CREATE TABLE table_name_15 (wins NUMBER, events VARCHAR2, top_5 VARCHAR2)

what is the sum of wins when events is 13 and top-5 is less than 1?
SELECT SUM(wins) FROM table_name_15 WHERE events = 13 AND top_5 < 1
SELECT SUM("wins") FROM "table_name_15" WHERE "events" = 13 AND "top_5" < 1