| Pos | Rank | Heat | Bib | Athlete | Mark | Details | |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1076 | KEN | 14:45.59  | Q | |
| 2 | 2 | 1 | 972 | ITA | 14:46.36  | Q | |
| 3 | 3 | 1 | 1407 | USA | 14:46.52  | Q | |
| 4 | 4 | 1 | 1145 | NED | 14:46.57  | Q | |
| 5 | 5 | 1 | 1067 | JPN | 14:47.14  | Q | |
| 6 | 6 | 1 | 782 | ETH | 14:47.46  | Q | |
| 7 | 7 | 1 | 873 | GBR | 14:48.09  | Q | |
| 8 | 8 | 1 | 1356 | UGA | 14:51.17  | Q | |
| 9 | 9 | 1 | 789 | ETH | 14:53.49  | ||
| 10 | 1 | 2 | 796 | ETH | 14:56.46  | Q | |
| 11 | 2 | 2 | 1088 | KEN | 14:56.71 SB | Q | |
| 12 | 3 | 2 | 521 | AUS | 14:56.83  | Q | |
| 13 | 4 | 2 | 757 | ESP | 14:56.96  | Q | |
| 14 | 5 | 2 | 785 | ETH | 14:57.03  | Q | |
| 15 | 6 | 2 | 1374 | USA | 14:57.59  | Q | |
| 16 | 7 | 2 | 527 | AUS | 14:57.80  | Q | |
| 17 | 8 | 2 | 1094 | KEN | 14:57.90  | Q | |
| 18 | 10 | 1 | 1388 | USA | 15:00.23 SB | ||
| 19 | 11 | 1 | 583 | BEL | 15:00.52  | ||
| 20 | 9 | 2 | 737 | DJI | 15:00.95  | ||
| 21 | 12 | 1 | 621 | CAN | 15:04.30  | ||
| 22 | 10 | 2 | 1323 | SWE | 15:05.13  | ||
| 23 | 11 | 2 | 915 | GER | 15:05.86  | ||
| 24 | 13 | 1 | 664 | CHN | 15:06.01 PB | ||
| 25 | 12 | 2 | 982 | ITA | 15:08.48 SB | ||
| 26 | 13 | 2 | 1050 | JPN | 15:10.68  | ||
| 27 | 14 | 1 | 1074 | KEN | 15:10.91  | ||
| 28 | 15 | 1 | 770 | ESP | 15:11.16  | ||
| 29 | 14 | 2 | 647 | CAN | 15:12.30  | ||
| 30 | 15 | 2 | 1156 | NED | 15:12.57  | ||
| 31 | 16 | 2 | 993 | ITA | 15:14.66  | ||
| 32 | 17 | 2 | 581 | BEL | 15:14.93  | ||
| 33 | 18 | 2 | 858 | GBR | 15:15.83  | ||
| 34 | 16 | 1 | 855 | GBR | 15:27.70  | ||
| 35 | 19 | 2 | 714 | CUB | 15:31.35 NR | ||
| 36 | 17 | 1 | 525 | AUS | 15:33.15  | ||
| 37 | 18 | 1 | 1071 | JPN | 15:36.29  | ||
| 38 | 19 | 1 | 887 | GER | 15:37.33  | ||
| 39 | 20 | 2 | 1238 | POR | 15:39.61  | ||
| 40 | 20 | 1 | 507 | ART | 16:27.35  |