Final | time | gap | L | React. | pts | 1. Caeleb Dressel | United States | 21.04s CR | | 4 | 0.62 | 981 | 2. Bruno Fratus | Brazil | 21.45s | +0.41s | 5 | 0.66 | 926 | 2. Kristian Gkolomeev | Greece | 21.45s | +0.41s | 6 | 0.67 | 926 | 4. Vladimir Morozov | Russia | 21.53s | +0.49s | 2 | 0.61 | 916 | 5. Benjamin Proud | Great Britain | 21.55s | +0.51s | 3 | 0.61 | 913 | 6. Michael Andrew | United States | 21.62s | +0.58s | 8 | 0.68 | 904 | 7. Paweł Juraszek | Poland | 21.67s | +0.63s | 7 | 0.61 | 898 | 8. Shinri Shioura | Japan | 21.81s | +0.77s | 1 | 0.68 | 881 |
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| First 8 advanced to Final. |
Ranking | time | gap | L | React. | SR | pts | 1. Caeleb Dressel | United States | 21.18s | - | 0.61 | 1. | 962 | 1. Bruno Fratus | Brazil | 21.53s | +0.35s | - | 0.70 | 2. | 916 | 2. Benjamin Proud | Great Britain | 21.56s | +0.38s | - | 0.63 | 3. | 912 | 3. Kristian Gkolomeev | Greece | 21.80s | +0.42s | - | 0.69 | 4. | 907 | 2. Vladimir Morozov | Russia | 21.65s | +0.47s | - | 0.63 | 5. | 900 | 3. Paweł Juraszek | Poland | 21.69s | +0.51s | - | 0.62 | 6. | 895 | 4. Shinri Shioura | Japan | 21.74s | +0.56s | - | 0.67 | 7. | 889 | 5. Michael Andrew | United States | 21.77s | +0.59s | - | 0.66 | 8. | 886 | 4. Maxime Grousset | France | 21.86s | +0.68s | - | 0.61 | 9. | 875 | 5. Cameron McEvoy | Australia | 21.88s | +0.70s | - | 0.60 | 10. | 872 | 6. Maxim Lobanovskij | Hungary | 21.89s | +0.71s | - | 0.66 | 11. | 871 | 7. Jesse Puts | Netherlands | 21.91s | +0.73s | - | 0.59 | 12. | 869 | 8. Ali Khalafalla | Egypt | 21.98s | +0.80s | - | 0.60 | 13. | 860 | 6. Meiron Cheruti | Israel | 22.01s | +0.83s | - | 0.59 | 14. | 857 | 7. Yu Hexin | China | 22.11s | +0.93s | - | 0.62 | 15. | 845 | 8. Marcelo Chierighini | Brazil | 22.19s | +1.01s | - | 0.63 | 16. | 836 |
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