With two feature jumps wins already this season, 10-year-old gelding heads to Sportsbet-Ballarat striving to win the rich event for a third time.

Bashboy is the the only other three-time winner of the event.

Wells, who has won the Mosstrooper and Crisp Steeplechases in his two jumps starts this campaign, has equal top weight of 71.5kg along with Sea King.

Cully has formed a successful association with Wells in the past two seasons, winning four jumps races from six rides.

He said while it was hard to be confident the gelding's big weight, he is convinced he would not be far away again.

"There's probably four or five definite chances," Cully said.

"He's got a lot of weight, but he's bringing the best form to the race by far, so he's definitely the one they all have to beat."

Wells wore down Over The Yardarm to win the Crisp at Sandown last start, carrying 70kg, and Cully said the gelding seemed more relaxed in his races this season.

"His last couple of races he's just switched off and been happy to save his energy for the last bit," Cully said.

"He's going to need it on Sunday carrying that weight, and I hear they've had a lot of rain in Ballarat so I presume it's going to be a heavy track again."

Wells won the 2014 National at Sandown when ridden by John Allen. who this year rides Over The Yardarm for Darren Weir. Wells missed 2015, but returned last year to win at Ballarat in heavy conditions.

Cully said Wells had a real will to win. 

"He probably shouldn't have run that horse down at Sandown the other day. But he loves galloping, loves jumping and loves winning," he said.

"They are three pretty good traits that a jumper should have."

The Grand National Steeple headlines a six-race all-jumps program.

BALLARAT and District Trotting Club has an eight-race card on Saturday night, with a football theme to help celebrate the historic AFL match between Western Bulldogs and Port Adelaide at Mars Stadium earlier in the day.

The trot meeting features a trotters’ monte, with all runners ridden under saddle rather than pulling a sulky.

Terang trainer Matt Craven holds a strong hand in the event, with three of the seven starters.