Drawn in box five in a quality field, the son of Head Bound and It’s A She expectedly began slowly before settling on the fence in fourth place with a lap to run.
With Bubba’s Dream hightailing in front, Jethro slowly began to reel in the leaders, powering home over Destini Fireball to claim the $75,000 winner’s cheque in 34.60 over the 600-metre journey.
Grand old campaigner Don Chendo – who looks to have run his last race – finished third in another solid performance.
Jethro’s win was the 21st of his career from 44 starts, pushing his prizemoney to over $138,000 – a figure set to grow substantially on the current form of the Kel Greenough-trained star.
Earlier in the night, the Andrea Dailly-trainer Grigorieva Bale took out the Group 3 RSN Silver Bullet in fine style, running down early leader Sapporo in 30.09, who was also overtaken by Premier Boloney, who came from well back to finish second.
His win was the 12th of his career from 34 starts, with the Group 3 win seeing his prizemoney reach $92,595.