| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 18.144 | 20/6:02.880 |
| 2 | 3 | 18.549 | 20/6:06.930 |
| 3 | 4 | 19.209 | 20/6:12.680 |
| 4 | 3 | 18.113 | 20/6:10.075 |
| 5 | 3 | 19.617 | 20/6:14.528 |
| 6 | 3 | 19.190 | 20/6:16.073 |
| 7 | 3 | 18.487 | 20/6:15.169 |
| 8 | 3 | 18.728 | 20/6:15.093 |
| 9 | 3 | 18.934 | 20/6:15.491 |
| 10 | 3 | 18.365 | 20/6:14.672 |
| 11 | 3 | 19.436 | 20/6:15.949 |
| 12 | 3 | 18.523 | 20/6:15.492 |
| 13 | 3 | 18.917 | 20/6:15.711 |
| 14 | 4 | 18.132 | 20/6:14.777 |
| 15 | 4 | 18.515 | 20/6:14.479 |
| 16 | 4 | 22.961 | 19/6:00.786 |
| 17 | 4 | 18.473 | 19/6:00.210 |
| 18 | 4 | 18.294 | 20/6:18.430 |
| 19 | 4 | 18.622 | 20/6:18.115 |
| 20 | 4 | 18.626 | 20/6:17.835 |