SELECT "Opponent" FROM table_45146 WHERE "Res." = 'win' AND "Time" = '1:21'
Who was the opponent in the bout that led to a win in a time of 1:21?
CREATE TABLE table_45146 (
    "Res." text,
    "Record" text,
    "Opponent" text,
    "Method" text,
    "Event" text,
    "Round" real,
    "Time" text,
    "Location" text
)