| Venue: Stade D'Athletisme CIBC. _ | | Weather conditions: Temperature: 22°C, Humidity: 64%, Conditions: Sunny. | | Guadalajara 2011 Athletics Men_800m. |
| Final> Start: 18:40 | time | | L | birth | bib | | 1. Clayton Murphy |  USA | 1:47.19 | | 5 | 26 FEB 1995 | 730 | | 2. Rafith Rodriguez |  COL | 1:47.23 | | 4 | 1 JUN 1989 | 393 | | 3. Ryan Martin | USA | 1:47.73 | | 3 | 23 MAR 1989 | 724 | | 4. Ricardo Cunningham |  JAM | 1:48.65 | | 8 | 10 APR 1982 | 544 | | 5. Cleiton Abrao |  BRA | 1:48.82 | | 7 | 8 SEP 1989 | 172 | | 6. Aaron Evans |  BER | 1:49.07 | | 1 | 31 JAN 1990 | 161 | | 7. Andres Gabriel Arroyo |  PUR | 1:49.08 | | 2 | 7 JUN 1995 | 640 | | 8. Jowayne Hibbert | JAM | 1:49.24 | | 6 | 1 AUG 1991 | 549 |
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| Intermediate time | | 400m 53.07s Rafith Rodriguez (COL) |
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| World Record: David Rudisha (KEN) 1:40.91, London (GBR), 09.08.2012. | | Pan American Games Record: Yeimer Lopez (CUB) 1:44.58s, Rio de Janeiro (BRA), 28.07.2007. |
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Heats - Wednesday 22.07 Morning | | First 3 and Best 2 from each heat progressed to Final. | | Weather conditions: Temperature: 19°C, Humidity: 59%, Conditions: Sunny. |
| Heat 1 Start: 11:35. | time | | L | birth | bib | | 1. Clayton Murphy | USA | 1:48.88 | | 6 | 26 FEB 1995 | 730 | | 2. Rafith Rodriguez | COL | 1:49.06 | | 5 | 1 JUN 1989 | 393 | | 3. Ricardo Cunningham | JAM | 1:49.22 | | 8 | 10 APR 1982 | 544 | | 4. Aaron Evans | BER | 1:49.30 | | 7 | 31 JAN 1990 | 161 | | 5. Lutimar Paes | BRA | 1:49.76 | | 3 | 14 DEC 1988 | 207 | | 6. Andy Gonzalez |  CUB | 1:51.14 | | 4 | 17 OCT 1987 | 424 | | 7. Anthony Romaniw |  CAN | 1:56.55 | | 2 | 15 SEP 1991 | 292 |
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| Intermediate time | | 400m 54.19s Rafith Rodriguez (COL) |
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| Heat 2 Start: 11:45. | time | | L | birth | bib | | 1. Ryan Martin | USA | 1:48.99 | | 6 | 23 MAR 1989 | 724 | | 2. Jowayne Hibbert | JAM | 1:49.22 | | 4 | 1 AUG 1991 | 549 | | 3. Cleiton Abrao | BRA | 1:49.32 | | 8 | 8 SEP 1989 | 172 | | 4. Andres Gabriel Arroyo | PUR | 1:49.36 | | 3 | 7 JUN 1995 | 640 | | 5. Brandon Mcbride | CAN | 1:49.65 | | 5 | 15 JUN 1994 | 283 | | 6. James Eichberger |  MEX | 1:49.68 | | 7 | 8 APR 1990 | 586 | | 7. Lucirio Antonio Garrido Acosta |  VEN | 1:49.84 | | 1 | 8 APR 1992 | 791 | | 8. Shaquille Dill | BER | 1:52.25 | | 2 | 4 SEP 1993 | 160 |
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| Intermediate time | | 400m 54.30s Lucirio Antonio Garrido Acosta (VEN) |
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| Athlete | Season | Personal | L | Birth | bib | | -. Rafith Rodriguez | COL | 1:45.53 | 1:44.31 | 5 | 1 JUN 1989 | 393 | | -. Clayton Murphy | USA | 1:45.59 | 1:45.59 | 6 | 26 FEB 1995 | 730 | | -. Brandon Mcbride | CAN | 1:45.87 | 1:45.35 | 5 | 15 JUN 1994 | 283 | | -. Ryan Martin | USA | 1:46.04 | 1:44.77 | 6 | 23 MAR 1989 | 724 | | -. Andy Gonzalez | CUB | 1:46.28 | 1:45.58 | 4 | 17 OCT 1987 | 424 | | -. Andres Gabriel Arroyo | PUR | 1:46.49 | 1:46.49 | 3 | 7 JUN 1995 | 640 | | -. Anthony Romaniw | CAN | 1:46.58 | 1:45.60 | 2 | 15 SEP 1991 | 292 | | -. Ricardo Cunningham | JAM | 1:47.15 | 1:47.15 | 8 | 10 APR 1982 | 544 | | -. Aaron Evans | BER | 1:47.37 | 1:46.26 | 7 | 31 JAN 1990 | 161 | | -. Jowayne Hibbert | JAM | 1:47.50 | 1:47.50 | 4 | 1 AUG 1991 | 549 | | -. Lucirio Antonio Garrido Acosta | VEN | 1:47.83 | 1:46.60 | 1 | 8 APR 1992 | 791 | | -. Cleiton Abrao | BRA | 1:47.91 | 1:45.59 | 8 | 8 SEP 1989 | 172 | | -. Lutimar Paes | BRA | 1:47.92 | 1:45.32 | 3 | 14 DEC 1988 | 207 | | -. James Eichberger | MEX | 1:48.83 | 1:45.88 | 7 | 8 APR 1990 | 586 | | -. Shaquille Dill | BER | | 1:47.76 | 2 | 4 SEP 1993 | 160 |
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