| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 17.841 | 21/6:14.661 |
| 2 | 3 | 17.687 | 21/6:13.044 |
| 3 | 3 | 18.119 | 21/6:15.529 |
| 4 | 3 | 17.655 | 21/6:14.336 |
| 5 | 3 | 19.996 | 20/6:05.192 |
| 6 | 3 | 18.665 | 20/6:06.543 |
| 7 | 3 | 17.831 | 20/6:05.126 |
| 8 | 3 | 17.445 | 20/6:03.098 |
| 9 | 3 | 18.356 | 20/6:03.544 |
| 10 | 3 | 17.617 | 20/6:02.424 |
| 11 | 4 | 19.066 | 20/6:04.142 |
| 12 | 5 | 18.245 | 20/6:04.205 |
| 13 | 3 | 19.027 | 20/6:05.462 |
| 14 | 4 | 18.213 | 20/6:05.376 |
| 15 | 3 | 17.107 | 20/6:03.827 |
| 16 | 3 | 17.238 | 20/6:02.635 |
| 17 | 3 | 17.172 | 20/6:01.506 |
| 18 | 3 | 19.105 | 20/6:02.650 |
| 19 | 3 | 18.710 | 20/6:03.258 |
| 20 | 3 | 17.505 | 20/6:02.600 |