I think that one of the following things occurred:
1) argos meant for the finals to be completed after 2 successful kills [just like earlier rounds] - which seems to be the case since he named me champion
2) argos sent game 3 PMs to all the other participants and people didn't join in time
3) argos had something come up and realized he wouldn't have time to complete the tournament and therefore used the existing results with me having a considerable lead