Luckygray remains favourite to go back-to-back in the Group One Railway Stakes despite being given topweight for the feature race in Perth.

Last Saturday's Lee Steere Stakes winner has been given 58kg for the $1 million event at Ascot on November 24 but is at $4.40 with TAB fixed odds ahead of the Emirates Stakes runner-up Fawkner at $5 and three-year-old Luke's Luck at $6.50.

Fawkner has 56.5kg while Luke's Luck has 51kg.

Epsom Handicap winner Fat Al, who disappointed in the Emirates Stakes on Saturday, is one of four horses handicapped on 57kg along with high-profile West Australian galloper Playing God.

The Railway Stakes is one of two Group Ones at Ascot on Saturday week along with the $500,000 Winterbottom Stakes (1200m) which is run under weight-for-age conditions.

Perth sprinter Barakey is the Winterbottom favourite.

He made it 10 wins from as many starts in the Group Three Colonel Reeves Stakes (1100m) last Tuesday.