CREATE TABLE table_name_75 (time VARCHAR, round VARCHAR, opponent VARCHAR)

What's the time for a round of n/a when the opponent is mikhail ilyukhin?
SELECT time FROM table_name_75 WHERE round = "n/a" AND opponent = "mikhail ilyukhin"
SELECT "time" FROM "table_name_75" WHERE "mikhail ilyukhin" = "opponent" AND "n/a" = "round"