| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 18.123 | 20/6:02.460 |
| 2 | 3 | 18.822 | 20/6:09.450 |
| 3 | 3 | 17.787 | 20/6:04.880 |
| 4 | 3 | 17.744 | 20/6:02.380 |
| 5 | 3 | 18.328 | 20/6:03.216 |
| 6 | 4 | 17.900 | 20/6:02.347 |
| 7 | 4 | 18.455 | 20/6:03.311 |
| 8 | 4 | 17.890 | 20/6:02.623 |
| 9 | 4 | 18.691 | 20/6:03.867 |
| 10 | 4 | 19.869 | 20/6:07.218 |
| 11 | 4 | 17.719 | 20/6:06.051 |
| 12 | 4 | 17.617 | 20/6:04.908 |
| 13 | 3 | 18.602 | 20/6:05.457 |
| 14 | 3 | 17.728 | 20/6:04.679 |
| 15 | 3 | 18.028 | 20/6:04.404 |
| 16 | 3 | 17.980 | 20/6:04.104 |
| 17 | 3 | 18.050 | 20/6:03.921 |
| 18 | 3 | 17.871 | 20/6:03.560 |
| 19 | 3 | 17.678 | 20/6:03.034 |
| 20 | 3 | 18.475 | 20/6:03.357 |