A blitzkrieg 18-ball half century by David Warner helped Australia cruise to an eight-wicket win over West Indies in the second T20 international at Sydney and ensured the team finished the summer unbeaten.
Since the introduction of one-day internationals in the early 1970s, Australia had had only one other summer - in the 2000-01 season - when they didn't lose a single match
Chasing 138 to win, the team from Down Under raced home with 8.2 overs to spare at the Sydney Cricket Ground on Tuesday.
Warner's fifty is the second-fastest in Twenty20 internationals, eclipsing his own 19-ball effort against South Africa at Melbourne last year.
India's Yuvraj Singh still holds the record for the fastest half century in T20 internationals, courtesy his 12-ball effort against England at Durban.
Warner's 29-ball 67 comprised five hits to the fence and seven huge ones over it.
His opening partner, Shane Watson, wasn't far behind either, contributing an effortless 33-ball 62. Watson hit four boundaries and four sixes apiece and remained unbeaten.
The duo put 99 in just 46 balls to ensure a favourable result for Australia.
Earlier, an unbeaten 40-run stand for the eighth wicket between Narsingh Deonarine (36) and Darren Sammy (26) helped West Indies recover from 98 for seven and post a respectable 137 for seven in their stipulated 20 overs.
Travis Dowlin's 31 was the only other contribution of note during the Caribbean innings.
