Pictured: The match-winning play in the Under 18 decider.

The Cronulla Sharks have overcome brave performances from the Townsville Stingers to clinch the Under 16 and Under 18 National Finals played at Belmore yesterday.

Cronulla won the first clash 26-20, before sneaking home 18-16 in a thrilling Under 18s clash against the unlucky Stingers.

Under 16

CRONULLA SHARKS 26 (L Metcalf 2, M Raper, F Kula, J Spanos tries; Metcalf 3 goals) def TOWNSVILLE STINGERS 20 (N Barrett, C Souter, M Baker, S James tries; T McCagh 2 goals) at Belmore Oval.

Under 18

CRONULLA SHARKS 18 (Cameron Scott 2, Curtis Scott, B Magoulias tries; J Williams goal) def TOWNSVILLE STINGERS 16 (M Dunn, B Dee, M Hudson tries; Hudson 2 goals) at Belmore Oval.