| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.072 | 20/6:01.440 |
| 2 | 3 | 17.972 | 20/6:00.440 |
| 3 | 4 | 18.302 | 20/6:02.307 |
| 4 | 4 | 17.955 | 20/6:01.505 |
| 5 | 4 | 18.452 | 20/6:03.012 |
| 6 | 4 | 18.302 | 20/6:03.517 |
| 7 | 4 | 17.713 | 20/6:02.194 |
| 8 | 4 | 17.882 | 20/6:01.625 |
| 9 | 4 | 18.875 | 20/6:03.389 |
| 10 | 4 | 18.261 | 20/6:03.572 |
| 11 | 4 | 17.627 | 20/6:02.569 |
| 12 | 4 | 18.609 | 20/6:03.370 |
| 13 | 4 | 18.303 | 20/6:03.577 |
| 14 | 4 | 19.202 | 20/6:05.039 |
| 15 | 4 | 18.088 | 20/6:04.820 |
| 16 | 4 | 17.852 | 20/6:04.334 |
| 17 | 4 | 17.984 | 20/6:04.060 |
| 18 | 4 | 18.741 | 20/6:04.658 |
| 19 | 4 | 17.675 | 20/6:04.071 |
| 20 | 4 | 18.453 | 20/6:04.320 |