1500m Men Nat heats, Heat:1 of 4 ; Official result since 15:12
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 9 | 195 | BALHAN PIERRE-ANTOINE | RESC | Sen | 3:47.30 | |||
| 2 | 18 | 200 | DE KERPEL KEVIN | ROBA | Sen | 3:48.35 | |||
| 3 | 2 | 197 | CELIS JULIEN | HF | Sen | 3:48.83 | |||
| 4 | 11 | 213 | WALLDEN JOHAN | SWE | Sen | 3:48.95 | |||
| 5 | 6 | 208 | SCHOUTEN MENNO | NED | Sen | 3:49.94 | |||
| 6 | 10 | 207 | REINTJES DAAN | NED | Sen | 3:50.17 | |||
| 7 | 19 | 212 | VANOPPEN THOMAS | ACHL | Jun | 3:50.83 | |||
| 8 | 13 | 205 | MISPLON BERT | RCG | Sen | 3:51.73 | |||
| 9 | 16 | 203 | GOETHALS BENOÎT | ACBR | Sen | 3:53.02 | |||
| 10 | 15 | 201 | DUCHATEAU JULIEN | FRA | Sen | 3:55.10 | |||
| 11 | 12 | 199 | DE GELDER TOM | NED | Sen | 3:55.40 | |||
| 12 | 7 | 211 | VAN RIEL RICK | NED | Sen | 3:55.85 | |||
| 13 | 8 | 202 | FINTOLINI DORIAN | RFCL | Sen | 3:56.05 | |||
| 14 | 5 | 214 | WEISSER PATRICK | GER | Sen | 3:56.78 | |||
| 15 | 1 | 206 | PETITJEAN SIMON | RESC | Sen | 3:57.17 | |||
| 16 | 4 | 209 | UMETANI KENTA | JPN | Sen | 3:59.23 | |||
| 17 | 3 | 752 | CHESSER KEVIN | IRL | Sen | 4:00.49 | |||
| 18 | 14 | 198 | CONVENTS TIMOTHY | ROBA | Sen | 4:00.59 | |||
| 20 | 204 | HOUBEN THYMON | NED | Sen | DNF | ||||
| 17 | 196 | BOLLEROD MOA ABOUNNACHAT | NOR | Sch | DNS |