| Heat 1 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 1 | 1602 | SANTAMARIA UGARTE Jose | 1969 | M45 | ESP SPAIN | 1:05.90 |
| 2 | 2890 | SZABO Donat | 1972 | M45 | HUN HUNGARY | 1:02.04 |
| 3 | 2465 | SHORTRIDGE David | 1970 | M45 | GBR GREAT BRITAIN & N. IRELAND | 58.39 |
| 4 | 1902 | ABATUCCI Antoine | 1969 | M45 | FRA FRANCE | 56.00 |
| 5 | 1705 | VALLADARES GOYA Marcos | 1972 | M45 | ESP SPAIN | 54.49 |
| 6 | 1825 | LAINE Krister | 1972 | M45 | FIN FINLAND | 53.45 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
| Heat 2 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 1 | 847 | GOMEZ GONZALEZ Juan Ant | 1970 | M45 | ESP SPAIN | 1:04.66 |
| 2 | 1518 | ROMAN Francisco | 1971 | M45 | ESP SPAIN | 1:03.17 |
| 3 | 3245 | PISTILLO Maurizio | 1971 | M45 | ITA ITALY | 56.71 |
| 4 | 1407 | PUENTES GARCIA Luis Fra | 1970 | M45 | ESP SPAIN | 57.35 |
| 5 | 2551 | BODENMUELLER Klaus | 1969 | M45 | GER GERMANY | 54.90 |
| 6 | 2185 | BENEDICKTER Peter | 1969 | M45 | GBR GREAT BRITAIN & N. IRELAND | 54.32 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
| Heat 3 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 2 | 479 | CASTANDER Francisco Jav | 1968 | M45 | ESP SPAIN | 1:00.20 |
| 3 | 3476 | PECZEK Adam | 1972 | M45 | POL POLAND | 59.00 |
| 4 | 3023 | ACCIACCAFERRI Pierluigi | 1968 | M45 | ITA ITALY | 55.69 |
| 5 | 1132 | MARTINEZ MATEO Donato | 1968 | M45 | ESP SPAIN | 55.22 |
| 6 | 2287 | GARDINER Michael | 1968 | M45 | GBR GREAT BRITAIN & N. IRELAND | 51.74 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
| Heat 4 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 2 | 974 | JORNET MONTAGUT Jordi | 1968 | M45 | ESP SPAIN | 1:00.80 |
| 3 | 3489 | STEPNIAK Radoslaw | 1971 | M45 | POL POLAND | 58.50 |
| 4 | 1206 | MONTES CHICO Jesus | 1969 | M45 | ESP SPAIN | 55.69 |
| 5 | 2411 | OSUNSAMI Michael | 1969 | M45 | GBR GREAT BRITAIN & N. IRELAND | 55.12 |
| 6 | 3249 | PRATESI Simone | 1972 | M45 | ITA ITALY | 52.89 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
| Heat 5 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 2 | 861 | GONZALEZ CARDOSO Juan J | 1970 | M45 | ESP SPAIN | 1:01.04 |
| 3 | 3180 | LOMBARDI Tommaso | 1972 | M45 | ITA ITALY | 57.36 |
| 4 | 1420 | RAMIREZ Donato | 1969 | M45 | ESP SPAIN | 55.71 |
| 5 | 68 | GOOSSENS Alain | 1971 | M45 | BEL BELGIUM | 55.01 |
| 6 | 2187 | BETTS Edward | 1971 | M45 | GBR GREAT BRITAIN & N. IRELAND | 53.05 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
| Heat 6 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 1 | 1197 | MOLINA PARRA Dionisio | 1968 | M45 | ESP SPAIN | 1:10.0 |
| 2 | 1603 | SANTIAGO CRUZ Jose Carl | 1970 | M45 | ESP SPAIN | 1:01.75 |
| 3 | 958 | IZCUE CAPO Enrique | 1971 | M45 | ESP SPAIN | 58.37 |
| 4 | 3751 | TEGNER Henrik | 1970 | M45 | SWE SWEDEN | 55.98 |
| 5 | 2261 | EDWARDS Neal | 1972 | M45 | GBR GREAT BRITAIN & N. IRELAND | 54.8 |
| 6 | 782 | GARCIA GARCIA Carlos | 1972 | M45 | ESP SPAIN | 53.16 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
| Heat 7 | Gallur Municipal Sports Centre - 19 March 2018 - 14:01 |
| Lane | Bib | Athlete | Year | Cat. | | SB |
| 2 | 2330 | IONS Julian | 1972 | M45 | GBR GREAT BRITAIN & N. IRELAND | 1:00.0 |
| 3 | 241 | ALMODOVAR GALINDO Blas | 1969 | M45 | ESP SPAIN | 59.13 |
| 4 | 2864 | KONTONIS Dionysios | 1969 | M45 | GRE GREECE | 55.50 |
| 5 | 1408 | PUIG ARGUDO Jordi | 1972 | M45 | ESP SPAIN | 55.46 |
| 6 | 1026 | LOPEZ ANAYA Juan Luis | 1970 | M45 | ESP SPAIN | 51.46 |
| Qual.Rule: first 2 of each heat plus the 4 fastest times qualified. |
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