| Heat 1 | Geovillage Sport & Wellness - 20 September 2019 - Start Time: 10:46 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 3 | 696 | DRUMRIGHT Luke (I) | 1998 | M | USA UNITED STATES OF AMERICA | 52.21 |
| 2 | 8 | 682 | DONOVAN Glenn (I) | 1997 | M | USA UNITED STATES OF AMERICA | 55.06 |
| 3 | 4 | 648 | MENC Alperen | 2002 | M | TUR TURKEY | 55.60 |
| 4 | 5 | 238 | MCDONNELL Christopher | 1991 | M | GBR GREAT BRITAIN & N.I. | 55.70 |
| 5 | 2 | 476 | MATUSIEWICZ Bartosz | 1998 | M | POL POLAND | 57.65 |
| 6 | 6 | 489 | MUSZYNSKI Jakub | 2003 | M | POL POLAND | 57.75 |
| 7 | 1 | 330 | ASHE Eoghan | 2003 | M | IRL IRELAND | 59.83 |
| 8 | 7 | 32 | NIELSEN Oliver-roug | 1995 | M | DEN DENMARK | 1:01.85 |
|
| Heat 2 | Geovillage Sport & Wellness - 20 September 2019 - Start Time: 10:50 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 552 | VIEIRA Jose' | 1983 | M | POR PORTUGAL | 43.55 q |
| 2 | 5 | 502 | MATOS Diogo | 1999 | M | POR PORTUGAL | 44.37 q |
| 3 | 3 | 176 | HOLMES Mark | 1983 | M | GBR GREAT BRITAIN & N.I. | 47.80 |
| 4 | 7 | 269 | ROBERTS William | 1999 | M | GBR GREAT BRITAIN & N.I. | 48.74 |
| 5 | 2 | 368 | HOGG David | 2002 | M | IRL IRELAND | 51.77 |
| 6 | 6 | 637 | GUNGOR Serhat-emir | 2000 | M | TUR TURKEY | 55.18 |
| 7 | 1 | 198 | LACEY Zachary | 2000 | M | GBR GREAT BRITAIN & N.I. | 57.35 |
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| Heat 3 | Geovillage Sport & Wellness - 20 September 2019 - Start Time: 10:52 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 547 | VAZ Joao | 1992 | M | POR PORTUGAL | 43.87 q |
| 2 | 5 | 561 | DEGTYAREV Alexey | 2005 | M | RUS RUSSIA | 43.99 q |
| 3 | 6 | 714 | SUTER Joseph (I) | 1993 | M | USA UNITED STATES OF AMERICA | 46.11 q |
| 4 | 3 | 475 | KRUPINSKI Pawel | 1987 | M | POL POLAND | 47.32 |
| 5 | 2 | 245 | PELLOW Leo | 2002 | M | GBR GREAT BRITAIN & N.I. | 50.56 |
| 6 | 1 | 391 | TULLY Eoin | 2000 | M | IRL IRELAND | 52.88 |
| 7 | 7 | 188 | HUGHES Dylan | 2002 | M | GBR GREAT BRITAIN & N.I. | 54.45 |
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| Heat 4 | Geovillage Sport & Wellness - 20 September 2019 - Start Time: 10:54 |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 465 | ZAFFARONI Paolo | 1996 | M | ITA ITALIA | 41.50 q |
| | | | | | | ASD DELFINI CREMONA ONLUS | |
| 2 | 3 | 266 | REED William | 1993 | M | GBR GREAT BRITAIN & N.I. | 47.11 q |
| 3 | 5 | 77 | PAIS Hardi | 1996 | M | EST ESTONIA | 47.23 q |
| 4 | 6 | 510 | REGO Diogo | 1997 | M | POR PORTUGAL | 48.53 |
| 5 | 1 | 279 | ROUYER-BROWN Stephane | 1997 | M | GBR GREAT BRITAIN & N.I. | 52.09 |
| 6 | 2 | 204 | LAKE William | 1997 | M | GBR GREAT BRITAIN & N.I. | 52.74 |
| 7 | 7 | 490 | SZYMICZEK Szymon | 2004 | M | POL POLAND | 1:00.94 |
|
| SUMMARY | Geovillage Sport & Wellness |
| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 4 | 465 | ZAFFARONI Paolo | 1996 | M | ITA ITALIA | 41.50 q |
| | | | | | | ASD DELFINI CREMONA ONLUS | |
| 2 | 4 | 552 | VIEIRA Jose' | 1983 | M | POR PORTUGAL | 43.55 q |
| 3 | 4 | 547 | VAZ Joao | 1992 | M | POR PORTUGAL | 43.87 q |
| 4 | 5 | 561 | DEGTYAREV Alexey | 2005 | M | RUS RUSSIA | 43.99 q |
| 5 | 5 | 502 | MATOS Diogo | 1999 | M | POR PORTUGAL | 44.37 q |
| 6 | 6 | 714 | SUTER Joseph (I) | 1993 | M | USA UNITED STATES OF AMERICA | 46.11 q |
| 7 | 3 | 266 | REED William | 1993 | M | GBR GREAT BRITAIN & N.I. | 47.11 q |
| 8 | 5 | 77 | PAIS Hardi | 1996 | M | EST ESTONIA | 47.23 q |
| 9 | 3 | 475 | KRUPINSKI Pawel | 1987 | M | POL POLAND | 47.32 |
| 10 | 3 | 176 | HOLMES Mark | 1983 | M | GBR GREAT BRITAIN & N.I. | 47.80 |
| 11 | 6 | 510 | REGO Diogo | 1997 | M | POR PORTUGAL | 48.53 |
| 12 | 7 | 269 | ROBERTS William | 1999 | M | GBR GREAT BRITAIN & N.I. | 48.74 |
| 13 | 2 | 245 | PELLOW Leo | 2002 | M | GBR GREAT BRITAIN & N.I. | 50.56 |
| 14 | 2 | 368 | HOGG David | 2002 | M | IRL IRELAND | 51.77 |
| 15 | 1 | 279 | ROUYER-BROWN Stephane | 1997 | M | GBR GREAT BRITAIN & N.I. | 52.09 |
| 16 | 3 | 696 | DRUMRIGHT Luke (I) | 1998 | M | USA UNITED STATES OF AMERICA | 52.21 |
| 17 | 2 | 204 | LAKE William | 1997 | M | GBR GREAT BRITAIN & N.I. | 52.74 |
| 18 | 1 | 391 | TULLY Eoin | 2000 | M | IRL IRELAND | 52.88 |
| 19 | 7 | 188 | HUGHES Dylan | 2002 | M | GBR GREAT BRITAIN & N.I. | 54.45 |
| 20 | 8 | 682 | DONOVAN Glenn (I) | 1997 | M | USA UNITED STATES OF AMERICA | 55.06 |
| 21 | 6 | 637 | GUNGOR Serhat-emir | 2000 | M | TUR TURKEY | 55.18 |
| 22 | 4 | 648 | MENC Alperen | 2002 | M | TUR TURKEY | 55.60 |
| 23 | 5 | 238 | MCDONNELL Christopher | 1991 | M | GBR GREAT BRITAIN & N.I. | 55.70 |
| 24 | 1 | 198 | LACEY Zachary | 2000 | M | GBR GREAT BRITAIN & N.I. | 57.35 |
| 25 | 2 | 476 | MATUSIEWICZ Bartosz | 1998 | M | POL POLAND | 57.65 |
| 26 | 6 | 489 | MUSZYNSKI Jakub | 2003 | M | POL POLAND | 57.75 |
| 27 | 1 | 330 | ASHE Eoghan | 2003 | M | IRL IRELAND | 59.83 |
| 28 | 7 | 490 | SZYMICZEK Szymon | 2004 | M | POL POLAND | 1:00.94 |
| 29 | 7 | 32 | NIELSEN Oliver-roug | 1995 | M | DEN DENMARK | 1:01.85 |
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