Up to 3600 Crown Melbourne workers are set to go on strike from 6pm to 10pm on Saturday, which coincides with the $2 million Victoria Derby Day and run to Monday, the eve of the Melbourne Cup.
Work stoppages will occur for four hours between 6pm and 10pm on Saturday, 10am to 2pm on Sunday and 6pm to 10pm on Monday.
This is despite the company and the United Workers Union reaching a deal on the eve of the strike.
Crown Melbourne chief executive Michael Volkert announced in a workplace note on Friday the company and union had negotiated what was a "great outcome for team members".
Under the new, two-year deal, Mr Volkert said workers would get yearly pay increases, increased weekend allowances, improved penalty rates over Christmas, service-based progression and improved redundancy provisions.
"The proposed agreement builds on the pay increases and hourly weekend allowances that were introduced earlier this year, and importantly helps us reposition Crown and sustainable grow out business into the future," he said.
Union workers have been holding meetings since Friday to consider whether to accept the revised offer, a union spokeswoman said.Â
A decision on whether to call off the strike is set to be determined on Saturday afternoon.
Crown has confirmed it has contingencies in place to minimise the impact on patrons if the strikes go ahead.