Scoring

Here is how the scoring is calculated. You get 0 points if you lose an expedition. But if you win:

Base Score
3000 for winning.
100 for each pirate captured.
-100 for each nav captured.
100 for each ruby you have at the end of the expedition.
-100 for each ruby the pirates have at the end of the expedition.
300 for each treasure chest the navs dug up.
-300 for each treasure chest the pirates dug up.
600 for each treasure chest on nav ship at the end of the expedition.
-600 for each treasure chest on the pirate ship at the end of the expedition.
300 for each treasure chest being carried by the navs at end of expedition.
-300 for each treasure chest being carried by the pirates at end of expedition.

Additional Points For Winning By Capturing All Pirates
600 extra points for any treasure chests still in the ground
300 extra points for any treasure chests being carried by the navs

Cup Modified Score
Multiply the Base Score by 2 if you win a Silver Cup or by 3 if you win a Gold Cup.

Team Modified Score
Multiply the Cup Modified Score by 2 if you are playing against the B Team, by 4 if you are playing against the JV Team, or by 8 if you are playing against the Varsity Team. And that is your final score.

To maximize your score, it's crucial to be the one to dig up most of the treasure chests. Just capturing the treasure chests from the pirates won't give you the maximum score.