| Lap | Position | Time | Pace |
|---|---|---|---|
| 1 | 2 | 19.787 | N/A |
| 2 | 2 | 18.271 | 20/6:06.936 |
| 3 | 2 | 19.994 | 19/6:04.172 |
| 4 | 2 | 18.462 | 19/6:00.149 |
| 5 | 2 | 18.872 | 20/6:18.882 |
| 6 | 2 | 19.492 | 19/6:02.114 |
| 7 | 2 | 18.499 | 19/6:00.557 |
| 8 | 2 | 18.132 | 20/6:17.318 |
| 9 | 2 | 18.136 | 20/6:15.699 |
| 10 | 2 | 18.363 | 20/6:14.920 |
| 11 | 1 | 18.416 | 20/6:14.397 |
| 12 | 1 | 18.065 | 20/6:13.363 |
| 13 | 1 | 18.301 | 20/6:12.875 |
| 14 | 1 | 18.473 | 20/6:12.713 |
| 15 | 1 | 18.192 | 20/6:12.193 |
| 16 | 1 | 17.750 | 20/6:11.183 |
| 17 | 1 | 19.394 | 20/6:12.251 |
| 18 | 1 | 19.314 | 20/6:13.104 |
| 19 | 1 | 18.588 | 20/6:13.096 |
| 20 | 1 | 19.112 | 20/6:13.613 |