Table schema:
CREATE TABLE table_name_45 (year VARCHAR, regular_season_champion_s_ VARCHAR, tournament_venue VARCHAR, record VARCHAR)

Question: When has a Tournament venue of richmond arena, and a Record of 12–1, and a Regular Season Champion(s) of virginia tech?
SQL: SELECT year FROM table_name_45 WHERE tournament_venue = "richmond arena" AND record = "12–1" AND regular_season_champion_s_ = "virginia tech"