Athletics at the 2018 Summer Youth Olympics – Boys' 100 metres
The boys' 100 metres competition at the 2018 Summer Youth Olympics was held on 12 and 15 October, at the Parque Polideportivo Roca.
Schedule
All times are in local time.Results
Stage 1
| Rank | Heat | Lane | Athlete | Nation | Result | Notes |
| 1 | 3 | 7 | Luke Davids | 10.56 | QH5 | |
| 2 | 3 | 2 | Alaba Olukunle Akintola | 10.76 | QH5 | |
| 3 | 2 | 6 | Seiryo Ikeda | 10.82 | QH5 | |
| 4 | 5 | 4 | Fabian Olbert | 10.93 | QH5 | |
| 5 | 3 | 8 | Ahmed Muhanna Al-Marwani | 10.94 | QH5 | |
| 5 | 4 | 5 | Michali Everett | 10.94 | QH5 | |
| 7 | 2 | 5 | Issa Sangare | 10.97 | QH5 | |
| 8 | 2 | 1 | Raphael Ngaguele Mberlina | 10.98 | QH5 | |
| 9 | 3 | 4 | Mahdi Rezaei | 10.99 | QH4 | |
| 10 | 5 | 2 | Shelton Keyrine St. Rose | 11.01 | QH4 | |
| 11 | 5 | 7 | Adrian Curry | 11.03 | QH4 | |
| 12 | 1 | 8 | Lucas Rodrigues da Silva | 11.04 | QH4 | |
| 13 | 2 | 2 | Mateo Vargas | 11.05 | QH4 | |
| 14 | 5 | 1 | Darian Clarke | 11.06 | QH4 | |
| 15 | 4 | 7 | Muhammad Fakhrul Abdul Aziz | 11.10 | QH4 | |
| 16 | 4 | 6 | He Yuhong | 11.15 | QH4 | |
| 17 | 1 | 6 | Romar Hariston Stapleton | 11.16 | QH3 | |
| 18 | 3 | 3 | Rafał Łupiński | 11.24 | QH3 | |
| 19 | 1 | 3 | Adi Ramli Sidiq | 11.26 | QH3 | |
| 20 | 1 | 1 | Tadeáš Formánek | 11.27 | QH3 | |
| 20 | 4 | 3 | Luis Rodríguez | 11.27 | QH3 | |
| 22 | 1 | 7 | Dominik Illovszky | 11.33 | QH3 | |
| 22 | 2 | 8 | Gary Rankin | 11.33 | QH3 | |
| 24 | 5 | 5 | Martin Alejandro Troera Trujillo | 11.39 | QH3 | |
| 25 | 2 | 3 | Noah Conteh | 11.45 | QH2 | |
| 26 | 4 | 4 | Dominic Cole | 11.52 | QH2 | |
| 27 | 1 | 5 | Timo Castrini | 11.58 | QH2 | |
| 28 | 5 | 8 | Bongumenzi Mbingo | 11.70 | QH2 | |
| 29 | 2 | 7 | Sunnyboy Barcon | 11.76 | QH2, | |
| 30 | 5 | 6 | Fabio Moniz | 11.82 | QH2 | |
| 31 | 3 | 5 | Ibadulla Adam | 11.88 | QH2, | |
| 32 | 3 | 6 | Ronward Hinarua | 11.89 | QH1 | |
| 33 | 4 | 8 | Kanaee Saloa Tauia | 11.95 | QH1 | |
| 34 | 4 | 2 | Vat Saisouly | 11.95 | QH1, | |
| 35 | 2 | 3 | Guy Robert Michel | 11.99 | QH1 | |
| 35 | 5 | 3 | Iosefa Mauga Jr. | 11.99 | QH1, | |
| 37 | 1 | 2 | Marcelo Gomes | 12.08 | QH1 | |
| 38 | 2 | 4 | Andrii Vasyliev | 12.21 | QH1 |
Stage 2
Final placing
| Rank | Athlete | Nation | Stage 1 | Stage 2 | Total |
| Luke Davids | 10.56 | 10.15 | 20.71 | ||
| Alaba Olukunle Akintola | 10.76 | 10.24 | 21.00 | ||
| Seiryo Ikeda | 10.82 | 10.30 | 21.12 | ||
| Michali Everett | 10.94 | 10.44 | 21.38 | ||
| Raphael Ngaguele Mberlina | 10.98 | 10.51 | 21.49 | ||
| Fabian Olbert | 10.93 | 10.59 | 21.52 | ||
| Mahdi Rezaei | 10.99 | 10.57 | 21.56 | ||
| Issa Sangare | 10.97 | 10.61 | 21.58 | ||
| Mateo Vargas | 11.05 | 10.61 | 21.66 | ||
| 10 | Lucas Rodrigues da Silva | 11.04 | 10.62 | 21.66 | |
| 11 | Adrian Curry | 11.03 | 10.64 | 21.67 | |
| 12 | Shelton Keyrine St. Rose | 11.01 | 10.70 | 21.71 | |
| 13 | Romar Hariston Stapleton | 11.16 | 10.67 | 21.83 | |
| 14 | Muhammad Fakhrul Abdul Aziz | 11.10 | 10.73 | 21.83 | |
| 15 | Darian Clarke | 11.06 | 10.78 | 21.84 | |
| 16 | Adi Ramli Sidiq | 11.26 | 10.59 | 21.85 | |
| 17 | Tadeáš Formánek | 11.27 | 10.59 | 21.86 | |
| 18 | He Yuhong | 11.15 | 10.75 | 21.90 | |
| 19 | Rafał Łupiński | 11.24 | 10.73 | 21.97 | |
| 20 | Luis Rodríguez | 11.27 | 10.77 | 22.04 | |
| 21 | Dominik Illovszky | 11.33 | 10.82 | 22.15 | |
| 22 | Gary Rankin | 11.33 | 10.83 | 22.16 | |
| 23 | Martin Alejandro Troera Trujillo | 11.39 | 10.88 | 22.27 | |
| 24 | Noah Conteh | 11.45 | 10.95 | 22.40 | |
| 25 | Dominic Cole | 11.52 | 11.01 | 22.53 | |
| 26 | Timo Castrini | 11.58 | 10.97 | 22.55 | |
| 27 | Bongumenzi Mbingo | 11.70 | 11.18 | 22.88 | |
| 28 | Sunnyboy Barcon | 11.76 | 11.33 | 23.09 | |
| 29 | Ibadulla Adam | 11.88 | 11.32 | 23.20 | |
| 30 | Fabio Moniz | 11.82 | 11.40 | 23.22 | |
| 31 | Kanaee Saloa Tauia | 11.95 | 11.45 | 23.40 | |
| 32 | Guy Robert Michel | 11.99 | 11.44 | 23.43 | |
| 33 | Vat Saisouly | 11.96 | 11.61 | 23.56 | |
| 34 | Iosefa Mauga Jr. | 11.99 | 11.61 | 23.60 | |
| 35 | Marcelo Gomes | 12.08 | 11.71 | 23.79 | |
| 36 | Andrii Vasyliev | 12.21 | 42.46 | 54.67 | |
| Ahmed Muhanna Al-Marwani | 10.94 | ||||
| Ronward Hinarua | 11.89 |