| Heat 1 | Hippos Hall - 06 April 2012 - Start Time: 09:02 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 1149 | ZAVATTERO Benoit | 1960 | M50 | FRA FRANCE | 55.97 Q |
| 2 | 2 | 1132 | PILOT Philippe | 1962 | M50 | FRA FRANCE | 57.18 q |
| 3 | 3 | 943 | STROMBERG Christer | 1960 | M50 | FIN FINLAND | 1:00.13 q |
|
| Heat 2 | Hippos Hall - 06 April 2012 - Start Time: 09:05 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 2 | 1795 | ZULAUF Stephan | 1959 | M50 | SUI SWITZERLAND | 59.15 Q |
| 2 | 1 | 260 | STILLLING Ole | 1962 | M50 | DEN DENMARK | 59.48 q |
| 3 | 3 | 1756 | TATEVOSYAN Vrezh | 1960 | M50 | RUS RUSSIA | 1:06.04 |
| 4 | 4 | 1203 | MAY Michael | 1960 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 1:14.46 |
|
| Heat 3 | Hippos Hall - 06 April 2012 - Start Time: 09:09 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 3 | 1056 | BERNARD Vincent | 1961 | M50 | FRA FRANCE | 57.25 Q |
| 2 | 2 | 1632 | ZURAWSKI Bogumil | 1959 | M50 | POL POLAND | 57.54 q |
| 3 | 1 | 309 | GOIKOETXEA Ramon | 1959 | M50 | ESP SPAIN | 1:03.34 |
| | 4 | 1720 | OZYUMENKO Igor | 1960 | M50 | RUS RUSSIA | DQ |
|
| Heat 4 | Hippos Hall - 06 April 2012 - Start Time: 09:13 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 2 | 1238 | TUNSTALL Neil | 1962 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 59.06 Q |
| 2 | 3 | 256 | PEDERSEN Knud Erik | 1960 | M50 | DEN DENMARK | 59.56 q |
| 3 | 4 | 1309 | KONOPKA Matthias | 1958 | M50 | GER GERMANY | 1:02.57 |
|
| Heat 5 | Hippos Hall - 06 April 2012 - Start Time: 09:16 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 2 | 1199 | LEWIS Bob | 1961 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 57.03 Q |
| 2 | 3 | 1469 | DI LUZIO Roberto | 1960 | M50 | ITA ITALY | 1:00.38 q |
| 3 | 4 | 390 | AHOKAS Harri | 1961 | M50 | FIN FINLAND | 1:02.85 |
|
| Heat 6 | Hippos Hall - 06 April 2012 - Start Time: 09:20 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 1 | 1482 | MANFREDI Alessandro | 1960 | M50 | ITA ITALY | 1:02.08 Q |
| 2 | 4 | 1473 | FURLAN Eugenio | 1961 | M50 | ITA ITALY | 1:02.39 q |
| 3 | 3 | 1291 | HOFNER Reinhard | 1958 | M50 | GER GERMANY | 1:04.74 |
| | 2 | 1973 | MARTINEZ Luis | 1962 | M50 | VEN VENEZUELA | DNS |
|
| Heat 7 | Hippos Hall - 06 April 2012 - Start Time: 09:23 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 1059 | BOAVENTURA Lopes Correi | 1960 | M50 | FRA FRANCE | 56.97 Q |
| 2 | 2 | 1333 | OBERLIESSEN Peter | 1960 | M50 | GER GERMANY | 57.04 q |
| 3 | 3 | 284 | CANTO MORENO Jose | 1961 | M50 | ESP SPAIN | 1:00.00 q |
| | 1 | 880 | RYYNANEN Juhani | 1959 | M50 | FIN FINLAND | DNS |
|
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 1149 | ZAVATTERO Benoit | 1960 | M50 | FRA FRANCE | 55.97 Q |
| 2 | 4 | 1059 | BOAVENTURA Lopes Correi | 1960 | M50 | FRA FRANCE | 56.97 Q |
| 3 | 2 | 1199 | LEWIS Bob | 1961 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 57.03 Q |
| 4 | 2 | 1333 | OBERLIESSEN Peter | 1960 | M50 | GER GERMANY | 57.04 q |
| 5 | 2 | 1132 | PILOT Philippe | 1962 | M50 | FRA FRANCE | 57.18 q |
| 6 | 3 | 1056 | BERNARD Vincent | 1961 | M50 | FRA FRANCE | 57.25 Q |
| 7 | 2 | 1632 | ZURAWSKI Bogumil | 1959 | M50 | POL POLAND | 57.54 q |
| 8 | 2 | 1238 | TUNSTALL Neil | 1962 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 59.06 Q |
| 9 | 2 | 1795 | ZULAUF Stephan | 1959 | M50 | SUI SWITZERLAND | 59.15 Q |
| 10 | 1 | 260 | STILLLING Ole | 1962 | M50 | DEN DENMARK | 59.48 q |
| 11 | 3 | 256 | PEDERSEN Knud Erik | 1960 | M50 | DEN DENMARK | 59.56 q |
| 12 | 3 | 284 | CANTO MORENO Jose | 1961 | M50 | ESP SPAIN | 1:00.00 q |
| 13 | 3 | 943 | STROMBERG Christer | 1960 | M50 | FIN FINLAND | 1:00.13 q |
| 14 | 3 | 1469 | DI LUZIO Roberto | 1960 | M50 | ITA ITALY | 1:00.38 q |
| 15 | 1 | 1482 | MANFREDI Alessandro | 1960 | M50 | ITA ITALY | 1:02.08 Q |
| 16 | 4 | 1473 | FURLAN Eugenio | 1961 | M50 | ITA ITALY | 1:02.39 q |
| 17 | 4 | 1309 | KONOPKA Matthias | 1958 | M50 | GER GERMANY | 1:02.57 |
| 18 | 4 | 390 | AHOKAS Harri | 1961 | M50 | FIN FINLAND | 1:02.85 |
| 19 | 1 | 309 | GOIKOETXEA Ramon | 1959 | M50 | ESP SPAIN | 1:03.34 |
| 20 | 3 | 1291 | HOFNER Reinhard | 1958 | M50 | GER GERMANY | 1:04.74 |
| 21 | 3 | 1756 | TATEVOSYAN Vrezh | 1960 | M50 | RUS RUSSIA | 1:06.04 |
| 22 | 4 | 1203 | MAY Michael | 1960 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 1:14.46 |
| | 4 | 1720 | OZYUMENKO Igor | 1960 | M50 | RUS RUSSIA | DQ |
| | 1 | 880 | RYYNANEN Juhani | 1959 | M50 | FIN FINLAND | DNS |
| | 2 | 1973 | MARTINEZ Luis | 1962 | M50 | VEN VENEZUELA | DNS |
|
| Semi-final 1 | Hippos Hall - 07 April 2012 - Start Time: 12:35 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 1059 | BOAVENTURA Lopes Correi | 1960 | M50 | FRA FRANCE | 56.69 Q |
| 2 | 3 | 1632 | ZURAWSKI Bogumil | 1959 | M50 | POL POLAND | 57.53 q |
| 3 | 1 | 1482 | MANFREDI Alessandro | 1960 | M50 | ITA ITALY | 57.80 |
| 4 | 2 | 284 | CANTO MORENO Jose | 1961 | M50 | ESP SPAIN | 1:00.16 |
|
| Semi-final 2 | Hippos Hall - 07 April 2012 - Start Time: 12:39 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 1199 | LEWIS Bob | 1961 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 55.14 Q |
| 2 | 3 | 1795 | ZULAUF Stephan | 1959 | M50 | SUI SWITZERLAND | 57.68 |
| 3 | 1 | 1473 | FURLAN Eugenio | 1961 | M50 | ITA ITALY | 1:01.81 |
| | 2 | 260 | STILLLING Ole | 1962 | M50 | DEN DENMARK | DNS |
|
| Semi-final 3 | Hippos Hall - 07 April 2012 - Start Time: 12:42 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 3 | 1333 | OBERLIESSEN Peter | 1960 | M50 | GER GERMANY | 55.87 Q |
| 2 | 4 | 1149 | ZAVATTERO Benoit | 1960 | M50 | FRA FRANCE | 55.97 q |
| 3 | 2 | 1132 | PILOT Philippe | 1962 | M50 | FRA FRANCE | 57.55 q |
| 4 | 1 | 943 | STROMBERG Christer | 1960 | M50 | FIN FINLAND | 59.80 |
|
| Semi-final 4 | Hippos Hall - 07 April 2012 - Start Time: 12:46 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 3 | 1238 | TUNSTALL Neil | 1962 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 57.08 Q |
| 2 | 4 | 1056 | BERNARD Vincent | 1961 | M50 | FRA FRANCE | 57.60 q |
| 3 | 1 | 1469 | DI LUZIO Roberto | 1960 | M50 | ITA ITALY | 1:00.66 |
| | 2 | 256 | PEDERSEN Knud Erik | 1960 | M50 | DEN DENMARK | DNS |
|
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 1199 | LEWIS Bob | 1961 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 55.14 Q |
| 2 | 3 | 1333 | OBERLIESSEN Peter | 1960 | M50 | GER GERMANY | 55.87 Q |
| 3 | 4 | 1149 | ZAVATTERO Benoit | 1960 | M50 | FRA FRANCE | 55.97 q |
| 4 | 4 | 1059 | BOAVENTURA Lopes Correi | 1960 | M50 | FRA FRANCE | 56.69 Q |
| 5 | 3 | 1238 | TUNSTALL Neil | 1962 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 57.08 Q |
| 6 | 3 | 1632 | ZURAWSKI Bogumil | 1959 | M50 | POL POLAND | 57.53 q |
| 7 | 2 | 1132 | PILOT Philippe | 1962 | M50 | FRA FRANCE | 57.55 q |
| 8 | 4 | 1056 | BERNARD Vincent | 1961 | M50 | FRA FRANCE | 57.60 q |
| 9 | 3 | 1795 | ZULAUF Stephan | 1959 | M50 | SUI SWITZERLAND | 57.68 |
| 10 | 1 | 1482 | MANFREDI Alessandro | 1960 | M50 | ITA ITALY | 57.80 |
| 11 | 1 | 943 | STROMBERG Christer | 1960 | M50 | FIN FINLAND | 59.80 |
| 12 | 2 | 284 | CANTO MORENO Jose | 1961 | M50 | ESP SPAIN | 1:00.16 |
| 13 | 1 | 1469 | DI LUZIO Roberto | 1960 | M50 | ITA ITALY | 1:00.66 |
| 14 | 1 | 1473 | FURLAN Eugenio | 1961 | M50 | ITA ITALY | 1:01.81 |
| | 2 | 260 | STILLLING Ole | 1962 | M50 | DEN DENMARK | DNS |
| | 2 | 256 | PEDERSEN Knud Erik | 1960 | M50 | DEN DENMARK | DNS |
|
| Final | Hippos Hall - 08 April 2012 - Start Time: 09:41 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 3 | 1333 | OBERLIESSEN Peter | 1960 | M50 | GER GERMANY | 54.92 |
| | | | WORLD CHAMPION | | | | |
| 2 | 2 | 1149 | ZAVATTERO Benoit | 1960 | M50 | FRA FRANCE | 55.13 |
| 3 | 4 | 1238 | TUNSTALL Neil | 1962 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 55.18 |
| 4 | 4 | 1199 | LEWIS Bob | 1961 | M50 | GBR GREAT BRITAIN & NORTH IRELAND | 55.24 |
| 5 | 3 | 1632 | ZURAWSKI Bogumil | 1959 | M50 | POL POLAND | 57.14 |
| 6 | 2 | 1132 | PILOT Philippe | 1962 | M50 | FRA FRANCE | 57.49 |
| 7 | 1 | 1059 | BOAVENTURA Lopes Correi | 1960 | M50 | FRA FRANCE | 58.16 |
| 8 | 1 | 1056 | BERNARD Vincent | 1961 | M50 | FRA FRANCE | 1:01.22 |
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