Boat B would win in your scenario given this second part of the rule right?
Quote
If a tie remains is shall be broken in favour of the boat that obtained her best score nearest the end of the series.


Boat A) 1.5,2,3,4,5,6,7,8,9
Boat B) 1.5,3,4,5,6,7,8,9,2


Jake Kohl