Two teams from the Americas region will secure their spot at next year's World Cup in Liverpool in England at the event.

Barbados opened the tournament with a dominant 105-10 defeat of Argentina and continued their success at the Garfield Sobers Gymnasium with a thumping 110-12 win over St Maarten.

Canada and St Vincent & Grenadines were also comfortably defeated, 70-28 and 66-31 respectively, by the strong host nation.

The hosts will play the United States and Grenada in the next two rounds with a potential showdown with Trinidad and Tobago on the final day of competition.

Trinidad and Tobago are also currently unbeaten in the event, seeing off the challenge from the US, Canada and Grenada.

Grenada also started the tournament well and currently sit in third place on the table.

They triumphed over St Vincent & Grenadines, Argentina and the US.

The top two teams at the end of competition will qualify for the 2019 Netball World Cup.

Barbados and Trinidad and Tobago competed at the 2015 Netball World Cup in Sydney in Australia, while this is the first qualifier event for St Vincent & Grenadines and St Maarten.

Australia, Northern Ireland, New Zealand, Malawi, Jamaica, South Africa, England and Uganda have already qualified for the 2019 Netball World Cup with places open for the top two teams from the global qualifiers.

Singapore will host the final qualifiers from September 1 to 9.

The Asian qualifying event will decide the final two places for the 2019 Netball World Cup.