CREATE TABLE table_204_651 (id DECIMAL, "date" TEXT, "championship" TEXT, "location" TEXT, "category" TEXT, "surface" TEXT, "prev. result" TEXT, "prev. points" DECIMAL, "new points" DECIMAL, "outcome" TEXT)

on how many dates were there at least 100 prev . points ?
SELECT COUNT("date") FROM table_204_651 WHERE "prev. points" >= 100
SELECT COUNT("date") FROM "table_204_651" WHERE "prev. points" >= 100