Hugh Bowman is favoured to ride at least one Boxing Day winner as he tries to cement his favouritism for this season's Sydney jockeys' premiership.

Since the release of a TAB premiership market for 2012-2013, Bowman has firmed from $2.80 to be outright favourite at $2.75.

Sidelined jockey Nash Rawiller opened equal favourite with Bowman but he has drifted to $3.25.

With 25-1/2 victories, Bowman is 1-1/2 wins behind Glyn Schofield in the race for premiership honours.

He will be fancied to at least close that margin when he rides Lonace, potentially one of the best horses to accept for Wednesday's Rosehill meeting.

Lonace posted brilliant figures winning a Hawkesbury maiden race at only his second start, ironically with Rawiller in the saddle.

The four-year-old will go into the Big Brown First Crop Handicap (1100m) after two barrier trials, the latest when he split stablemate Mickelberg and former Hong Kong sprinter-miler Hypurr.

One of five rides for Bowman, Lonace is a solid favourite at $3 to make a winning return.

In a crowded premiership table, nine wins separate the same number of jockeys as the racing season approaches the five-month mark.