Heat 5 | | time | | React | L | 1. Aaron Brown | Canada | 20.38s | Q | 0.157 | 4 | 2. Joseph Fahnbulleh | Liberia | 20.46s | Q | 0.147 | 2 | 3. William Reais | Switzerland | 20.51s | Q | 0.147 | 6 | 4. Serhiy Smelyk | Ukraine | 20.53s | SB | 0.144 | 7 | 5. Antonio Infantino | Italy | 20.90s | | 0.132 | 5 | 6. Lucas Vilar | Brazil | 21.31s | | 0.171 | 3 | 7. Muhd Noor Firdaus Ar-Rasyid | Brunei | 21.83s | SB | 0.174 | 8 |
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Heat 6 | | time | | React | L | 1. Kenneth Bednarek | United States | 20.01s | Q | 0.184 | 5 | 2. Yancarlos Martínez | Dominicana | 20.17s | Q, NR | 0.164 | 8 | 3. Fausto Desalu | Italy | 20.29s | Q, SB | 0.131 | 4 | 4. Xie Zhenye | China | 20.34s | q, SB | 0.159 | 2 | 5. Nethaneel Mitchell-Blake | Great Britain | 20.56s | SB | 0.163 | 3 | 6. Marcus Lawler | Ireland | 20.73s | SB | 0.145 | 7 | -. Emmanuel Matadi | Liberia | DNS | | | 6 |
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