CREATE TABLE table_name_38 (event_name VARCHAR2, race_winner VARCHAR2, track VARCHAR2)

At which event was Ken Schrader the Race Winner at the Toledo Speedway?
SELECT event_name FROM table_name_38 WHERE race_winner = "ken schrader" AND track = "toledo speedway"
SELECT "event_name" FROM "table_name_38" WHERE "ken schrader" = "race_winner" AND "toledo speedway" = "track"