| | Event type
Featherweight (≤57 kilograms), Girls
| Date | 14 – 17 October 2018 | |
|---|---|---|
| Status | YOG | |
| Location | Oceania Pavilion, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | |
| Participants | 7 from 7 countries | |
| Format | Single elimination tournament. | |
| Pos | Competitor | NOC | |||
|---|---|---|---|---|---|
| 1 | Panpatchara Somnuek |  THA | Gold | ||
| 2 | Jennifer Carrillo |  MEX | Silver | ||
| 3 | Dearbhla Rooney |  IRL | Bronze | ||
| 4 | Te Mania Shelford-Edmonds |  NZL | |||
| =5 | Hind Moustakim |  MAR | |||
| =5 | Jessica Triebeľová |  SVK | |||
| =5 | Roma Martinez |  USA |
Round One
| Date | 14 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 14 Oct | Te Mania Shelford-Edmonds | NZL | ||||
| Match #2 | 14 Oct | Jennifer Carrillo | MEX | Decision | Hind Moustakim | MAR | |
| Match #3 | 14 Oct | Panpatchara Somnuek | THA | Referee stops contest | Jessica Triebeľová | SVK | |
| Match #4 | 14 Oct | Dearbhla Rooney | IRL | Decision | Roma Martinez | USA |
Semi-Finals
| Date | 16 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match #1 | 16 Oct | Jennifer Carrillo | MEX | Referee stops contest | Te Mania Shelford-Edmonds | NZL | |
| Match #2 | 16 Oct | Panpatchara Somnuek | THA | Decision | Dearbhla Rooney | IRL |
Final Round
| Date | 17 October 2018 |
|---|
| Match | Date/Time | Competitor | NOC | Result | Competitor | NOC | |
|---|---|---|---|---|---|---|---|
| Match 1/2 | 17 Oct | Panpatchara Somnuek | THA | Decision | Jennifer Carrillo | MEX | |
| Match 3/4 | 17 Oct | Dearbhla Rooney | IRL | Decision | Te Mania Shelford-Edmonds | NZL |