A Chris Burnett penalty goal after the siren has scored Northern Suburbs a 15-13 win over Randwick in round 3 of the Tooheys New Cup.

Burnett's strike from the sideline not only secured Norths the win, but also ensured the Shoremen took top spot on the competition ladder from the Galloping Greens.

Norths began well, punishing Randwick for an early dropped ball, opening the scoring through a turnover try to Adam Ashley-Cooper after eight minutes.

However the Greens were just as quick and just as brutal with the response, securing a turnover of their own from the kick off before sending hooker Antonio Halangahu over for a try.

Neither five pointer was converted, seeing the scores level at five all after ten minutes.

Randwick enjoyed the better of the opportunities on offer over the fifteen minutes and would eventually get its reward, scrumhalf Patrick Phibbs touching down after some neat lead up work by Morgan Turinui.

Mark Sweeney was again off target with the conversion attempt, however the Greens were looking strong at 10-5 after half an hour.

Norths weren't going to take the Phibbs try lying down and as was the case earlier in the half they hit back almost immediately.

Sam Norton-Knight touching down after a break by scrumhalf Jon McGrath.

Chris Burnett's conversion saw the Shoremen head into half time with a 12-10 lead.

A Sweeney penalty goal 13 minutes into the second period put Randwick ahead by a point, but despite threatening the Norths line for much of that time the Greens could not force their way across.

An uneasy stand off then ensued lasting until the final minute of the match, Burnett nailing a penalty goal from the sideline to hand Norths the most crucial of victories.