Semifinals
- Saturday 2 October 1999
| Yugoslavia | 7 – 5 | Australia |
| United States | 10 – 4 | Greece |
| Hungary | 8 – 4 | Spain |
| Italy | 7 – 5 | Russia |
Read more about this topic: 1999 FINA Men's Water Polo World Cup
Semifinals
| Yugoslavia | 7 – 5 | Australia |
| United States | 10 – 4 | Greece |
| Hungary | 8 – 4 | Spain |
| Italy | 7 – 5 | Russia |
Read more about this topic: 1999 FINA Men's Water Polo World Cup