Ryan Moore gives us his opinion on the six horses he's riding on Sunday in France...
13:00 Longchamp - Ballydoyle
I like Ballydoyle, she has been progressive all year. She was a little unlucky not to win the Chesham Stakes at Royal Ascot on just her second run, then she won her maiden at Newmarket's July meeting and she stepped forward from that to win the Group 2 Debutante Stakes at The Curragh.
She was beaten by her stable companion Minding in the Group 1 Moyglare Stud Stakes last time, but the ground was a little easier than ideal for her that day, and the winner is a good filly. Ballydoyle should be better on the better ground today, and the step up to a mile should suit her well.
Of the French fillies, Antonoe looks the biggest danger. She won her maiden by over six lengths at Deauville, and she followed up by winning a Group 3 race at Chantilly three weeks ago. She is also progressive, but Ballydoyle has solid Group 1 form, and I think that the rest of them have my filly to beat.
13:35 Longchamp - Johannes Vermeer
Johannes Vermeer's form is solid. He was impressive in winning his maiden at Killarney in August, and he battled on well to land a Group 3 race at Leopardstown on Irish Champions' Weekend.
That race is working out well, with runner-up True Solitaire beaten just a short head in the Beresford Stakes last weekend, and with third-place Sanus Per Aquam winning the Somerville Tattersall Stakes on his next run. He is progressive and he is tough, and he stays a mile well.
The British and Irish horses bring classier form into the race than the French horses. Herald The Dawn is highly regarded by Jim Bolger, he finished second to Air Force Blue in the Group 1 National Stakes at The Curragh last month on easy ground. He will be better on the better ground that he will get today, and he is a danger.
Galileo Gold is also a danger, he was good in winning the Vintage Stakes at Glorious Goodwood, and the step up to a mile should be fine for him. It's a good race, but my horse had a good chance.
14:10 Longchamp - Diamondsandrubies
Diamondsandrubies has been disappointing on her last two runs. Before that, she had been progressing nicely. She was a good winner of the Cheshire Oaks, she was unlucky in the Oaks itself, and she won the Pretty Polly Stakes at The Curragh. She just hasn't been able to reproduce that form in her two runs since, albeit that they were both in Group 1 races.
It's a good race, it's a decent Prix de l'Opera. Covert Love is the Irish Oaks winner and Jazzi Top was impressive at Deauville last time. However, the one that I fear most is We Are. She hasn't won in three runs this season, but she got to within four lengths of Treve at Saint-Cloud on her penultimate run. She won this race last year, and you can be sure that Freddy Head will have her primed for this.
Diamondsandrubies needs to come back to her best to give herself a chance.
14:55 Longchamp - Found
I have always liked Found, I have always thought that she is a high-class filly, and Aidan has had the Arc in mind for her for a while. She had her issues in the spring, but she was impressive in winning the Royal Whip Stakes and she ran a big race to split Golden Horn and Free Eagle in the Irish Champion Stakes.
We have always thought that she would get a mile and a half. She could improve for stepping up in trip. Her draw in stall 15 is not ideal, but I am looking forward to riding her.
It will obviously be difficult to beat Treve. She looked very impressive the last day in the Vermeille. No horse has ever won the Arc three times, but she is an extraordinary mare.
New Bay has done very little wrong all year, he has won the Prix du Jockey Club and the Prix Niel, and he is well-drawn in stall five. And Golden Horn is back on track, he showed a lot of courage in winning the Irish Champion Stakes. There is the worry that he has done a lot this season already, but he is a high-class colt and fast ground and a mile and a half probably represent optimum conditions for him.
Free Eagle ran well in the Irish Champion Stakes. He will have to step forward from that if he is to win the Arc, but he is a lightly-raced four-year-old, and he is trained by a top trainer in Dermot Weld.
Dolniya has been a bit disappointing recently, but she has been trained for the Arc all season. Prince Gibraltar is a classy horse on soft ground, but he probably does need easy conditions. Tapestry was disappointing in the race last year, but she ran really well in the Blandford Stakes on her only run this season, going down by just a half a length to Ribbons. A mile and a half on fast ground is perfect for her.
It is also perfect for Flintshire. He ran a massive race to finish second to Treve last year, and the ground is coming in his favour now. He is a classy horse on fast ground, and he could run a big race.
I think that Treve is the most likely winner, obviously, but I hope that Found will run a big race, and I see Flintshire as a big danger.
16:50 Longchamp - Limato
The ride on Limato in the Prix de la Foret was a really good ride to pick up. He is in great form, and he was most impressive in winning at Doncaster last time on his first attempt at seven furlongs. I'm really looking forward to riding him.
Gordon Lord Byron always runs well in this race, he has won it once and finished second in it twice, and you can be sure that he will run his race again.
Make Believe was well beaten behind Gleneagles in the St James's Palace Stakes on his last run, but he beat New Bay into second place when he won the French 2000 Guineas, and he is trained by Andre Fabre, so this day has probably been his target for a while.
17:20 Longchamp - Clondaw Warrior
I think that Clondaw Warrior would have plenty to find to win a Prix du Cadran, but this may not be the strongest renewal of the race. He won the Ascot Stakes at Royal Ascot and, while that was only a handicap, he did finish a close second to Pallasator in the Group 2 Doncaster Cup on his last run. The step back up to two and a half miles should suit him well.
Litigant is interesting, having his first run since he won the Ebor. He has had his problems, but he is a lightly-raced horse who has the potential to progress again.
Bathyrhon was second in the race last year, and he goes well at Longchamp, while Fun Mac doesn't have much to find with Clondaw Warrior on their Ascot run. It's a competitive race.