Hungary's Hosszu, who won four golds at the recent World Cup event in Dubai, won the 800m freestyle, 200m freestyle and 200m individual medley and came third in the 200m backstroke.
Daiya Seto of Japan also collected three gold medals, winning the men's 400m individual medley, 200m butterfly and 200m breaststroke.
Australia's Tommaso D'Orsogna and compatriot Kenneth To shared the spoils in the men's 100m freestyle, sharing a dead heat in 47.10 seconds.
And Germany's quartet of Jenny Mensing, Marco Koch, Helge Meeuw and Britta Steffen took victory in the World Cup's unique mixed 4x50m medley, which features both men and women in the same race.
RESULTS
MEN
100m Freestyle
D'ORSOGNA Tommaso (AUS) 47.10
TO Kenneth (AUS) 47.10
ERVIN Anthony (USA) 47.17
50m Breaststroke
VAN DER BURGH Cameron (RSA) 25.95
SCHOEMAN Roland (RSA) 26.38
SNYDERS Glenn (NZL) 26.68
400m Medley
SETO Daiya (JPN) 4:02.51
CSEH Laszlo (HUN) 4:03.71
HUANG Chaosheng (CHN) 4:07.58
100m Backstroke
HURLEY Robert (AUS) 50.18
DONETS Stanislav (RUS) 50.47
HAGINO Kosuke (JPN) 50.92
200m Butterfly
SETO Daiya (JPN) 1:51.30
LE CLOS Chad (RSA) 1:51.31
SHIELDS Thomas (USA) 1:52.72
400m Freestyle
HURLEY Robert (AUS) 3:42.89
WANG Kecheng (CHN) 3:44.15
KIS Gergo (HUN) 3:44.87
200m Breaststroke
SETO Daiya (JPN) 2:04.87
KOCH Marco (GER) 2:05.72
MAHONEY Sean (USA) 2:06.23
100m Medley
TO Kenneth (AUS) 51.58
BOVELL George (TRI) 51.87
TOWNSEND Darian (RSA) 52.76
50m Butterfly
SCHOEMAN Roland (RSA) 22.34
DUNFORD Jason Edward (KEN) 22.87
LE CLOS Chad (RSA) 22.90
WOMEN
800m Freestyle
HOSSZU Katinka (HUN) 8:29.31
SMID Tanja (SLO) 8:30.60
JAKABOS Zsuzsanna (HUN) 8:35.48
200m Freestyle
HOSSZU Katinka (HUN) 1:54.79
COLEMAN Michelle (SWE) 1:56.25
ZEVNINA Daryna (UKR) 1:56.31
100m Breaststroke
JOHANSSON Jennie (SWE) 1:06.11
KAWANABE Fumiko (JPN) 1:06.96
HOESTMAN Joline (SWE) 1:07.25
100m Butterfly
ALSHAMMAR Therese (SWE) 57.22
DEKKER Inge (NED) 58.04
SZE Hang Yu (HKG) 59.23
50m Backstroke
INADA Noriko (JPN) 27.29
GOH Rachel (AUS) 27.67
COLEMAN Michelle (SWE) 28.05
200m Medley
HOSSZU Katinka (HUN) 2:09.86
JAKABOS Zsuzsanna (HUN) 2:10.58
MEAKLIM Katheryn (RSA) 2:12.73
50m Freestyle
ALSHAMMAR Therese (SWE) 26.44
STEFFEN Britta (GER) 24.46
DEKKER Inge (NED) 24.78
200m Backstroke
ZEVINA Daryna (UKR) 2:02.99
INGRAM Melissa (NZL) 2:04.95
HOSSZU Katinka (HUN) 2:07.54
