| Final 20:20 | time | | L | React. | bib | | 1. Óscar Husillos |  ESP | 44.92s | CR | 6 | 0.164 | 202 | | 2. Luguelín Santos |  DOM | 45.09s | NIR | 5 | 0.217 | 188 | | 3. Pavel Maslák |  CZE | 45.47s | SB | 4 | 0.171 | 173 | | 4. Michael Cherry |  USA | 45.84s | | 3 | 0.173 | 407 | | 5. Deon Lendore |  TTO | 46.37s | | 1 | 0.237 | 386 | | 6. Aldrich Bailey Jr | USA | 46.44s | | 2 | 0.198 | 401 |
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| 200m: Óscar Husillos (ESP) 21.26s | | Qualification Standard (01.01.2017 - 19.02.2918): 46.70s | | Qualification Standard Outdoor (01.01.2017 - 19.02.2918): 45.00s |
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| World Indoor Record: Kerron Clement (USA) 44.57s 12 Mar 2005 Fayetteville, United States | | World Indoor Lead: Braton Taplin (GRN) 45.11s 3 Feb 2018 College Station, United States | | World Indoor Championship Record: Nerry Brenes, Costa Rica 45.11s 10 Mar 2012 Istanbul, Turkey |
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| | - First 2 from each heat progressed to Final. |
| Semi 1 20:06 | time | | L | React | bib | Rk | | 1. Luguelín Santos | DOM | 46.31s | Q SB | 3 | 0.191 | 188 | 3. | | 2. Aldrich Bailey Jr | USA | 46.327s | Q | 6 | 0.217 | 401 | 5. | | 3. Jakub Krzewina |  POL | 46.69s | | 5 | 0.187 | 339 | 9. | | 4. Javon Francis |  JAM | 46.73s | | 4 | 0.179 | 281 | 10. | | 5. Patrik Šorm | CZE | 47.04s | | 2 | 0.214 | 172 | 13. | | 6. Lucas Búa | ESP | 47.140s | | 1 | 0.158 | 197 | 15. |
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| 200m: Aldrich Bailey Jr (USA) 21.59s |
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| Semi 2 20:13 | time | | L | React | bib | Rk | | 1. Óscar Husillos | ESP | 45.69s | Q NIR | 5 | 0.178 | 202 | 1. | | 2. Michael Cherry | USA | 45.73s | Q | 6 | 0.177 | 407 | 2. | | 3. Rafał Omelko | POL | 46.39s | | 4 | 0.224 | 344 | 8. | | 4. Juander Santos | DOM | 46.83s | PB | 2 | 0.191 | 189 | 11. | | 5. Asa Guevara | TTO | 46.91s | | 1 | 0.168 | 385 | 12. | | 6. Lee Thompson |  GBR | 47.136s | | 3 | 0.207 | 231 | 14. |
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| 200m: Óscar Husillos (ESP) 21.30s |
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| Semi 3 20:20 | time | | L | React | bib | Rk | | 1. Pavel Maslák | CZE | 46.32s | Q | 4 | 0.176 | 173 | 4. | | 2. Deon Lendore | TTO | 46.330s | Q | 6 | 0.246 | 386 | 6. | | 3. Luka Janežič |  SLO | 46.37s | | 1 | 0.245 | 365 | 7. | | 4. Mikhail Litvin |  KAZ | 47.94s | | 5 | 0.233 | 293 | 16. | | 5. Chidi Okezie |  NGR | 48.53s | | 2 | 0.246 | 324 | 17. | | -. Yousef Karam |  KUW | DNF | | 3 | 0.215 | 304 | |
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| 200m: Pavel Maslák (CZE) 21.60s |
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| | | First 2 + Best 4 progress to Semi-Finals. After all athletes from Heat3 were disqualified more 2 best progressed. |
| Heat 1 11:20 | time | | L | React | bib | Rk | | 1. Jakub Krzewina | POL | 46.57s | Q | 5 | 0.220 | 339 | 3. | | 2. Deon Lendore | TTO | 46.68s | Q | 6 | 0.206 | 386 | 4. | | 3. Lucas Búa | ESP | 46.96s | q | 3 | 0.156 | 197 | 13. | | 4. Juander Santos | DOM | 47.02s | q | 4 | 0.169 | 189 | 16. | | 5. Michael Anthony Rasmijn |  ARU | 49.191s | NIR | 2 | 0.157 | 106 | 20. |
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| 200m: Deon Lendore (TTO) 21.62s |
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| Heat 2 11:27 | time | | L | React | bib | Rk | | 1. Luka Janežič | SLO | 46.45s | Q | 6 | 0.252 | 365 | 1. | | 2. Javon Francis | JAM | 46.87s | Q | 5 | 0.253 | 281 | 10. | | 3. Chidi Okezie | NGR | 46.91s | q | 4 | 0.255 | 324 | 11. | | 4. Asa Guevara | TTO | 46.92s | q | 3 | 0.162 | 385 | 12. | | 5. Kelvin Delvin Ramírez |  NCA | 49.88s | NIR | 1 | 0.237 | 320 | 22. | | 6. Tikie Terry Mael |  VAN | 49.92s | NIR | 2 | 0.198 | 435 | 23. |
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| 200m: Chidi Okezie (JAM) 21.87s |
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| Heat 3 11:34 | time | | L | React | bib | Rk | | -. Steven Gayle | JAM | DQ | | 3 | 0.212 | 282 | | | -. Abdalleleh Haroun |  QAT | DQ | | 5 | | 356 | | | -. Austris Karpinskis |  LAT | DQ | | 2 | 0.186 | 305 | | | -. Alonzo Russell |  BAH | DQ | | 4 | 0.205 | 114 | | | -. Bralon Taplin |  GRN | DQ | | 6 | 0.216 | 264 | |
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| 200m: Bralon Taplin (GRN) 21.81s |
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| Heat 4 11:41 | time | | L | React | bib | Rk | | 1. Michael Cherry | USA | 46.988s | Q | 5 | 0.173 | 407 | 15. | | 2. Rafał Omelko | POL | 47.13s | Q | 6 | 0.253 | 344 | 17. | | 3. Mikhail Litvin | KAZ | 47.16s | q | 3 | 0.187 | 293 | 18. | | 4. Vitalii Butrym |  UKR | 47.45s | | 4 | 0.230 | 393 | 19. | | 5. Mohamed Naail |  MDV | 49.98s | NIR | 2 | 0.167 | 314 | 24. |
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| 200m: Michael Cherry (USA) 21.83s |
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| Heat 5 11:48 | time | | L | React | bib | Rk | | 1. Aldrich Bailey Jr | USA | 46.77s | Q | 6 | 0.214 | 401 | 5. | | 2. Lee Thompson | GBR | 46.81s | Q | 5 | 0.225 | 231 | 7. | | 3. Patrik Šorm | CZE | 46.981s | q | 4 | 0.198 | 172 | 14. | | -. Nery Brenes |  CRC | DQ | | 3 | 0.176 | 165 | | | -. Mazen Alyasen |  KSA | DNF | | 2 | | 301 | |
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| 200m: Mazen Alyasen (KSA) 21.86s |
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| Heat 6 11:55 | time | | L | React | bib | Rk | | 1. Óscar Husillos | ESP | 46.51s | Q | 5 | 0.186 | 202 | 2. | | 2. Pavel Maslák | CZE | 46.80s | Q | 6 | 0.219 | 173 | 6. | | 3. Luguelín Santos | DOM | 46.83s | q | 3 | 0.177 | 188 | 8. | | 4. Yousef Karam | KUW | 46.86s | q | 4 | 0.205 | 304 | 9. | | 5. Davron Atabaev |  TJK | 49.200s | SB | 1 | 0.195 | 381 | 21. | | 6. Narek Ghukasyan |  ARM | 51.02s | PB | 2 | 0.203 | 105 | 25. |
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| 200m: Óscar Husillos (ESP) 21.66s |
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| Athlete | Birth | 2018 | Best | bib | O | | -. Mazen Alyasen | KSA | 08 Jul 1996 | | -. Davron Atabaev | TJK | 06 Jul 1993 | | -. Aldrich Bailey Jr | USA | 06 Feb 1994 | | -. Nery Brenes | CRC | 25 Sep 1985 | | -. Lucas Búa | ESP | 12 Jan 1994 | | -. Vіtalіi Butrym | UKR | 10 Jan 1991 | | -. Michael Cherry | USA | 23 Mar 1995 | | -. Brice Etes |  MON | 11 Apr 1984 | | -. Javon Francis | JAM | 14 Dec 1994 | | -. Samuel García | ESP | 04 Dec 1991 | | -. Steven Gayle | JAM | 19 Mar 1994 | | -. Narek Ghukasyan | ARM | 18 Oct 1992 | | -. Lalonde Gordon | TTO | 25 Nov 1988 | | -. Asa Guevara | TTO | 20 Dec 1995 | | -. Abdalleleh Haroun | QAT | 01 Jan 1997 | | -. Óscar Husillos | ESP | 18 Jul 1993 | | -. Luka Janežič | SLO | 14 Nov 1995 | | -. Yousef Karam | KUW | 15 Jul 1993 | | -. Austris Karpinskis | LAT | 14 Jun 1998 | | -. Sadam Suliman Koumi El Nour |  SUD | 06 Apr 1994 | | -. Jakub Krzewina | POL | 10 Oct 1989 | | -. Deon Lendore | TTO | 28 Oct 1992 | | -. Mikhail Litvin | KAZ | 05 Jan 1996 | | -. Tikie Terry Mael | VAN | 07 Jun 1998 | | -. Pavel Maslák | CZE | 21 Feb 1991 | | -. Mohamed Naail | MDV | 17 Jan 2000 | | -. Vernon Norwood | USA | 10 Apr 1992 | | -. Chidi Okezie | NGR | 08 Aug 1993 | | -. Rafał Omelko | POL | 16 Jan 1989 | | -. Kelvin Delvin Ramírez | NCA | 15 Feb 1997 | | -. Michael Anthony Rasmijn | ARU | 12 Dec 1991 | | -. Alonzo Russell | BAH | 08 Feb 1992 | | -. Luguelín Santos | DOM | 12 Nov 1992 | | -. Juander Santos | DOM | 07 May 1995 | | -. Patrik Šorm | CZE | 21 Nov 1993 | | -. Bralon Taplin | GRN | 08 May 1992 | | -. Lee Thompson | GBR | 05 Mar 1997 | | No Qualification Standard 46.70s in 2016. |
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