Tasmania's most experienced jockey Brendon McCoull is looking forward to having "a bit of fun" with Weldborough after steering the black gelding to victory in the opening race at Mowbray on a balmy Wednesday evening.
The 46-year-old timed his run to perfection to claim the 1120-metre Maiden.
Favourite Yanosha, ridden by Siggy Carr, led early but faded to finish last as Thelma hit the front with 200m to go only to be run down by Weldborough's impressive surge.
McCoull was delighted with the win.
"He just wanted to lay in a bit but once he straightened up he got to the line really nice and he seems a nice horse," he said.
"The form's pretty good and he's a lovely type. When I saw him I thought 'gee, he's a nice horse' .
"They thought it might have been a little bit short for him today but he was fresh and got the job done.
"He's a pretty progressive horse and I think I'll have a bit of fun with him."
Trained by Leanne Gaffney at Spreyton, Weldborough's starting price was $3.60 with Thelma $8 and third-placed Gee Gees Jennia $5.