Rosehill Guineas 2026 Betting Tips - Autumn Boy vs Observer Showdown

Alex Marsh

Editor

Last updated: Wed. 18 Mar. 2026 16:05

Alex Marsh 18 Mar. 2026

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Autumn Boy is the favourite for the 2026 Rosehill Guineas
Observer and Autumn Boy renew rivalry after their Caulfield Guineas clash
Deal Done Fast is a promising outsider arriving off a strong return

Expired

Autumn Boy defeating Planet Red and Observer in the 2025 Caulfield Guineas (Getty)

The Rosehill Guineas is a key feature of the early autumn, bringing together a talented three-year-old crop stepping up to 2000m at Group 1 level.

2026 Rosehill Guineas Tips
2026 Rosehill Guineas - Field & Odds

First run in 1910 and elevated to Group 1 status in 1980, the race boasts an honour roll that includes Phar Lap, Tulloch, Kingston Town, Octagonal and Anamoe.

Autumn Boy heads the market for the 2026 Rosehill Guineas, with $2.20 his quote via Picklebet.

2026 Rosehill Guineas Tips

2026 Rosehill Guineas Best Bet - Autumn Boy

Autumn Boy and Observer renew their rivalry, with these two colts the only runners in single figures for the Rosehill Guineas.

The Chris Waller-trained youngster got the better of Observer in their Caulfield Guineas clash back in spring.

Much was made of the unlucky run of Observer in that 1600m feature, but he was still beaten 2.5 lengths and Autumn Boy also had to overcome some trouble.

Observer won his next four appearances, two at Group 1 level, whereas Autumn Boy was spelled after the Caulfield Guineas and resumed with a solid run in the Hobartville Stakes before running into a freak in Sheza Alibi in the Randwick Guineas.

He still put a good margin on third, and while untried at 2000m, breeding and that latest effort suggest he is looking for it now.

2026 Rosehill Guineas Value Bet - Deal Done Fast

Deal Done Fast is an interesting runner from Victoria, contesting this as a maiden but potentially on an Australian Derby path.

There are form lines tying through Observer, having finished third behind him in the Victoria Derby before a spell.

He lacked the turn-of-foot of the favourite on that occasion but was still good through the line.

His Autumn Classic resumption on February 21 was a cracker, making ground from the rear with the fastest closing sectionals of that Group 2.

The son of Dundeel now gets Damian Lane in the saddle and is clearly going well enough to warrant the trip north, bypassing some softer options closer to home.

2026 Rosehill Guineas - Field & Odds

No.	Horse	Trainer	Jockey	Barrier	Weight	Odds
1	Observer	Ciaron Maher	Craig Williams	2	56.5kg	$2.75
2	Autumn Boy	Chris Waller	James McDonald	3	56.5kg	$2.20
3	Deal Done Fast	Matt Cumani	Damian Lane	5	56.5kg	$21
4	Green Spaces	Bjorn Baker	Rachel King	8	56.5kg	$11
5	Victorious Spirit	Peter G Moody & Katherine Coleman	Zac Spain	7	56.5kg	$11
6	Federalist	Michael, John & Wayne Hawkes	Dylan Gibbons	1	56.5kg	$10
7	One Step Closer	Tom Charlton	Zac Lloyd	9	56.5kg	$126
8	Bingi	Peter G Moody & Katherine Coleman	Ben Melham	6	56.5kg	$26
9	Are You Kidding	Paul Messara & Leah Gavranich	Kerrin McEvoy	4	56.5kg	$226