CREATE TABLE table_70520 ("Date" TEXT, "Home captain" TEXT, "Away captain" TEXT, "Venue" TEXT, "Result" TEXT)

When was the match with a result of sa by 10 wkts?
SELECT "Date" FROM table_70520 WHERE "Result" = 'sa by 10 wkts'
SELECT "Date" FROM "table_70520" WHERE "Result" = 'sa by 10 wkts'