| # | Name | Time | Performance | Date |
|---|---|---|---|---|
| 271 | 00:47.17 | 2017-06-27 | ||
| 272 | 00:47.21 | 2016-05-31 | ||
| 273 | 00:47.35 | 2016-07-17 | ||
| 274 | 00:48.36 | 2014-09-02 | ||
| 275 | 00:48.60 | 2013-10-25 | ||
| 276 | 00:48.61 | 2013-09-27 | ||
| 277 | 00:48.80 | 2017-08-06 | ||
| 278 | 00:48.98 | 2016-05-06 | ||
| 279 | 00:49.15 | 2016-07-22 | ||
| 280 | 00:49.46 | 2016-07-20 | ||
| 281 | 00:49.67 | 2014-05-24 | ||
| 282 | 00:51.62 | 2015-07-29 | ||
| 283 | 00:52.71 | 2013-10-08 | ||
| 284 | 00:53.99 | 2014-08-12 | ||
| 285 | 00:55.09 | 2014-02-25 | ||
| 271–285 / 305 | ||||