O'Brien contender looks value as Bolger preps his Derby hope on seasonal debut in Irish Guineas

Yet again the strength in depth of the Classic generation at Ballydoyle is inviting invidious comparisons with the Turf's other superpowers. At Godolphin, in particular, a recent mood of renewal was abruptly suspended after both the first two Classics were won by their great rivals. Godolphin failed even to muster a runner in the 2,000 Guineas, while its two fancied fillies in the 1,000 Guineas both finished tailed off. The stakes will be uncomfortably high, then, when the unbeaten Mandaean measures his Investec Derby prospects in the Betfred Dante Stakes at York tomorrow. And there is commensurate significance, surely, in the fact that the imported colt will be ridden by another new recruit from France.

Born To Sea will test O'Brien's hot favourite as trainer aims for Newmarket Classic double

Though serving its traditional role as both the final fling of the jumps season and a test of the new order established at Cheltenham last month, the Punchestown Festival must this week absorb one or two challenging incongruities.

Once again, as when Most Improved hobbled away from the Craven Stakes at Newmarket on Thursday, the favourite for a key Qipco 2,000 Guineas trial has dropped out at the 11th hour. Roger Charlton has decided that it would be looking for trouble to run Top Offer in deteriorating conditions at Newbury today, just a fortnight before the Guineas, and duly scratched him from the Aon Greenham Stakes.

US glamour jockey and British counterpart gatecrash a male bastion

The current focus on the racecourse is rightly on the Cheltenham Festival, which starts three weeks tomorrow, and beyond that the Grand National. But between the two great jumping meetings comes the start of the domestic Flat turf season, and one familiar weighing-room name will be absent this year. Richard Hills, first jockey to Hamdan al-Maktoum, yesterday confirmed his retirement, intending to end his 33-year career after the Dubai World Cup at the end of next month.

It may sound sacrilegious, as Kauto Star seeks another piece of Turf history at Kempton on Boxing Day, but something equally momentous might conceivably get under way 15 minutes earlier – in a £3,500 race at Wolverhampton. Few will be paying the slightest attention to Harvard N Yale, not least with the holiday programme over jumps apparently secured by a mild weather forecast. Unlikely as it seems, however, this young colt will be taking the first tentative steps towards a summit never yet scaled from this side of the Atlantic.

O'Brien's five year-old is pushed all the way by determined giant filly but holds on to land Ireland's premier 10-furlong contest

Scraps from Frankel's table must suffice for British punters this weekend, albeit something rather closer to a square meal is available to those broadening their horizons overseas.

The whole dynamic of the jockeys' championship has changed since Kieren Fallon won it for a sixth time, back in 2003. Even so, the milestone he reached yesterday, when riding his 100th winner of the campaign, confirmed he could yet roll back the years at 46. Fallon still ended the afternoon 11 behind the defending champion, Paul Hanagan, but the satisfaction he would obtain from retrieving the title, after all his notorious vicissitudes, guarantees that he will be giving it everything during the coming weeks.

The show yesterday may have been at Newmarket, with the spectacular annual race for grey horses, but the substance was at Newbury where Excelebration and Census once again emphasised the superior quality of this year's crop of three-year-olds and, in the former's case, one three-year-old in particular.

It seems typical of racing that one of its greatest celebrations, as a game without frontiers, should be overshadowed by a reminder that the most perilous boundaries can be those closest to home.

One of the leading fancies for next week's Nunthorpe Stakes, Bated Breath, is at risk of missing the York's Group One sprint feature after bruising a foot. The progressive four-year-old, who beat all bar Dream Ahead in the July Cup at Newmarket, is 7-1, challenging for third favouritism, in most lists to take the Coolmore-sponsored prize.