| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 3 | 21.478 | 20/7:09.560 |
| 2 | 3 | 22.026 | 20/7:15.040 |
| 3 | 3 | 21.360 | 20/7:12.427 |
| 4 | 3 | 20.439 | 20/7:06.515 |
| 5 | 3 | 20.767 | 20/7:04.280 |
| 6 | 3 | 20.451 | 20/7:01.737 |
| 7 | 3 | 21.274 | 20/7:02.271 |
| 8 | 3 | 19.967 | 21/7:20.375 |
| 9 | 3 | 21.088 | 21/7:20.650 |
| 10 | 3 | 22.849 | 20/7:03.398 |
| 11 | 3 | 22.063 | 20/7:05.022 |
| 12 | 4 | 22.702 | 20/7:07.440 |
| 13 | 4 | 21.132 | 20/7:07.071 |
| 14 | 4 | 21.144 | 20/7:06.771 |
| 15 | 4 | 30.230 | 20/7:18.627 |
| 16 | 4 | 20.627 | 20/7:16.996 |
| 17 | 4 | 21.177 | 20/7:16.205 |
| 18 | 4 | 22.024 | 20/7:16.442 |
| 19 | 4 | 20.556 | 20/7:15.109 |
| 20 | 4 | 20.433 | 20/7:13.787 |