Johnathan Thurston scored a North Queensland try and kicked four goals to lead the Cowboys to a 20-0 win over South Sydney on Sunday in the National Rugby League.
The win left the defending champion Cowboys in third place, six points behind first-place Cronulla and four points behind second-place Melbourne.
Earlier Sunday, Canberra recovered from a 22-0 deficit just before halftime to beat the Newcastle Knights 29-25 in golden point extra time.
Jordan Rapana scored the winning try after the Raiders scored four unanswered four-pointers in the final 41 minutes of regular time. It was Newcastle's 10th loss in a row.
On Saturday, the Sharks won their 12th consecutive match, beating Parramatta 34-24.
Manly plays St. George Illawarra on Monday to conclude the 17th round.