CREATE TABLE table_name_8 (date VARCHAR2, margin_of_victory VARCHAR2, to_par VARCHAR2)

A tournament on which date has a margin of victory of 2 strokes and a par of 16?
SELECT date FROM table_name_8 WHERE margin_of_victory = "2 strokes" AND to_par = "−16"
SELECT "date" FROM "table_name_8" WHERE "2 strokes" = "margin_of_victory" AND "to_par" = "−16"