CREATE TABLE table_60476 ("Edition" TEXT, "Round" TEXT, "Date" TEXT, "Surface" TEXT, "Opponent" TEXT, "Result" TEXT)

What date was the 1988 world group i edition with a result of 7 6 (7 5) , 6 3?
SELECT "Date" FROM table_60476 WHERE "Edition" = '1988 world group i' AND "Result" = '7–6 (7–5) , 6–3'
SELECT "Date" FROM "table_60476" WHERE "Edition" = '1988 world group i' AND "Result" = '7–6 (7–5) , 6–3'