CREATE TABLE table_42037 ("Date" TEXT, "Score" TEXT, "Set 1" TEXT, "Set 2" TEXT, "Set 3" TEXT, "Set 4" TEXT, "Set 5" TEXT, "Total" TEXT)

What date has a set 4 of 25-19?
SELECT "Date" FROM table_42037 WHERE "Set 4" = '25-19'
SELECT "Date" FROM "table_42037" WHERE "Set 4" = '25-19'