The contest is for the best predictive model for ... an undefined objective function! Unless I missed it, I didn't see a formula of how the models will be scor

The contest is for the best predictive model for ... an undefined objective function! Unless I missed it, I didn't see a formula of how the models will be scored. For example, you can have an objective function where predicting the winner gives you a lot more points than predicting which team will not make it out of the group stage. Or you can have one where all the different stages are equally important. Depending on the scoring method, it might be advantageous to generate solutions that are not mathematically correct, that is, solutions where each row sums to 1, but the columns don't sum to 16, 8, 4, 2, 1, and 1, respectively. You really need to define what the objective function is here.