| | Event type
800 metres, Boys
| Date | 13 – 15 October 2018 | |
|---|---|---|
| Status | YOG | |
| Location | Athletics Field, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | |
| Participants | 25 from 25 countries | |
| Format | Two stages with final results determined by cumulative time. | |
| Pos | Competitor | NOC | Time | |||
|---|---|---|---|---|---|---|
| 1 | Tasew Yada |  ETH | 3:39.76 | Gold | ||
| 2 | Mohamed Ali Gouaned |  ALG | 3:41.74 | Silver | ||
| 3 | Mehmet Çelik |  TUR | 3:41.79 | Bronze | ||
| 4 | Francis Pesi |  KEN | 3:41.87 | |||
| 5 | Mohamed Abouettahery |  MAR | 3:42.20 | |||
| 6 | Hamze Ali Hassan |  DJI | 3:42.67 | |||
| 7 | Athanase Vyizigiro |  BDI | 3:45.05 | |||
| 8 | Anthony Vlatko |  AUS | 3:45.68 | |||
| 9 | Axel Vázquez |  MEX | 3:46.28 | |||
| 10 | Eric Guzmán |  ESP | 3:46.28 | |||
| 11 | Cristian Voicu |  ROU | 3:47.23 | |||
| 12 | Jenito Guezane |  MOZ | 3:47.94 | |||
| 13 | Adam Masaczyński |  POL | 3:47.99 | |||
| 14 | Jakub Davidík |  CZE | 3:48.50 | |||
| 15 | Elvin Canales |  HON | 3:48.76 | |||
| 16 | Kimar Farquharson |  JAM | 3:49.60 | |||
| 17 | Pedro de Souza |  BRA | 3:49.63 | |||
| 18 | João Peixoto |  POR | 3:55.39 | |||
| 19 | Paul Seyringer |  AUT | 3:56.21 | |||
| 20 | Manuel Chivela |  ANG | 3:56.28 | |||
| 21 | Jovan Rosić |  BIH | 3:56.90 | |||
| 22 | Sreekiran Nandakumar |  IND | 3:58.93 | |||
| 23 | Chester Durand |  DMA | 4:09.87 | |||
| Samer Ali Saleh Al-Johar |  JOR | – | ||||
| Akoon Akoon |  SSD | – |