Palau's Elgin Elwais lost to Hamid Iran 14-nil in the men's Greco-Roman 55kg.
American Samoa's Aetonu Silulu lost to Germany's Von Harnier in the women's 63 kg judo preliminary.
The three swimmers failed to reach the semifinal of the 100 metres free.
But a good result for Commonwealth Gold medallist Ryan Pini who broke the 50 second barrier for the first time coming home fourth in his heat.
Fiji's Carl Probert was below his personal best also finishing fourth in his heat.
But the pace was too strong for Guam's Chris Duenas who finished eighth in his heat.