But earlier in the day, Bosson didn't ride Cool Aza Beel out to the line after being squeezed out of a gap at the 150m mark, missing third by a nose.
He couldn't have won the race but place punters don't care about that and Bosson admitted the charge, so after Wednesday, he is suspended for three weeks.
Matt Cameron is also sidelined after being kicked in the knee by a horse last Friday and will see a specialist this week.
"I don't have a fracture but I am worried about the ligaments around my knee, so I will know more after that appointment," said Cameron.
Cameron Lammas also missed the Counties meeting after suffering a thumb injury, while champion jockey Lisa Allpress is suspended until next Thursday.
With Michael McNab already serving a suspension, Ashvin Goindasamy and Donavan Mansour injured and the usual Central Districts meeting clashing with Ellerslie next Saturday, there are going to be some trainers scrambling for riders as the premier track starts a busy period with six meetings in 32 days.