# 2017 IAAF World U18 Championships – Boys' 100 metres

The boys' 100 metres at the 2017 IAAF World U18 Championships was held on 12 July.

## Records

Prior to the competition, the following records were as follows.
| World Youth Best | Anthony Schwartz (USA) | 10.15 | Gainesville, Florida, United States | 31 March 2017 |
| Championship Record | Abdul Hakim Sani Brown (JPN) | 10.28 | Cali, Colombia | 15 July 2015 |
| World Youth Leading | Anthony Schwartz (USA) | 10.15 | Gainesville, Florida, United States | 31 March 2017 |

## Heats

Qualification rule: first 4 of each heat (Q) and the next 4 fastest qualified.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 5 | Retshidisitswe Mlenga | South Africa | 10.48 | Q |
| 2 | 3 | 5 | Tshenolo Lemao | South Africa | 10.54 | Q |
| 3 | 2 | 2 | Luis Brandner | Germany | 10.54 | Q, PB |
| 4 | 2 | 7 | Vasyl Makukh | Ukraine | 10.59 | Q, PB |
| 5 | 4 | 5 | Mohamed Zekraoui | Algeria | 10.59 | Q, PB |
| 6 | 5 | 7 | Tyreke Wilson | Jamaica | 10.60 | Q |
| 7 | 4 | 8 | Adrian Curry | Bahamas | 10.61 | Q |
| 8 | 4 | 3 | Abdu Marzouq | Saudi Arabia | 10.68 | Q, PB |
| 9 | 3 | 6 | Nick Kocevar | Germany | 10.68 | Q, PB |
| 10 | 1 | 3 | Arielton dos Santos | Brazil | 10.73 | Q |
| 11 | 4 | 6 | Tobias Larsen | Denmark | 10.73 | Q, PB |
| 12 | 5 | 2 | Danelson Mahautiere | Dominica | 10.74 | Q, PB |
| 13 | 1 | 7 | Joel Johnson | Bahamas | 10.77 | Q |
| 14 | 5 | 3 | Elijah Matayo | Kenya | 10.78 | Q, PB |
| 15 | 3 | 4 | Oleksandr Savenko | Ukraine | 10.79 | Q |
| 16 | 3 | 7 | Huang Yonglian | China | 10.79 | Q |
| 17 | 2 | 3 | Mojela Koneshe | Lesotho | 10.80 | Q, PB |
| 18 | 1 | 4 | Suo Hanbo | China | 10.85 | Q |
| 19 | 2 | 1 | Muhammad Sa'adon | Malaysia | 10.89 | Q |
| 20 | 4 | 7 | Rodrigo Guzmán | Mexico | 10.89 | q |
| 21 | 4 | 4 | Tse Yee Hin Rico | Hong Kong | 10.89 | q |
| 22 | 2 | 4 | Mehdi Nait Abdelaziz | Algeria | 10.92 | q |
| 23 | 5 | 6 | Joshua Han Wei Chua | Singapore | 10.94 | Q |
| 24 | 1 | 8 | Theron Human | Namibia | 11.03 | q |
| 25 | 5 | 8 | Gurindervir Singh | India | 11.07 | |
| 26 | 2 | 5 | Fabrizio Aquino | Paraguay | 11.09 | |
| 27 | 3 | 2 | Ch. Palendra Kumar | India | 11.10 | |
| 28 | 1 | 2 | Tajarie Arthurton | Saint Kitts and Nevis | 11.12 | |
| 29 | 5 | 5 | Erik Cardoso | Brazil | 11.20 | |
| 30 | 2 | 6 | Jean Ngoma Toko Wasala | Republic of the Congo | 11.27 | PB |
| 31 | 5 | 4 | Francesco Sansovini | San Marino | 11.38 | |
| 32 | 4 | 2 | Issiaka Djire | Mali | 11.41 | PB |
| 33 | 3 | 8 | Mohamed Dahalane | Comoros | 11.49 | PB |
| 34 | 3 | 3 | Yusufjon Bekmurodov | Tajikistan | 11.61 | PB |
| 35 | 1 | 6 | Daniel Tajar | South Sudan | 11.82 | PB |
| | 2 | 8 | Enoch Adegoke | Nigeria | DNS | |
| | 3 | 1 | Gershon Omubo | Nigeria | DNS | |

## Semifinals

Qualification rule: first 2 of each heat (Q) and the next 2 fastest qualified.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 2 | Retshidisitswe Mlenga | South Africa | 10.37 | Q, PB |
| 2 | 3 | Tyreke Wilson | Jamaica | 10.47 | Q |
| 3 | 3 | Tshenolo Lemao | South Africa | 10.50 | Q |
| 4 | 1 | Arielton dos Santos | Brazil | 10.56 | Q, PB |
| 5 | 3 | Nick Kocevar | Germany | 10.57 | Q, PB |
| 6 | 2 | Adrian Curry | Bahamas | 10.59 | Q |
| 7 | 3 | Abdu Marzouq | Saudi Arabia | 10.61 | q, PB |
| 8 | 3 | Huang Yonglian | China | 10.62 | PB |
| 9 | 1 | Luis Brandner | Germany | 10.62 | Q |
| 10 | 2 | Suo Hanbo | China | 10.65 | PB |
| 11 | 1 | Mohamed Zekraoui | Algeria | 10.67 | |
| 12 | 2 | Danelson Mahautiere | Dominica | 10.67 | PB |
| 13 | 1 | Joel Johnson | Bahamas | 10.68 | PB |
| 14 | 1 | Tobias Larsen | Denmark | 10.74 | |
| 15 | 3 | Elijah Matayo | Kenya | 10.74 | PB |
| 16 | 1 | Tse Yee Hin Rico | Hong Kong | 10.77 | |
| 17 | 2 | Muhammad Sa'adon | Malaysia | 10.80 | PB |
| 18 | 1 | Oleksandr Savenko | Ukraine | 10.82 | |
| 19 | 2 | Theron Human | Namibia | 10.84 | |
| 20 | 1 | Rodrigo Guzmán | Mexico | 10.86 | |
| 21 | 3 | Mehdi Nait Abdelaziz | Algeria | 10.97 | |
| 22 | 3 | Joshua Han Wei Chua | Singapore | 11.05 | |
| 23 | 2 | Vasyl Makukh | Ukraine | 11.41 | |
| | 2 | Mojela Koneshe | Lesotho | DQ | |

## Final

| Rank | Name | Nationality | Reaction | Time |
| | Tshenolo Lemao | South Africa | 0.186 | 10.57 |
| | Retshidisitswe Mlenga | South Africa | 0.195 | 10.61 |
| | Tyreke Wilson | Jamaica | 0.213 | 10.65 |
| 4 | Arielton dos Santos | Brazil | 0.205 | 10.73 |
| 5 | Nick Kocevar | Germany | 0.233 | 10.83 |
| 6 | Adrian Curry | Bahamas | 0.288 | 10.86 |
| 7 | Abdu Marzouq | Saudi Arabia | 0.211 | 11.01 |
| 8 | Luis Brandner | Germany | 0.244 | 11.13 |