Table schema:
CREATE TABLE table_18602462_22 (round_of_32 VARCHAR, round_of_16 VARCHAR)

Question: How many round of 32 results are followed by Polidori ( Ita ) w 6-1, 3-6, 6-3 in the round of 16?
SQL: SELECT COUNT(round_of_32) FROM table_18602462_22 WHERE round_of_16 = "Polidori ( ITA ) W 6-1, 3-6, 6-3"