[2] They returned to the SP Cup in 1999 for one season, before being demoted to the Port Moresby Rugby Football League Competition.

The Vipers ended with the wooden spoon in its maiden year returning to the high level national competition, but finished strongly in the following seasons (7th in 2009, and 5th in 2010).

[3] The club is a national and flagship identity in the metropolitan city of Port Moresby and its players are from a mixture of all provinces in the country.

The Port Moresby Vipers have launched their bid to join the Knock-On Effect NSW Cup competition in Australia.

The rugby league nursery in Port Moresby is the biggest in Papua New Guinea supplying players to all PNG Digicel Cup teams and will be the backbone of the Port moresby vipers bid for the NSW Cup.