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A deluge of rain made for a treacherous start to Melbourne Cup day, forcing delays to races and trains to Flemington Racecourse, and leading to calls for the $7.3 million feature race to be cancelled.
A small section of roofing also collapsed while large parts of the track have also been flooded
The area was drenched with more than 46mm of rain falling on Flemington before 2.30pm (NZT), prompting fears jockeys and horses were at risk of injury.
The track was downgraded immediately after Race 1 to a Heavy 8 and Race 2 was pushed back to a 1.40pm start.
Race 4, the Ronald McDonald House Charities Plate, was able to jump on-time at 2.40pm. The track was also upgraded to a Soft 7 following Legend of Condor's win in the Schweppes Flemington Fling, the fifth race of the meeting.
Jockeys complained they were unable to see at times during the first race of the meeting and Channel 7's Hamish McLachlan said officials were refusing to walk on to the track because the conditions were too dangerous