2018 IAAF World U20 Championships – Men's 100 metres
The men's 100 metres at the 2018 IAAF World U20 Championships was held at Ratina Stadium on 10 and 11 July.
Results
Heats
Qualification: First 3 of each heat and the 6 fastest times qualified for the semifinals.Wind:
Heat 1: +1.1 m/s, Heat 2: +0.6 m/s, Heat 3: +0.5 m/s, Heat 4: -0.3 m/s, Heat 5: -1.0 m/s, Heat 6: +0.2 m/s
| Rank | Heat | Name | Nationality | Time | Note | ||||||||||||||||||
| 1 | 1 | Lalu Muhammad Zohri |  IndonesiaSemifinalsQualification: First 2 of each semifinal and the 2 fastest times qualified for the final.Wind: Semifinal 1: +1.0 m/s, Semifinal 2: +1.4 m/s, Semifinal 3: +0.1 m/s
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