Mitch Marsh blasted 85 from 43 balls as Australia beat New Zealand by six wickets Wednesday in the first Twenty20 international for the Chappell-Hadlee Trophy. Australia hit 20 fours and nine sixes on a night of high winds and low temperatures. Robinson put on 92 for the fourth wicket, a record for New Zealand against Australia, before Mitchell was out for 32. Robinson’s half century came from 31 balls, But the New Zealand innings was scrappy at times and only Robinson fully mastered the bowling. Marsh reached his half century from 23 balls, getting to the milestone with consecutive sixes off New Zealand captain Michael Bracewell.