Dexter Dunn drove five winners at Invercargill yesterday, taking his tally for the season to 109.
He had driven 57 winners at this time last season.
He carried on to top the premiership with 146 wins.
The record for a season is 161 wins by Maurice McKendry in the 1988-89 season.
Dunn won with Justastorm, Casarina, Raindowne, Robyn's Cullen and Washington Seattle yesterday.
Casarina was impressive in the race for 2yr-old fillies when she led throughout at her first start.
She is trained by Mark Purdon and Grant Payne, who prepare the 2yr-old filly, Lancome, who is unbeaten in two starts.
Casarina was a $33,000 purchase at the 2008 premier yearling sale.
She is raced by Neil Pilcher, of Christchurch, Bill Grice, of Lorneville and G Douglas.
She is by McArdle from Magnificent Yield, a Butler B G mare.
Dunn (19) drove five winners at a Forbury Park meeting in June.
• Auckland Reactor will miss the City Of Auckland Free-For-All at Alexandra Park on Friday night after a minor leg injury.
Co-trainer Mark Purdon observed the cut to fetlock on Saturday.
He said Auckland Reactor may have over-reached when galloping in his paddock at Rolleston.
Purdon does not consider the injury will prevent Auckland Reactor starting in either the $600,000 Auckland Cup on March 6 or the Interdominion series from March 14-28 on the Gold Coast.
"It's not serious but the vet has recommended we keep him here and monitor it," Purdon said.
The TAB has suspended betting on the Auckland Cup and the Interdominions.
Auckland Reactor opened a $2.40 favourite for the Interdominion after the announcement that the $A22,000 late entry payment would be made.
• Anthony Butt was fined $300 for shifting in and checking Jazz Bromac and Corlett in the run home at Alexandra Park on Friday night when driving Stunin Cullen.
The latter ran on from the rear of the field for third.
The stipendiary stewards questioned Butt about his drive on Stunin Cullen and accepted his explanation.
He said he chose not to improve four wide at the 800m and that his horse had paced roughly at the 350m.
• Salem, a winner at Winton in December and runner-up in the NZ Sapling Stakes at Ashburton this month, was injured last week when returning from a workout at the beach, our Christchurch correspondent reports.
"A truck pulled up behind us quick and close and he got a hell of a fright and became unsettled," Robert Cameron, his trainer, said.
"He damaged a rail at the rear of the float and stripped his hind legs.
There is a possibility he may have damaged a splint bone."
• Fine Cotton, the thoroughbred at the centre of a racing scandal 25 years ago, died Friday, AAP reports.
A horse disguised as Fine Cotton won a 1500m race at Eagle Farm on August 18, 1984. Fine Cotton was an average performer and a syndicate substituted him with a horse called Bold Personality, which won by a nose after a betting plunge.
Bold Personality was painted to make him resemble Fine Cotton.
The scam was uncovered because of the large number of bets placed on Fine Cotton.