Despite looming dark skies, Women's Match Racing kicked off on Fremantle's inner harbour at 10:00. The first match was one postponed from Sunday because of calm conditions.
Easterlies gusting up to 17 knots greeted the two Spanish crews for Tuesday's first flight. A change in the official race results later in the day gave the match to Spain's Silvia Roca instead of her compatriot and rival Tamara Echegoyen as first posted in results.
Mandy Mulder (NED) and her crew won the second match by a very convincing 37 seconds against Tania Zimmermann.
In contrast, it was an exciting finish for Olivia Price (AUS) when her team beat Genevieve Tulloch (USA) by just one second.
The last match of the morning - between Sweden and Brazil - finished with another tight margin - seven seconds - favouring the Brazilians.
Late on Tuesday, the Race Committee announced that all fleet races would start at the earlier local time of 12 noon on 7 December. Competition Manager Skip Lissiman said it was hoped weather conditions would allow an extra race to be sailed in each of the four fleet classes. "Safety was the ultimate concern today," Lissiman said. "The electrical storms posed too big a danger to sailors on the water."
The other delayed races will be held on either Thursday or Friday which are nominated lay days, according to each class.
The Perth 2011 ISAF Sailing World Championships website will bring you results, tracking, live updates and all the latest news both on and off the water.