The side scored 12 goals worth six points each and eight behinds worth one each. Against 11.13 (79), it leads by one point. Counting goals alone misses how close the game is.
It wins the match by one point. A -1.5 line requires at least a two-point margin, so that spread pick loses.
Use the bracketed score for each side. In the example, 80 plus 79 gives 159, enough for over 158.5.
More sports: Rugby League, Rugby Union, American Football.