West Indies women got a rapid record-breaking half-century from teenager Deandra Dottin but crashed to defeat yesterday when Australia defeated them by eight wickets in their ICC Women's World Twenty20 Championship match.

Electing to bat, West Indies posted 135 for eight off their 20 overs and could not prevent the Aussies from strolling to victory at 136 for two in 17.2 overs, handing the Caribbean side back-to-back defeats in Pool A.

Promoted the opening slot, Dottin blasted 50 off 22 balls, the fastest 50 ever in Women's T20 cricket.

She top-scored with 53 but had little support otherwise and the West Indies, who lost to New Zealand on Saturday, were outplayed as the Australians who rebounded well from their loss to the Kiwis on Friday.

An amazing rate

The versatile Dottin, a former Carifta Games shot put, javelin and discus champion, thumped nine fours and one six and scored at an amazing rate of better than two runs per ball in an innings from the 17-year-old that threatened to hand the Aussies their second consecutive loss.

Dottin's prolific opening partner, Stafanie Taylor, was run out for 13 after they posted exactly 50 for the first wicket.