Matt Stanley (Matamata) finished second in the 400m freestyle behind Australia's Robert Hurley clocking a solid 3:42.17 while clubmate Mitchell Donaldson was third in the 400m individual medley in 4:15.98 won by South Africa's Darian Townsend.
Donaldson was also fifth in the final of the 200m breaststroke, West Auckland's Jessica Marston was eighth in the final of the 800m freestyle won by Hosszu and Taranaki's Dylan Dunlop-Barrett was seventh in the 400m individual medley.
The series concludes in Singapore tonight.
Results, day 1 finals:
800m freestyle: Katinka Hosszu (HUN) 8:21.94, 1; Alanna Bowles (AUS) 8:22.70, 2; Jessica Pengelly (RSA) 8:22.81, 3. Also: Jessica Marston (NZL) 9:07.68, 8.
50m breaststroke: Christian Sprenger (AUS) 26.69, 1; Glenn Snyders (NZL) 26.74, 2; Igor Golovin (RUS) 27.43, 3.
400m individual medley: Darian Townsend (RSA) 4:09.24, 1; Travis Mahoney (AUS) 4:09.75, 2; Mitchell Donaldson (NZL) 4:15.98, 3. Also: Dylan Dunlop-Barrett (NZL) 4:19.84, 7.
400m freestyle: Robert Hurley (AUS) 3:41.01, 1; Matt Stanley (NZL) 3:42.17, 2; Jarrod Killey (AUS) 3:43.92, 3.
200m backstroke: Melissa Ingram (NZL) 2:04.93, 1; Jenning Mensing (GER) 2:05.74, 2; Hosszu 2:07.80, 3.
200m breaststroke: Sean Mahoney (USA) 2:06.17, 1; Sprenger (AUS) 2:06.98, 2; Jeremy Meyer (AUS) 2:08.72, 3. Also: Donaldson 2:14.69, 5.
200m freestyle: Hosszu 1:53.57, 1; Angie Bainbridge (AUS) 1:54.28, 2; Zsuzsanna Jakabos (HUN) 1:54.34, 3. Also: Ingram 1:57.81, 5.