The Australia-based athlete managed bronze medals in snatch, clean and jerk and total lifts in the women’s 75 kilogramme category.
Woonton won her first bronze medal in the snatch with a lift of 71kg followed by the second bronze in the clean and jerk, with a lift of 91kg.
In total, she managed 162kg to claim the third bronze medal.
Woonton said standing on the podium was a “pinch-me moment” for her.
“Receiving the first medals of the games is an incredible honour. The support from my team has been amazing and I’m looking forward to watching them all do well,” she said.
“A special thank you and best wishes to my team mate Luisa (Peters). Thank you to the people of the Cook Islands for your words of encouragement and support. Dad, I’m bringing home some medals!”
Cook Islands’ other medal prospect Peters competed in the women’s 90kg category last night.
Team Cook Islands chef de mission Robert Graham hailed Woonton for winning the country’s first medals at this year’s Pacific Mini Games.
“A proud moment for our team as our flag is raised here at the 2017 Pacific Mini Games. I am so happy. We should see more medals from Luisa,” Graham said.
The national beach volleyball team of brothers Brendan and Daniel Heath, who started the Commonwealth Games Qualifier on a high, lost their second match to Vanuatu 1-2 yesterday.
Vanuatu won the first set 21-19 before the Cook Islands leveled the match with a 21-13 win in the second set.
The final set went to Vanuatu 15-7.
Despite the loss, the team remains in the hunt for a semi-final berth.
In golf, the national men’s team led the table after day one competition on Tuesday.
Kristopher Williamson, who carded three under par 72, led after day one while teammates William Howard (75) finished on 12th, Jordin Manuela (80) on the 17th and Trey Shedlock (80) on 18th.
In the women’s division, top local golfer Rotana Howard finished on fourth spot after managing four over par 72.
Katey Karati on 79 managed eighth spot while Tepua Russell on 93 finished 22nd.
The golf competition will end tomorrow.