| | Event type
Heavyweight (≤91 kilograms), Boys
| Date | 14 – 17 October 2018 | |
|---|---|---|
| Status | YOG | |
| Location | Oceania Pavilion, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | |
| Participants | 6 from 6 countries | |
| Format | Single elimination tournament. | |
| Pos | Competitor | NOC | |||
|---|---|---|---|---|---|
| 1 | Aibek Oralbay |  KAZ | Gold | ||
| 2 | Mohamed Amine Hacid |  ALG | Silver | ||
| 3 | Alvin Canales |  PUR | Bronze | ||
| 4 | Daniel Mikušťák |  CZE | |||
| =5 | Andrews Salgado |  CHI | |||
| =5 | Malcolm Matthes |  SAM |
Round One
| Date | 14 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 14 Oct | Alvin Canales | PUR | Decision | Andrews Salgado | CHI | |
| Match #2 | 14 Oct | Daniel Mikušťák | CZE | Decision | Malcolm Matthes | SAM |
Quarter-Finals
| Date | 15 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 15 Oct | Aibek Oralbay | KAZ | Decision | Andrews Salgado | CHI | |
| Match #2 | 15 Oct | Mohamed Amine Hacid | ALG | Decision | Malcolm Matthes | SAM |
Semi-Finals
| Date | 16 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 16 Oct | Aibek Oralbay | KAZ | Decision | Alvin Canales | PUR | |
| Match #2 | 16 Oct | Mohamed Amine Hacid | ALG | Decision | Daniel Mikušťák | CZE |
Final Round
| Date | 17 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match 1/2 | 17 Oct | Aibek Oralbay | KAZ | Decision | Mohamed Amine Hacid | ALG | |
| Match 3/4 | 17 Oct | Alvin Canales | PUR | Decision | Daniel Mikušťák | CZE | |
| Match 5/6 | 17 Oct | Andrews Salgado | CHI | Decision | Malcolm Matthes | SAM |