Six of the region's underground mines rescue teams were put through their paces on Friday at the 55th annual Southern Mines Rescue competition.
Appin Pink, captained by Mal Waterfall, was victorious for the third year in a row, with Appin Blue being named as runner up.
Dendrobium, Westcliff, Metropolitan and Tahmoor teams also battled it out for the prestigious title.
The competition tests first aid, and search and rescue skills.
Steven Tonegato, Mines Rescue's NSW state manager, thanked Wollongong Coal for hosting the competition at its Wongawilli mine site .
"Co-ordinating events such as these take considerable time and planning but they are an essential part of what we [Mines Rescue] are here to do," Mr Tonegato said.
Competitions are run across NSW to a standard format where teams are assessed against Mines Rescue competencies.
The winners from each of the four district competitions will be invited to compete in the Australian competition, which will be held in Queensland in October.