Brumby Runner
Jason Little (69)
BR, tries are worth 5, conversions 3 and PGs/DGs 2.
With no-one going for any of the latter in the vast majority of games, the 1 point margin is simply harder to achieve.
The only way I can currently think of is that if one side has at least 3 tries, of which 3 are unconverted, and the other side has one fewer try, but 2 more conversions.
Whereas the multiples of 5, 3 and 7 far more regularly create 1 point gaps, or the nearly equally exciting 2 point gap, as a single kick can still win the match.
Thanks H35. Just had an all time massive brain explosion. But still, I think it would work better if the conversion was only 2 points as well. Try = odd, converted try = odd, penalty/field goal = even. Greater scope for the scores to be able to alternate on a late goal.