Paul Mulrennan - A Jockey’s Diary: Speed and stamina of favourite should be enough to match Nijinsky feat

The feat hasn’t been accomplished since Nijinsky – hardly surprising as only two horses, Nashwan and Sea The Stars, since then have actually completed the opening two legs with a QIPCO 2000 Guineas and Investec Derby double, neither of the pair was considered for Doncaster.

Fair play to Camelot’s owners and Aidan O’Brien at Ballydoyle in Tipperary for trying to create history at Donny tomorrow.

I think Camelot will do it. He just has too much class, speed and stamina for his rivals.

Lester Piggott, who partnered Nijinsky in 1970, reckons the same – and he’s a man whose opinions should always be heeded. But I really do fancy Guarantee, trained by Yorkshireman-in-exile in Newmarket William Haggas, to run into a place. My Weighing Room colleague Phillip Makin takes the ride and I believe the track and the trip will suit this particular thoroughbred.

I thought Guarantee’s victory in the Betfred Melrose Stakes during the Welcome To Yorkshire Ebor Festival at York was a tremendous one. He enjoyed a comfortable winning distance of over three lengths and form at York is form that must be respected.

For the same reason, you could make a case that Thought Worthy, the winner of the Neptune Investment Management Great Voltigeur on Knavesmire could be the one to spoil the Ballydoyle party.

John Gosden’s colt hopes to be the 14th horse to do the Yorkshire Festival double and, given that his yard has won the final Classic three times in the last five renewals, you can see why his odds have tumbled as the week has progressed.

But we’ve already enjoyed one “were you there the day when…” afternoon at York Racecourse this year when the mighty Frankel wowed us in the Juddmonte International – I think we could be in for another at Doncaster tomorrow.

The Ladbrokes St Leger comes one race after the only one in which I am personally involved tomorrow. But what a good horse I have to ride. That’s Mass Rally in the Ladbrokes Portland Handicap at 3pm.

I am confident of his chances and no mistake. I thought we were desperately unlucky when beaten by just a quarter-of-a-length in the Symphony Group Stakes at the Ebor Festival last month.

Having been defeated by even less – a head – at Ascot in July, it’s time for Mass Rally to get his nose in front. I truly believe that trainer Michael Dods’s five-year-old will do it tomorrow. He’s in good form and undoubtedly can win a handicap like this – ultra-competitive though it will be.

I rode at Doncaster yesterday on day two of the St Leger meeting, but I am off to Chester for afternoon racing today. I am totally chuffed to have been booked to ride a horse for the great Sir Michael Stoute for the first time.

I am obviously not familiar with Commend, my mount for the Newmarket trainer in the handicap race at 4.25pm on The Roodee. He has won once from his six outings, but in the other five appearances he has been there or thereabouts for his regular jockey Ryan Moore.

I am also on board Everlong, who has yet to win, for trainer Peter Chapple-Hyam in the 2.45pm maiden fillies’ stakes, while Yorkshire handler Tim Easterby’s experienced six-year-old Clockmake goes in the handicap race at 3.55pm.

The latter’s best performance this season was probably around Chester’s bends early in the summer when he was placed, so hopefully that proves he likes a tight track and can go well again today.

Trovare’s sole victory this season was on the all-weather surface at Kempton Park. I partner the well-travelled gelding for Amanda Perrett in the 3.20pm handicap. I won for the Sussex trainer a week ago at Haydock Park, so maybe I can notch another winner just down the road at Chester.

The final two days of the Flat racing season at York Racecourse are Friday 12 and Saturday 13 October. The races include the Listed Coral Rockingham Stakes and the Coral Sprint Trophy. New for 2012 is Countryside Raceday on the Friday with a showcase of rural activity and products. Admission on Friday is £5, £13 or £24; on Saturday it’s £6, £17 or £28.

Early bird and group discounts are available booked in advance. Accompanied under 16s are admitted free of charge to all areas. More information and advance bookings at www.yorkracecourse.co.uk or by calling the racecourse on 01904 620911.