| Men 100m Breaststroke Swimming V World Championship 1986 Madrid, Spain - Sunday, 17th August - Gold Medal: Victor Davis, Canada          | 
| Final |   | time |   | gap | L | ag | pts |  | 1. Victor Davis |   Canada | 1:02.71 | CR |   | 5 | 22 | 858  |  | 2. Gianni Minervini |   Italy | 1:03.00 |   | +0.29s | 3 | 19 | 847  |  | 3. Dmitry Volkov |   Soviet Union | 1:03.30 |   | +0.59s | 6 | 20 | 835  |  | 4. Rolf Beab |   West Germany | 1:03.59 |   | +0.88s | 7 | 22 | 823  |  | 5. Bert Gobel |   West Germany | 1:03.62 |   | +0.91s | 2 | 23 | 822  |  | 6. Hisashi Fuwa |   Japan | 1:03.81 |   | +1.10s | 8 |   | 815  |  | 7. Pablo Restrepo |   Colombia | 1:03.95 |   | +1.24s | 1 | 26 | 810  |  | -. Adrian Moorhouse |   Great Britain | DSQ |   |   | 4 | 22 |   |   
 Adrian Moorhouse, Great Britain finished first, but was disqualified for faulty turn.
 
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| Final |   | time |   | gap | L | ag |  | 9. Thomas Bohm |   Austria | 1:03.51 |   |   | 5 | 20 |  | 10.David Lundberg |   United States | 1:04.17 |   | +0.66s | 1 |   |  | 11.Eduard Klimentyev |   Soviet Union | 1:04.24 |   | +0.73s | 7 |   |  | 12.Lorenzo Carbonari |   Italy | 1:04.39 |   | +0.88s | 2 | 20 |  | 13.Steven Bentley |   United States | 1:04.40 |   | +0.89s | 4 |   |  | 14.Ron Dekker |   Netherlands | 1:04.56 |   | +1.05s | 3 | 20 |  | 15.Etienne Dagon |   Switzerland | 1:04.64 |   | +1.13s | 6 | 25 |  | 15.Cicero Tortelli |   Brazil | 1:04.64 |   | +1.13s | 8 | 19 |   
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Heats - Sunday, 17th August | 
| Best 8 times advanced to Final. Next 8 to Final B. | 
| Heat 6 |   | time |   | gap | L | ag | Rk |  | 2. Victor Davis |   Canada | 1:03.16 |   | +0.88s | - | 22 | 1.  |  | 8. Hisashi Fuwa |   Japan | 1:04.07 |   | +1.79s | - |   | 2.  |  | 10.Ron Dekker |   Netherlands | 1:04.51 |   | +2.23s | - | 20 | 3.  |  | 16.Cicero Tortelli |   Brazil | 1:05.26 |   | +2.98s | - | 19 | 4.  |  | 17.Jan-Erick Olsen |   Norway | 1:05.51 |   | +3.23s | - | 20 | 5.  |  | 22.Grant Forbes |   New Zealand | 1:06.12 |   | +3.84s | - |   | 6.  |  | 33.Manuel Gutierrez |   Panama | 1:07.93 |   | +5.65s | - | 21 | 7.  |  | 42.Marc Seimetz |   Luxembourg | 1:10.43 |   | +8.15s | - |   | 8 |   
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| Heat 5 |   | time |   | gap | L | ag | Rk |  | 3. Gianni Minervini |   Italy | 1:03.27 |   | +0.99s | - | 19 | 1.  |  | 4. Dmitry Volkov |   Soviet Union | 1:03.78 |   | +1.50s | - | 20 | 2.  |  | 12.Lorenzo Carbonari |   Italy | 1:04.58 |   | +2.30s | - | 20 | 3.  |  | 21.Darcy Wallingford |   Canada | 1:05.71 |   | +3.43s | - |   | 4.  |  | 27.Sergio Lopez |   Spain | 1:06.77 |   | +4.49s | - | 18 | 5.  |  | 30.Henrik Tagesson |   Sweden | 1:07.06 |   | +4.78s | - |   | 6.  |  | 31.Frank Vijver |   Netherlands | 1:07.78 |   | +5.50s | - |   | 7.  |  | -. Giuliano Tomassini |   San Marino | DSQ |   |   | - |   |   |   
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| Heat 4 |   | time |   | gap | L | ag | Rk |  | 5. Bert Gobel |   West Germany | 1:03.82 |   | +1.54s | - | 23 | 1.  |  | 9. Steven Bentley |   United States | 1:04.25 |   | +1.97s | - |   | 2.  |  | 11.Etienne Dagon |   Switzerland | 1:04.57 |   | +2.29s | - | 25 | 3.  |  | 24.Ramon Camallonga |   Spain | 1:06.23 |   | +3.95s | - | 17 | 4.  |  | 25.Richard Lockhart |   New Zealand | 1:06.43 |   | +4.15s | - | 23 | 5.  |  | 32.Mario Vela |   Mexico | 1:07.81 |   | +5.53s | - |   | 6.  |  | 36.Declan Connaughton |   Ireland | 1:08.49 |   | +6.21s | - |   | 7.  |  | 44.Michele Piva |   San Marino | 1:14.78 |   | +12.50s | - | 20 | 8.  |   
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| Heat 3 |   | time |   | gap | L | ag | Rk |  | 1. Adrian Moorhouse |   Great Britain | 1:02.28 | CR | ER | - | 22 | 1. |  | 14.David Lundberg |   United States | 1:04.81 |   | +2.53s | - |   | 2.  |  | 26.Kenji Watanabe |   Japan | 1:06.53 |   | +4.25s | - | 17 | 3.  |  | 28.Peter Rohde |   Denmark | 1:06.78 |   | +4.50s | - | 21 | 4.  |  | 29.Giannis Milidakis |   Greece | 1:06.90 |   | +4.62s | - |   | 5.  |  | 40.Edvard Edvardsson |   Iceland | 1:08.92 |   | +6.64s | - | 19 | 6.  |  | 43.Ayman Nadim |   Egypt | 1:11.04 |   | +8.76s | - | 22 | 7.  |  | -. Andreas Void |   Norway | DSQ |   |   | - |   |   |   
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| Heat 2 |   | time |   | gap | L | ag | Rk |  | 6. Rolf Beab |   West Germany | 1:03.88 |   | +1.60s | - | 22 | 1.  |  | 7. Pablo Restrepo |   Colombia | 1:03.98 |   | +1.70s | - | 26 | 2.  |  | 18.Pedro Manu Hernandez |   Cuba | 1:05.55 |   | +3.27s | - |   | 3.  |  | 20.Eyal Shtigman |   Israel | 1:05.59 |   | +3.31s | - | 23 | 4.  |  | 23.Alexandre Yokochi |   Portugal | 1:06.16 |   | +3.88s | - | 21 | 5.  |  | 35.Hailin Zhou |   China | 1:08.27 |   | +5.99s | - |   | 6.  |  | 41.Manuel Guzman |   Puerto Rico | 1:09.83 |   | +7.55s | - | 16 | 7.  |  | -. Nick Gillingham |   Great Britain | DSQ |   |   | - | 19 |   |   
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| Heat 1 |   | time |   | gap | L | ag | Rk |  | 13.Eduard Klimentyev |   Soviet Union | 1:04.66 |   | +2.38s | - |   | 1.  |  | 15.Thomas Bohm |   Austria | 1:04.91 |   | +2.63s | - | 20 | 2.  |  | 19.Thierry Pata |   France | 1:05.57 |   | +3.29s | - | 21 | 3.  |  | 34.Jorge Henao |   Venezuela | 1:08.12 |   | +5.84s | - | 24 | 4.  |  | 37.Zhong Lai |   China | 1:08.69 |   | +6.41s | - |   | 5.  |  | 38.Hsin-Yen Tsai |   Chinese Taipei | 1:08.73 |   | +6.45s | - | 15 | 6.  |  | 39.Peter Szabo |   Hungary | 1:08.90 |   | +6.62s | - | 18 | 7.  |  | -. Fransisco Carvalho |   Brazil | DSQ |   |   | - |   |   |   
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