Peter Moody’s up-and-coming spring star Doubtful Jack will start the favourite in this Saturday’s $350,000 Group 1 Sir Rupert Clarke Stakes (1400m) when Caulfield hosts the first two Group 1 races of the Melbourne Spring Racing Carnival.

Despite drawing out wide with barrier 10 in the 17-horse final field for the 2010 Sir Rupert Clarke Stakes, four-year-old gelding Doubtful Jack is the clear favourite currently paying $2.70 for a win through Sportsbet.

Doubtful Jack has been in career best form of late, winning four races on the trot including his last start victory in the Bobbie Lewis Quality at Flemington and will be ridden by Luke Nolen on Saturday.

Two of the other top fancies in the Sir Rupert Clarke betting are Response at $6 and $8.50 Sister Madly, two mares that are down in the weights bringing them right into contention.

Drawn favourably in barrier five, consistent mare Response is coming off two second place finishes in the Cockram Stakes and Let’s Elope Stakes this spring and could prove a good value bet.

Meanwhile, Anthony Cummings’ Redoute’s Choice mare Sister Madly is seeking her maiden Group victory after running third to More Joyous in the Sheraco Stakes last month.

Cummings is seeking back-to-back success in the Sir Rupert Clark after winning the race 12 months ago with Tuffontein.

Other notable gallopers in the Sir Rupert Clarke Stakes final field include Gold Salute likely to be at the front early, last start winner at Caulfield Rightfully Yours, Queensland galloper Woorim, Mark Kavanagh’s We’re Gonna Rock and the only Group 1 winner set to start, Kidnapped.

The 2010 Sir Rupert Clarke Stakes is scheduled to jump at 2:00pm at Caulfield on Saturday as part of elite day of action that will also be highlighted by the Group 1 Underwood Stakes (1800m).

Other Group features on the card including the Caulfield and Thousand Guineas Preludes, as well as the Group 3 Naturalism Stakes where the winner will be exempt from ballot for the Caulfield Cup.

Check out the full range of betting odds and options for this Saturday at our preferred online bookie [sportsbet], and if you sign up today you will receive a free $300 bet bundle!

2010 Sir Rupert Clarke Stakes Final Field & Barrier Draw

#	Horse	Trainer	Jockey	Br.	Weight (kg)	Hcp. Rating
1	DOUBTFUL JACK	Peter G Moody	Luke Nolen	10	58	107
2	GOLD SALUTE	Mark Riley	Damien Oliver	9	58	107
3	LA ROCKET	Dale Sutton	Stephen Baster	1	58	107
4	RIGHTFULLY YOURS	Mick Price	Glen Boss	4	58	107
5	JUNGLE RULER	Peter White	Darren Gauci	17	57	104
6	KIDNAPPED	Peter Snowden	Mark Zahra	8	57	104
7	PINNACLES	Rick Hore-Lacy	Steven Arnold	15	57	103
8	RAFFAELLO	Jim Marconi	Ben Melham	16	57	104
9	BELTROIS	Robbie Griffiths	Luke Currie	14	55	98
10	WOORIM	Robert Heathcote	Danny Nikolic	2	54.5	97
11	NO EVIDENCE NEEDED	John P Thompson	James Winks	6	53.5	96
12	RESPONSE	Mathew Ellerton & Simon Zahra	Craig Williams	5	53.5	95
13	DELAYEDREACTION (NZ)	Leon Corstens	Brent Stanley	11	53.5	93
14	ELECTROMOTIVE	Lee Freedman	Craig Newitt	13	53.5	93
15	SISTER MADLY	Anthony Cummings	Dwayne Dunn	7	53.5	93
16	GATHERING	John P Thompson	Dean Holland	3	53.5	92
17	WE’RE GONNA ROCK	Mark Kavanagh	Michael Rodd	12	53.5	77