Table: big_12_champs
Columns: team
seasons
regular_season
tournament
total

Question: Name the average total for tournament less than 0
SQL: SELECT AVG("total") FROM big_12_champs WHERE "tournament" < 0

Question: Name the highest total for the tournament more than 0 and regular season after 8
SQL: SELECT MAX("total") FROM big_12_champs WHERE "tournament" > 0 AND "regular_season" > 8