2018 5th-8th places
Semi-finals
| 1 | Ecuador U18 | Dominican Republic U18 | 70 : 102 |
| 2 | Chile U18 | Panama U18 | 67 : 61 |
5th place
| 1 | Dominican Republic U18 | Chile U18 | 63 : 69 |
7th place
| 2 | Ecuador U18 | Panama U18 | 51 : 66 |
2018 Main
Group A
| Pl | W | L | Pts | |||
| 1 | USA U18 | 3 | 3 | 0 | 338:170 | 6 |
| 2 | Puerto Rico U18 | 3 | 2 | 1 | 263:260 | 5 |
| 3 | Dominican Republic U18 | 3 | 1 | 2 | 257:267 | 4 |
| 4 | Panama U18 | 3 | 0 | 3 | 131:292 | 3 |
Group B
| Pl | W | L | Pts | |||
| 1 | Canada U18 | 3 | 3 | 0 | 304:210 | 6 |
| 2 | Argentina U18 | 3 | 2 | 1 | 233:219 | 5 |
| 3 | Chile U18 | 3 | 1 | 2 | 200:235 | 4 |
| 4 | Ecuador U18 | 3 | 0 | 3 | 198:271 | 3 |
Promotion ~ Americas Championship U18 (Play Offs)
2018 Play Offs
Quarter-finals
| 1 | USA U18 | Ecuador U18 | 132 : 55 |
| 2 | Dominican Republic U18 | Argentina U18 | 70 : 87 |
| 3 | Puerto Rico U18 | Chile U18 | 68 : 65 |
| 4 | Panama U18 | Canada U18 | 39 : 105 |
Semi-finals
| 1 | USA U18 | Argentina U18 | 104 : 92 |
| 2 | Puerto Rico U18 | Canada U18 | 89 : 95 |
Final
| 1 | USA U18 | Canada U18 | 113 : 74 |
3rd place
| 2 | Argentina U18 | Puerto Rico U18 | 87 : 79 |
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