| Final | time | gap | L | React. |  | 1. Anthony Ervin |  USA | 21.40s |   | 5 | 0.69 |  | 2. Florent Manaudou |  FRA | 21.41s | 0.01 | 4 | 0.63 |  | 3. Nathan Adrian |  USA | 21.49s | 0.09 | 6 | 0.69 |  | 4. Benjamin Proud |  GBR | 21.68s | 0.28 | 2 | 0.62 |  | 5. Andrii Govorov |  UKR | 21.74s | 0.34 | 3 | 0.61 |  | 6. Bruno Fratus |  BRA | 21.79s | 0.39 | 1 | 0.71 |  | 6. Bradley Edward Tandy |  RSA | 21.79s | 0.39 | 8 | 0.60 |  | 8. Simonas Bilis |  LTU | 22.08s | 0.68 | 7 | 0.70 |   
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| Ranking | time | gap | React | HR | Semi |  | 1. Florent Manaudou |  FRA | 21.32s |   | 0.65 | 1. | 1 |  | 2. Anthony Ervin |  USA | 21.46s | 0.14 | 0.72 | 1. | 2 |  | 2. Andrii Govorov |  UKR | 21.46s | 0.14 | 0.63 | 1. | 2 |  | 4. Nathan Adrian |  USA | 21.47s | 0.15 | 0.64 | 2. | 1 |  | 5. Benjamin Proud |  GBR | 21.54s | 0.22 | 0.61 | 3. | 2 |  | 6. Simonas Bilis |  LTU | 21.71s | 0.39 | 0.69 | 4. | 2 |  | 6. Bruno Fratus |  BRA | 21.71s | 0.39 | 0.67 | 4. | 2 |  | 8. Bradley Edward Tandy |  RSA | 21.80s | 0.48 | 0.59 | 3. | 1 |  |  eliminated |  | 9. Luca Dotto |  ITA | 21.84s | 0.52 | 0.66 | 6. | 2 |  | 10.Vladimir Morozov |  RUS | 21.88s | 0.56 | 0.62 | 4. | 1 |  | 11.Cameron McEvoy |  AUS | 21.89s | 0.57 | 0.61 | 7. | 2 |  | 12.Santo Condorelli |  CAN | 21.97s | 0.65 | 0.63 | 5. | 1 |  | 13.Kristian Gkolomeev |  GRE | 21.98s | 0.66 | 0.69 | 6. | 1 |  | 14.Norbert Trandafir |  ROU | 21.99s | 0.67 | 0.65 | 7. | 1 |  | 15.Italo Duarte |  BRA | 22.05s | 0.73 | 0.64 | 8. | 2 |  |  bellow standard A 22.07s |  | 16.Shinri Shioura |  JPN | 22.18s | 0.86 | 0.66 | 8. | 1 |   
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| Ranking | time | gap | React | HR |  | 1. Andrii Govorov |  UKR | 21.49s |   | 0.60 | 1. |  | 2. Nathan Adrian |  USA | 21.61s | 0.12 | 0.67 | 1. |  | 3. Anthony Ervin |  USA | 21.63s | 0.14 | 0.72 | 2. |  | 4. Florent Manaudou |  FRA | 21.72s | 0.23 | 0.65 | 2. |  | 5. Cameron McEvoy |  AUS | 21.80s | 0.31 | 0.62 | 1. |  | 6. Vladimir Morozov |  RUS | 21.81s | 0.32 | 0.64 | 2. |  | 7. Santo Condorelli |  CAN | 21.83s | 0.34 | 0.66 | 3. |  | 7. Benjamin Proud |  GBR | 21.83s | 0.34 | 0.61 | 3. |  | 9. Luca Dotto |  ITA | 21.87s | 0.38 | 0.64 | 3. |  | 10.Bruno Fratus |  BRA | 21.93s | 0.44 | 0.73 | 3. |  | 10.Kristian Gkolomeev |  GRE | 21.93s | 0.44 | 0.72 | 5. |  | 12.Bradley Edward Tandy |  RSA | 21.94s | 0.45 | 0.61 | 4. |  | 13.Italo Duarte |  BRA | 21.96s | 0.47 | 0.66 | 4. |  | 14.Simonas Bilis |  LTU | 22.01s | 0.52 | 0.70 | 5. |  | 14.Shinri Shioura |  JPN | 22.01s | 0.52 | 0.67 | 5. |  |  bellow standard A 22.07s |  | 16.Norbert Trandafir |  ROU | 22.10s | 0.61 | 0.65 | 6. |  |  eliminated |  | 17.Krisztian Takacs |  HUN | 22.12s | 0.63 | 0.70 | 6. |  | 18.Katsumi Nakamura |  JPN | 22.13s | 0.64 | 0.68 | 7. |  | 19.Damian Wierling |  GER | 22.18s | 0.69 | 0.67 | 6. |  | 20.Hexin Yu |  CHN | 22.20s | 0.71 | 0.63 | 1. |  | 21.Renzo Tjon-A-Joe |  SUR | 22.23s | 0.74 | 0.64 | 1. |  | 21.Filip Wypych |  POL | 22.23s | 0.74 | 0.66 | 2. |  | 23.Ali Ahmed Mahmoud Ali Khalafalla |  EGY | 22.25s | 0.76 | 0.62 | 2. |  | 23.Ari-Pekka Liukkonen |  FIN | 22.25s | 0.76 | 0.67 | 7. |  | 25.Frederick Bousquet |  FRA | 22.27s | 0.78 | 0.71 | 7. |  | 25.Oussama Sahnoune |  ALG | 22.27s | 0.78 | 0.71 | 3. |  | 27.George Bovell |  TTO | 22.30s | 0.81 | 0.70 | 3. |  | 28.Aleksei Brianskii |  RUS | 22.33s | 0.84 | 0.70 | 4. |  | 29.Douglas Erasmus |  RSA | 22.37s | 0.88 | 0.64 | 4. |  | 30.Zetao Ning |  CHN | 22.38s | 0.89 | 0.71 | 5. |  | 31.Federico Grabich |  ARG | 22.44s | 0.95 | 0.64 | 5. |  | 32.Geoffrey Cheah |  HKG | 22.46s | 0.97 | 0.63 | 1. |  | 33.Matthew Abood |  AUS | 22.47s | 0.98 | 0.71 | 8. |  | 33.Odyssefs Meladinis |  GRE | 22.47s | 0.98 | 0.64 | 6. |  | 35.Pawel Juraszek |  POL | 22.50s | 1.01 | 0.61 | 8. |  | 35.Yuri Kisil |  CAN | 22.50s | 1.01 | 0.70 | 6. |  | 37.Federico Bocchia |  ITA | 22.54s | 1.05 | 0.80 | 8. |  | 38.Francois Heersbrandt |  BEL | 22.58s | 1.09 | 0.68 | 7. |  | 39.Jasper Aerents |  BEL | 22.61s | 1.12 | 0.65 | 7. |  | 40.Mario Todorovic |  CRO | 22.65s | 1.16 | 0.67 | 2. |  | 41.Sidni Hoxha |  ALB | 22.80s | 1.31 | 0.72 | 1. |  | 41.Ziv Kalontarov |  ISR | 22.80s | 1.31 | 0.66 | 8. |  | 43.Shane Ryan |  IRL | 22.88s | 1.39 | 0.67 | 3. |  | 44.Cristian Quintero |  VEN | 22.92s | 1.43 | 0.66 | 4. |  |  bellow standard B 23.05s |  | 45.Jordan Augier |  LCA | 23.28s | 1.79 | 0.66 | 5. |  | 46.Jose Quintanilla |  BOL | 23.35s | 1.86 | 0.67 | 6. |  | 47.Vahan Mkhitaryan |  ARM | 23.50s | 2.01 | 0.69 | 7. |  | 48.Abdoul K M Niane |  SEN | 23.66s | 2.17 | 0.74 | 1. |  | 49.Hilal Hemed Hilal |  TAN | 23.70s | 2.21 | 0.65 | 1. |  | 50.Anthony Barbar |  LIB | 23.77s | 2.28 | 0.70 | 8. |  | 51.Maksim Inic |  MNE | 23.88s | 2.39 | 0.74 | 2. |  | 51.Meli Malani |  FIJ | 23.88s | 2.39 | 0.67 | 2. |  | 53.Ahmad Mohamed Attellesey |  LBA | 23.89s | 2.40 | 0.71 | 4. |  | 54.Mohammad Mahfizur Rahman |  BAN | 23.92s | 2.43 | 0.68 | 5. |  | 55.Abeku Jackson |  GHA | 24.30s | 2.81 | 0.65 | 6. |  | 56.Adam Viktora |  SEY | 24.32s | 2.83 | 0.70 | 2. |  | 57.Lum Zhaveli |  KOS | 24.53s | 3.04 | 0.70 | 7. |  | 58.Farhan Saleh Faraj Sultan Farhan |  BRN | 24.61s | 3.12 | 0.69 | 2. |  | 59.Samson Samuel Opuakpo Forcados |  NGR | 24.85s | 3.36 | 0.78 | 3. |  | 60.Batsaikhan Dulguun |  MGL | 24.90s | 3.41 | 0.72 | 8. |  | 61.Nikolas Sylvester |  VIN | 25.64s | 4.15 | 0.61 | 1. |  | 62.Olim Kurbanov |  TJK | 25.77s | 4.28 | 0.71 | 4. |  | 63.Giordan Harris |  MHL | 25.81s | 4.32 | 0.68 | 5. |  | 64.Ekirikubinza Joshua Tibatemwa |  UGA | 25.98s | 4.49 | 0.73 | 6. |  | 65.Dionisio Augustine |  FSM | 26.17s | 4.68 | 0.65 | 1. |  | 66.Billy-Scott Irakoze |  BDI | 26.36s | 4.87 | 0.78 | 7. |  | 67.Tindwende Thierry Sawadogo |  BUR | 26.38s | 4.89 | 0.73 | 2. |  | 68.Eloi Imaniraguha |  RWA | 26.43s | 4.94 | 0.68 | 8. |  | 69.Santisouk Inthavong |  LAO | 26.54s | 5.05 | 0.69 | 2. |  | 70.Albarchir Mouctar |  NIG | 26.56s | 5.07 | 0.77 | 3. |  | 71.Ibrahim Nishwan |  MDV | 26.72s | 5.23 | 0.71 | 3. |  | 72.Shawn Erbelau Dingilius Wallace |  PLW | 26.78s | 5.29 | 0.78 | 4. |  | 73.Osman Kamara |  SLE | 26.90s | 5.41 | 0.69 | 4. |  | 74.Abro Ahmed Mohamed Abro |  DJI | 27.13s | 5.64 | 0.77 | 5. |  | 75.Mael Ambonguilat |  GAB | 27.21s | 5.72 | 0.70 | 3. |  | 76.Athoumane Athoumane |  COM | 27.31s | 5.82 | 0.77 | 5. |  | 77.Jules Yao Bessan |  BEN | 27.32s | 5.83 | 0.79 | 6. |  | 78.Amadou Camara |  GUI | 27.35s | 5.86 | 0.74 | 7. |  | 79.Pap D Jonga |  GAM | 27.48s | 5.99 | 0.85 | 8. |  | 80.Emeric Kpegba |  TOG | 27.67s | 6.18 | 0.72 | 6. |  | 81.Abdelaziz M Ahmed |  SUD | 27.71s | 6.22 | 0.69 | 7. |  | 82.Dienov Koka |  CGO | 28.00s | 6.51 | 0.74 | 8. |  | 83.Brave Lifa |  MAW | 28.54s | 7.05 | 0.64 | 4. |  | 84.Christian Djidagui Nassif |  CAF | 30.00s | 8.51 | 0.74 | 5. |  | 85.Frantz Dorsainvil |  HAI | 30.86s | 9.37 | 0.75 | 6. |   
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| Olympic Qualifyng Time (OQT) 22.27s - NOC can enter up to 2 swimmers with OQT. |  | Olympic Selection Time (OST) 23.05s, invitational - A swwimer meeting the "invitation" standard was eligible for entry. But this entry was allotted/filled by ranking.  |   
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|  Olympic Qualifyng Time by NOC - 32 Swimmers |  |  Olympic Qualifyng Time by NOC - 39 Swimmers - addtional 48 Swimmers. |  |  Olympic Qualifying Time - 22.27s |  |  2 Quotas - 13 NOC |  | 2 |  Australia | Matthew Abood | Cameron McEvoy |  | 2 |  Belgium | François Heersbrandt | Jasper Aerents |  | 2 |  Brazil | Bruno Fratus | Duarte ítalo |  | 2 |  Canada | Santo Condorelli | Yuri Kisil |  | 2 |  China | Ning Zetao | Yu Hexin |  | 2 |  France | Frédérick Bousquet | Florent Manaudou |  | 2 |  Greece | Kristian Golomeev | Odysseas Meladinis |  | 2 |  Italy | Federico Bocchia | Luca Dotto |  | 2 |  Japan | Katsumi Nakamura | Shinri Shioura |  | 2 |  Poland | Paweł Juraszek | Filip Wypych |  | 2 |  Russia | Aleksei Brianskii | Vladimir Morozov |  | 2 |  South_Africa | Douglas Erasmus | Brad Tandy |  | 2 |  United_States | Nathan Adrian | Anthony Ervin |  |  1 Quota - 13 NOC |  | 1 |  Algeria | Oussama Sahnoune |  | 1 |  Argentina | Federico Grabich |  | 1 |  Egypt | Ali Khalafalla |  | 1 |  Finland | Ari-Pekka Liukkonen |  | 1 |  Germany | Damian Wierling |  | 1 |  Great_Britain | Benjamin Proud |  | 1 |  Hungary | Krisztián Takács |  | 1 |  Israel | Ziv Kalontarov |  | 1 |  Lithuania | Simonas Bilis |  | 1 |  Puerto Rico | Erik Risolvato |  | 1 |  Romania | Norbert Trandafir |  | 1 |  Trinidad Tobago | George Bovell |  | 1 |  Ukraine | Andriy Hovorov |  |  Olympic Selection Time - 23.05 - 6 NOC |  | 1 |  Albania | Sidni Hoxha | [b] |  | 1 |  Croatia | Mario Todorović | [b] |  | 1 |  Hong Kong | Geoffrey Cheah | [b] |  | 1 |  Ireland | Shane Ryan | [Men 100m Backstroke] |  | 1 |  Suriname | Renzo Tjon A Joe |  | 1 |  Venezuela | Cristian Quintero | [Men 200m Freestyle] |  |  Universalitiy Places - 42 NOC |  | 1 |  Armenia | Vahan Mkhitaryan |  | 1 |  Bangladesh | Mahfizur Rahman Sagor |  | 1 |  Bahrain | Faraj Saleh |  | 1 |  Benin | Jules Bessan |  | 1 |  Bolivia | José Alberto Quintanilla |  | 1 |  Burkina Faso | Tindwene Sawadogo |  | 1 |  Burundi | Billy-Scott Irakose |  | 1 |  Centra Africa | Christian Nassif |  | 1 |  Comoros | Athoumane Soilihi |  | 1 |  Congo | Dienov Koka |  | 1 |  Djibouti | Borhane Abro |  | 1 |  Fiji | Meli Malani |  | 1 |  Gabon | Maël Amboguillat |  | 1 |  The Gambia | Pap Jonga |  | 1 |  Ghana | Abeiku Jackson |  | 1 |  Guinea | Amadou Camara |  | 1 |  Haiti | Frantz Dorsainvil |  | 1 |  Kosovo | Lum Zhaveli |  | 1 |  Laos | Santisouk Inthavong |  | 1 |  Lebanon | Anthony Barbar |  | 1 |  Libya | Ahmad Attellesey |  | 1 |  Malawi | Brave Lifa |  | 1 |  Maldives | Ibrahim Nishwan |  | 1 |  Marshall Islands | Giordan Harris |  | 1 |  FS of Micronesia | Dionisio Augustine |  | 1 |  Mongolia | Batsaikhany Dulguun |  | 1 |  Montenegro | Maksim Inić |  | 1 |  Niger | Albarchir Mouctar |  | 1 |  Nigeria | Samson Opuakpo |  | 1 |  Palau | Shawn Wallace |  | 1 |  Rwanda | Eloi Imaniraguha |  | 1 |  Saint Lucia | Jordan Augier |  | 1 |  Saint Vincent Grenadines | Sylvester Nikolas |  | 1 |  Senegal | Abdoul Niane |  | 1 |  Seychelles | Adam Viktora |  | 1 |  Sierra Leone | Osman Kamara |  | 1 |  Sudan | Abdelaziz Mohammed Ahmed |  | 1 |  Tajikistan | Olim Qurbonov |  | 1 |  Tanzania | Hilal Hemed Hilal |  | 1 |  Togo | Emeric Kpegba |  | 1 |  Uganda | Joshua Ekirikubinza |  | 1 |  Yemen | Ebrahim Al-Maleki |  | 87 | Total |   |   
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