out of his run in the Darley Stakes the other day (finished third) in super shape.

“He deserves his place in the line-up. He’s a big price, but arguably he might be one of the classier horses in the race and we know he handles the ground.”

Mostahdaf’s connections will keep a close eye on conditions at Ascot before making a final call on his participation in Saturday’s Qipco Champion Stakes.

Winner of the Prince of Wales’s Stakes at Royal Ascot and the Juddmonte International at York this season, John and Thady Gosden’s five-year-old is in line to return to Berkshire on Champions Day.

However, a forecast for heavy rain later in the week and the prosect of running on soft or even heavy ground is an obvious concern for a horse who has a proven preference for a fast surface.

Angus Gold, racing manager for owner-breeders Shadwell, said: “The forecast isn’t good obviously, but there’s no point making a fuss about it and we’ve got to take what we’re given.

“We’ll just keep an eye on it and I’ll speak to Sheikha Hissa and speak to John and see if we can come up with a decision between us.

“As we all know at this meeting, at this time of year, you can get very bad ground and when he raced on it in last year’s Arc he couldn’t handle that at all.

“There’s no point getting beat just for the sake of it, but at the same time we’re very keen to run and try to round off his season with another big win at Ascot.”

Connections do have a fallback option in the form of the Breeders’ Cup Turf on November 4, but they are not looking beyond Saturday at this stage.

“That was always the thing – the number one aim was Ascot and if because of the weather or whatever it didn’t come off, then we had the option of the Breeders’ Cup,” Gold added.

“We haven’t discussed it properly as we’ve always been hoping to go to Ascot.”

Horizon Dore, Mostahdaf, King Of Steel and last year’s winner Bay Bridge are among 11 horses confirmed for the Qipco Champion Stakes at Ascot on Saturday.

Cirrus Des Aigles (2011), Almanzor (2016) and Sealiway (2021) are among the recent French-trained winners of the Champions Day highlight – and having extended his winning streak to four in the Prix Dollar, Patrice Cottier’s Horizon Dore bids to add his name to the roll of honour.

The home team is led by John and Thady Gosden’s Mostahdaf, the Roger Varian-trained King Of Steel and Sir Michael Stoute’s defending champion Bay Bridge.

Mostahdaf demonstrated his top-level capabilities by winning the Prince of Wales’s Stakes at Royal Ascot and the Juddmonte International at York during the summer, but connections will be concerned about the prospect of significant rain later in the week for a horse who prefers fast ground.

King Of Steel, last seen finishing a close-up fourth in the Irish Champion Stakes, is set to be partnered by Frankie Dettori for what could be his final ride in Britain before retirement, while Bay Bridge will step back in distance after finishing sixth in the Prix de l’Arc de Triomphe.

The Gosden team have also confirmed Nashwa, while William Haggas has left in both last year’s third My Prospero and the globetrotting Dubai Honour.

Via Sistina (George Boughey), Royal Rhyme (Karl Burke) and Aidan O’Brien’s pair of Point Lonsdale and Paddington are the other acceptors, although the latter is widely expected to line up in the preceding Queen Elizabeth II Stakes over a mile.

Paddington has been one of the stars of the season for Ballydoyle, winning the Irish 2,000 Guineas, the St James’s Palace Stakes, the Coral-Eclipse and the Sussex Stakes before meeting with defeat for the first time this year when third behind Mostahdaf on the Knavesmire in August.

Among 13 possible rivals this weekend are Dermot Weld’s Irish Guineas, Coronation Stakes and Matron Stakes heroine Tahiyra, Nashwa, her stablemate Inspiral, 2000 Guineas winner Chaldean and the supplemented Angel Bleu.

The afternoon gets under way with the Qipco British Champions Long Distance Cup, which is set to stage a mouthwatering clash between Trueshan and Kyprios.

Alan King’s Trueshan has bounced back from an underwhelming start to his campaign by winning the Doncaster Cup and the Prix du Cadran in the autumn and he now gets the opportunity to land this Group Two prize for the fourth year in succession.

Kyprios won the Gold Cup, the Goodwood Cup and the Irish St Leger in 2022 before registering a remarkable 20-length verdict in the Cadran. He was beaten on his return from nearly a year on the sidelines in the Irish Leger last month, but can be expected to take a significant step forward.

Coltrane is also among 10 hopefuls, but Gold Cup hero Courage Mon Ami is a notable absentee.

Kinross (Ralph Beckett) and Shaquille (Julie Camacho) are two of 18 speedsters to stand their ground for the Qipco British Champions Sprin.

There are also 18 horses in contention for the Qipco British Champions Fillies & Mares Stakes including Free Wind (Gosdens), Time Lock (Harry and Roger Charlton), Sea Silk Road (Haggas) and the doubly engaged Via Sistina. Henry de Bromhead has supplemented Group Three winner Term Of Endearment.

The Balmoral Handicap is the concluding race and Lincoln winner Migration, trained by David Menuisier, is at the head of the weights after 32 horses were confirmed.

Ground conditions are likely to be the deciding factor in whether Onesto will contest the Qipco Champion Stakes at Ascot.

Fabrice Chappet’s stable star struck Group One gold in the Grand Prix de Paris last year before being narrowly beaten in the Irish Champion Stakes and disappointing in the Prix de l’Arc de Triomphe.

This year he did not make his comeback until August and while he was well held on his return to Leopardstown for the Irish Champion under Frankie Dettori, he bounced back to his very best to finish third behind Ace Impact and Westover in the Arc on Sunday.

Connections have the option of sending Onesto to California for a tilt at the Breeders’ Cup Turf next month – but with the weather forecast looking favourable at this stage, a trip across the Channel for British Champions Day also remains on the table.

Chappet said: “It depends on the ground. We are keeping an eye on the British Champion in case the ground will be suitable, good or good to soft. He would not go if it’s softer than that, otherwise he will go to the Breeders’ Cup.

“For us it was not a big a surprise (how well he ran in the Arc). He has been running good for most of his life and last time in Ireland things just didn’t go his way, otherwise he has run very good races.”

Wherever Onesto runs next, he can look forward to beginning his future career as a stallion in 2024.

“At this moment we are going for one of the two (Ascot or Breeders’ Cup) and next year he is going to stud,” Chappet added.

Jim Crowley is banking on reports of an imminent heatwave proving accurate to enable Mostahdaf to take his chance in the Qipco Champion Stakes at Ascot on October 21.

The John and Thady Gosden-trained five-year-old has taken his form to a completely different level this season, winning the Prince of Wales’s Stakes at Royal Ascot and ending Paddington’s winning sequence in the Juddmonte International at York.

The next logical step for a horse excelling over 10 furlongs would be the Champion Stakes, but his connections have been cautious to make too firm a plan given his liking for good ground.

They do have the Breeders’ Cup Turf in reserve, but that would mean stepping back up to a mile and a half so Crowley would love the weather forecasters’ predictions of a dry week leading into Champions Day to prove correct.

“If the ground is nice I’m sure he will take his chance,” he told Sky Sports Racing.

“The weather can change in between now and then but he’d go on good to soft, he has done in the past.

“I think if it came up very testing then he might reroute to a Breeders’ Cup or something, so that’s in the pipeline, but we’d love to get him there (Ascot) on good ground because it’s a great race and it would suit him, obviously, as a course and distance winner. It’s a very important race.

“We’ll take one step at a time and see if he goes to Ascot first, but that would be exciting if he went to America. It would be over a mile and a half, but he’s won over that distance and it’s over a tight two turns.

“He won out in Saudi and that is a similar sort of tight track to Santa Anita and he loves fast ground, so he’s got options and it’s great he’s been able to show us this season how good he really is.”