| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 4 | 18.948 | 19/6:00.012 |
| 2 | 4 | 18.767 | 20/6:17.150 |
| 3 | 3 | 18.312 | 20/6:13.513 |
| 4 | 2 | 18.426 | 20/6:12.265 |
| 5 | 2 | 19.008 | 20/6:13.844 |
| 6 | 2 | 18.441 | 20/6:13.007 |
| 7 | 2 | 18.470 | 20/6:12.491 |
| 8 | 2 | 21.617 | 19/6:00.974 |
| 9 | 2 | 18.838 | 19/6:00.635 |
| 10 | 2 | 18.978 | 19/6:00.630 |
| 11 | 2 | 18.467 | 20/6:18.676 |
| 12 | 3 | 19.556 | 19/6:00.728 |
| 13 | 3 | 18.751 | 19/6:00.385 |
| 14 | 3 | 18.930 | 19/6:00.334 |
| 15 | 3 | 18.969 | 19/6:00.339 |
| 16 | 3 | 21.234 | 19/6:03.033 |
| 17 | 3 | 19.047 | 19/6:02.966 |
| 18 | 3 | 19.221 | 19/6:03.090 |
| 19 | 4 | 25.346 | 19/6:09.326 |