New Zealand Skipper Brendon McCullum has smashed the fastest ever Test ton in his final international match on day one of the Second Test Match between Australia and New Zealand at Christchurch.McCullum reached three figures in 54 balls in Christchurch, bettering the previous mark of 56 deliveries held by Viv Richards and Misbah-ul-Haq. Australia had few answers as McCullum marched to the milestone in 79 minutes. He cracked four sixes and 16 fours to post his Second Test ton against Australia.