Cahill and Hyeronimus, names familiar to horse racing enthusiasts in Cowra and throughout the central west, featured in two major race victories on the eastern seaboard last Saturday.
Michael Cahill guided the New Zealand trained The Bostonian to victory in the feature Group 1 Doomben 10,000 in Brisbane while Adam Hyeronimous was aboard Ready to Prophet when the filly saluted in the Listed Denise's Joy Stakes at Scone.
Followers of both riders would have filled their pockets with both gallopers saluting at very juicy odds.
The Bostonian returned more than $50 for the win on the NSW TAB and Ready to Prophet officially started at $26.
Hyeronimus is the son of Craig and Narelle Hyeronimus of Cowra and the grandson of former top Cowra jockey Reg Paine.
Michael Cahill served his apprenticeship in Cowra under the guidance of his father, the late Ossie Cahill.
The Bostonian's win in Saturday's feature sprint ensures the New Zealand trained galloper a start in another of Queensland's feature races, The Stradbroke Handicap next month.
Cahill is developing a close affinity with the four year old which has now had 15 starts for eight wins, four of which have been with Cahill in the saddle.
Last winter Cahill and The Bostonian combined for three straight wins during the Brisbane carnival culminating in a win in the Sunshine Coast Guineas.
He continued the association when he travelled to New Zealand earlier this year to partner the galloper in a feature race.
"I went and rode him in Otaki (New Zealand) in a group 1 and I was always going to ride him (on Saturday) provided he came here," Cahill said after Saturday's win.
"He's recovered well enough from that run and they were using this run as a stepping stone to the Stradbroke.
"I've been very lucky and had a great run," Cahill said.