| Date | 12 – 15 October 2018 | |
|---|---|---|
| Status | YOG | |
| Location | Athletics Field, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires | |
| Participants | 38 from 38 countries | |
| Format | Two stages with final results determined by cumulative time. | |
| Pos | Competitor | NOC | Time | |||
|---|---|---|---|---|---|---|
| 1 | Luke Davids | RSA | 20.71 | Gold | ||
| 2 | Alaba Akintola | NGR | 21.00 | Silver | ||
| 3 | Seiryo Ikeda | JPN | 21.12 | Bronze | ||
| 4 | Michali Everett | JAM | 21.38 | |||
| 5 | Raphael Ngaguele Mberlina | CMR | 21.49 | |||
| 6 | Fabian Olbert | GER | 21.52 | |||
| 7 | Mahdi Rezaei | IRI | 21.56 | |||
| 8 | Issa Sangare | MLI | 21.58 | |||
| 9 | Mateo Vargas | PAR | 21.66 | |||
| 10 | Lucas da Silva | BRA | 21.66 | |||
| 11 | Adrian Curry | BAH | 21.67 | |||
| 12 | Shelton St. Rose | LCA | 21.71 | |||
| 13 | Romar Stapleton | VIN | 21.83 | |||
| 14 | Muhammad Fakhrul Abdul Aziz | MAS | 21.83 | |||
| 15 | Darian Clarke | BAR | 21.84 | |||
| 16 | Adi Sidiq | INA | 21.85 | |||
| 17 | Tadeáš Formánek | CZE | 21.86 | |||
| 18 | He Yuhong | CHN | 21.90 | |||
| 19 | Rafał Łupiński | POL | 21.97 | |||
| 20 | Luis Rodríguez | PUR | 22.04 | |||
| 21 | Dominik Illovszky | HUN | 22.15 | |||
| 22 | Gary Rankin | CAY | 22.16 | |||
| 23 | Martín Loera | MEX | 22.27 | |||
| 24 | Noah Conteh | SLE | 22.40 | |||
| 25 | Dominic Cole | TTO | 22.53 | |||
| 26 | Timo Castrini | SUI | 22.55 | |||
| 27 | Bongumenzi Mbingo | SWZ | 22.88 | |||
| 28 | Sunnyboy Barcon | LBR | 23.09 | |||
| 29 | Ibadulla Adam | MDV | 23.20 | |||
| 30 | Fabio Moniz | STP | 23.22 | |||
| 31 | Kanaee Tauia | TUV | 23.40 | |||
| 32 | Guy Michel | HAI | 23.43 | |||
| 33 | Vat Saisouly | LAO | 23.56 | |||
| 34 | Iosefa Mauga, Jr. | ASA | 23.60 | |||
| 35 | Marcelo Gomes | CPV | 23.79 | |||
| 36 | Andriy Vasyliev | UKR | 54.67 | |||
| Ahmed Muhanna Almarwani | KSA | – | ||||
| Ronward Hinarua | SOL | – |