To see the scoring system that a tourney is set to use, simply click the "Scoring system" tab in the Tourney Details box on the tourney page.
Usually all tourneys of the same sport will use the same scoring system, but you should make sure you know every detail of the scoring system before you set your lineup.
The scoring system for a tourney will never change once the tourney has opened.
IMPORTANT! In NASCAR tourneys, the low individual score is dropped for each team. So if the lineup configuration calls for six drivers, then only the top five drivers' scores will count toward the team total.