CREATE TABLE table_57237 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Round" CLOB, "Time" CLOB, "Location" CLOB)

What's the time for a round of n/a when the opponent is mikhail ilyukhin?
SELECT "Time" FROM table_57237 WHERE "Round" = 'n/a' AND "Opponent" = 'mikhail ilyukhin'
SELECT "Time" FROM "table_57237" WHERE "Opponent" = 'mikhail ilyukhin' AND "Round" = 'n/a'