| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 22.190 | 19/7:01.610 |
| 2 | 2 | 22.761 | 19/7:07.034 |
| 3 | 2 | 23.240 | 19/7:11.876 |
| 4 | 2 | 22.308 | 19/7:09.870 |
| 5 | 2 | 21.620 | 19/7:06.052 |
| 6 | 2 | 21.287 | 19/7:02.452 |
| 7 | 2 | 21.125 | 20/7:21.517 |
| 8 | 2 | 20.912 | 20/7:18.608 |
| 9 | 2 | 20.816 | 20/7:16.131 |
| 10 | 2 | 20.917 | 20/7:14.352 |
| 11 | 2 | 20.923 | 20/7:12.907 |
| 12 | 2 | 22.476 | 20/7:14.292 |
| 13 | 2 | 20.871 | 20/7:12.994 |
| 14 | 2 | 20.589 | 20/7:11.479 |
| 15 | 2 | 20.970 | 20/7:10.673 |
| 16 | 2 | 20.710 | 20/7:09.644 |
| 17 | 2 | 21.773 | 20/7:09.986 |
| 18 | 2 | 21.193 | 20/7:09.646 |
| 19 | 2 | 21.823 | 20/7:10.004 |
| 20 | 2 | 24.011 | 20/7:12.515 |