| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 18.289 | 20/6:05.780 |
| 2 | 4 | 18.020 | 20/6:03.090 |
| 3 | 3 | 17.790 | 20/6:00.660 |
| 4 | 3 | 17.293 | 21/6:14.808 |
| 5 | 3 | 17.917 | 21/6:15.098 |
| 6 | 3 | 17.994 | 21/6:15.560 |
| 7 | 3 | 18.852 | 20/6:00.443 |
| 8 | 3 | 18.448 | 20/6:01.508 |
| 9 | 3 | 17.661 | 20/6:00.587 |
| 10 | 3 | 18.151 | 20/6:00.830 |
| 11 | 3 | 18.129 | 20/6:00.989 |
| 12 | 3 | 18.129 | 20/6:01.122 |
| 13 | 3 | 18.210 | 20/6:01.358 |
| 14 | 3 | 18.444 | 20/6:01.896 |
| 15 | 3 | 17.873 | 20/6:01.600 |
| 16 | 3 | 18.496 | 20/6:02.120 |
| 17 | 3 | 17.706 | 20/6:01.649 |
| 18 | 3 | 19.167 | 20/6:02.854 |
| 19 | 3 | 18.043 | 20/6:02.749 |
| 20 | 3 | 17.703 | 20/6:02.315 |