"Steps have been taken to try and remedy that as best as you can do when you've got people arriving, big crowds, perhaps preloading a little bit which is one of our curses."
As with previous years there was a temporary alcohol ban on the roads around the Riccarton racecourse.
BYO is no longer permitted in the members' carpark, but patrons were still able to buy alcohol in the carpark and other licensed bar areas.
Attendance was also capped at 18,000 patrons so as to better manage the event.
A team of 20 "Drinkright Taskforce" qualified duty managers from bars across Christchurch worked with police to ensure alcohol was managed responsibly, assessed patrons for intoxication and removed them as necessary.
Drink Right taskforce leader Chris Casserly told TVNZ there was trouble getting the message out to patrons that intoxication was unacceptable.
"We won't allow people to preload before they come in. They're just not getting that message. So they're spending money on tickets, they're coming down here, they're being sent home."