| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 18.271 | 20/6:05.420 |
| 2 | 3 | 18.793 | 20/6:10.640 |
| 3 | 3 | 19.423 | 20/6:16.580 |
| 4 | 3 | 18.543 | 20/6:15.150 |
| 5 | 3 | 19.652 | 20/6:18.728 |
| 6 | 3 | 19.819 | 19/6:02.587 |
| 7 | 3 | 18.235 | 19/6:00.283 |
| 8 | 3 | 18.551 | 20/6:18.217 |
| 9 | 3 | 18.155 | 20/6:16.538 |
| 10 | 3 | 18.285 | 20/6:15.454 |
| 11 | 3 | 17.764 | 20/6:13.620 |
| 12 | 3 | 18.578 | 20/6:13.448 |
| 13 | 3 | 17.737 | 20/6:12.009 |
| 14 | 3 | 18.237 | 20/6:11.490 |
| 15 | 3 | 18.063 | 20/6:10.808 |
| 16 | 3 | 18.371 | 20/6:10.596 |
| 17 | 3 | 17.623 | 20/6:09.529 |
| 18 | 3 | 18.300 | 20/6:09.333 |
| 19 | 3 | 19.483 | 20/6:10.403 |
| 20 | 3 | 18.107 | 20/6:09.990 |