CREATE TABLE table_204_157 (id NUMBER, "date" CLOB, "opponent#" CLOB, "rank#" CLOB, "site" CLOB, "result" CLOB)

how many games did the irish win by at least 30 points ?
SELECT COUNT(*) FROM table_204_157 WHERE "result" - "result" >= 30
SELECT COUNT(*) FROM "table_204_157" WHERE "result" - "result" >= 30