Kolkata/IBNS, March 4 -- A breathtaking onslaught from Finn Allen powered New Zealand into the final of the ICC Men's T20 World Cup, as the Black Caps thrashed South Africa by nine wickets in the first semifinal at the Eden Gardens on Wednesday.

Finn Allen celebrates his hundred. Photo: Avishek Mitra/IBNS

Allen smashed the fastest-ever century in Men's T20 World Cup history, hammering an unbeaten 100 off just 33 balls to anchor New Zealand's chase of 170 in jaw-dropping fashion.

The Kiwis romped home at 173/1 with more than seven overs to spare, dismantling a South African side that had been unbeaten until the Kolkata clash.

Finn Allen fires against South African bowlers. Photo: Avishek Mitra/IBNS

Opening alongside wicketkeeper-batte...