New Zealand golf croquet champion Duncan Dixon is one of two Kiwis assured of progressing to the knockout stage of the World Golf Croquet Championships in the Bay of Plenty.

After four days of competition, the 25-year-old from Mount Maunganui, who holds seven national titles, remains unbeaten along with Auckland's Phillip Drew and four other internationals.

Bay of Plenty's Duncan Dixon in action on day four of the World Golf Croquet Championships. Photo: Supplied.

The other four are Ahmed El Mahdi, Ahmed Nasr, Hamy Erian, all from Egypt, and England's Stephen Mulliner.

The faultless eight wins means the six players will make the knock-out stage of the tournament with one round of block play to go,.

World champion Reg Bamford of South Africa lost a match on Tuesday, giving him seven wins.

Another six players have also won seven of their best-of-three matches, including Chris and Jenny Clarke (Christchurch). The others are Shoukry Aziz, Mohamed Karem and Salah Hassan (Egypt) and Kevin Beard (Australia).

The final round of block play is being held today, with the knock-out phase of the competition due to start tomorrow at Mount Maunganui.

The top four in each of the eight blocks of ten players go through to the knock-out stage.

Four Bay of Plenty clubs - Mount Maunganui, Katikati, Rotorua and Whakatane - have been hosting the World Championships.

The finals are being held at Mount Maunganui on Sunday.