| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.622 | 21/6:10.062 |
| 2 | 2 | 17.749 | 21/6:11.395 |
| 3 | 2 | 18.866 | 20/6:01.580 |
| 4 | 2 | 17.950 | 20/6:00.935 |
| 5 | 2 | 17.728 | 21/6:17.643 |
| 6 | 2 | 18.093 | 20/6:00.027 |
| 7 | 2 | 17.388 | 21/6:16.188 |
| 8 | 2 | 17.559 | 21/6:15.257 |
| 9 | 3 | 19.904 | 20/6:01.909 |
| 10 | 3 | 18.215 | 20/6:02.148 |
| 11 | 3 | 22.104 | 20/6:09.415 |
| 12 | 3 | 18.118 | 20/6:08.827 |
| 13 | 4 | 21.749 | 20/6:13.915 |
| 14 | 4 | 17.580 | 20/6:12.321 |
| 15 | 3 | 19.829 | 20/6:13.939 |
| 16 | 3 | 17.819 | 20/6:12.841 |
| 17 | 4 | 18.150 | 20/6:12.262 |
| 18 | 3 | 17.423 | 20/6:10.940 |
| 19 | 3 | 17.889 | 20/6:10.247 |
| 20 | 3 | 18.087 | 20/6:09.822 |