Racegoers hoping to snag a ticket for the Melbourne Cup carnival at Flemington's gates are set to be disappointed.
No tickets will be sold at Flemington racecourse under a new system introduced for this year's carnival.
Instead racegoers will need to pre-purchase tickets online or through Ticketek outlets.
Victoria Racing Club CEO David Courtney said the move to only sell pre-purchased tickets would not affect the 350,000-plus crowd expected to attend the four-event carnival.
"We want people to plan their visit and we do put limits on the number of people who attend so that's a way of managing the total crowd numbers," Mr Courtney said.
Underage drinkers and unruly patrons will also find themselves out on the street as police crack down on anti-social behaviour.
Superintendent Rod Wilson said more than 1000 police and security staff will be on hand to stamp out underage drinking and evict troublemakers.
"We are proactively sweeping through the crowds from about 2pm onwards, evicting people that are unruly before they are a problem later on in the day," Supt Wilson said on Wednesday.
Australia's premier racing event is expected to generate more than $350 million for the Victorian economy with 100,000-plus crowds expected for both the Victoria Derby on Saturday and Tuesday's Melbourne Cup.
Organisers began readying Flemington racecourse in late July with more than 17,000 workers involved in putting together the $60 million carnival.