| | Event type
Flyweight (≤52 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 | Ivan Price |  GBR | Gold | ||
| 2 | Sarawut Sukthet |  THA | Silver | ||
| 3 | Luiz Oliveira |  BRA | Bronze | ||
| 4 | Dean Clancy |  IRL | |||
| =5 | Hichem Maouche |  ALG | |||
| =5 | Sultan Mohammad Naeemi |  AFG |
Round One
| Date | 14 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 14 Oct | Dean Clancy | IRL | Decision | Hichem Maouche | ALG | |
| Match #2 | 14 Oct | Sarawut Sukthet | THA | Decision | Sultan Mohammad Naeemi | AFG |
Quarter-Finals
| Date | 15 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 15 Oct | Ivan Price | GBR | Decision | Hichem Maouche | ALG | |
| Match #2 | 15 Oct | Luiz Oliveira | BRA | Walkover | Sultan Mohammad Naeemi | AFG |
Semi-Finals
| Date | 16 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 16 Oct | Ivan Price | GBR | Decision | Dean Clancy | IRL | |
| Match #2 | 16 Oct | Sarawut Sukthet | THA | Decision | Luiz Oliveira | BRA |
Final Round
| Date | 17 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match 1/2 | 17 Oct | Ivan Price | GBR | Referee stops contest | Sarawut Sukthet | THA | |
| Match 3/4 | 17 Oct | Luiz Oliveira | BRA | Decision | Dean Clancy | IRL | |
| Match 5/6 | 17 Oct | Hichem Maouche | ALG | Walkover | Sultan Mohammad Naeemi | AFG |