EVENT 204 Mixed 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Sian Davies | 32 | Leicester Ma | 1:43.57 |
| 4 | 4 | Nick Minns | 71 | Co Lincoln P | 1:39.84 |
| 5 | 3 | Lynne Dawson | 57 | Chapeltown | DN:C . |
| 6 | 1 | Pamela Lane | 62 | TransplantSC | 2:06.51 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Joseph Winterbottom | 35 | Buxton | 1:29.02 |
| 2 | 8 | Joanna Schirmer | 41 | Biddulph | 1:22.87 |
| 3 | 10 | Laura Davies | 41 | Swadlincote | 1:25.28 |
| 4 | 12 | Charlotte Bentley | 26 | Derby Excel | 1:19.41 |
| 5 | 11 | Verity McWee | 31 | Buxton | 1:21.52 |
| 6 | 9 | Judith Pearson | 64 | Carlisle Aq | 1:24.18 |
| 7 | 7 | Sam Bradley | 31 | Team Luton | 1:25.96 |
| 8 | 5 | Lois Webb | 19 | Leic Peng | 1:30.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Joshua Bestwick | 24 | DerbyPhoenix | 1:13.93 |
| 2 | 16 | Maddie Haywood | 24 | Long Eaton | 1:15.54 |
| 3 | 18 | Louisa Zolkiewski | 31 | Trafford Met | 1:12.56 |
| 4 | 20 | Ben Felton | 37 | NottmLeander | 1:06.75 |
| 5 | 19 | Hadden Smith | 21 | Eckington | 1:08.60 |
| 6 | 17 | Wade Rimbach | 40 | Otter | DN:C . |
| 7 | 15 | Matthew Sanders | 27 | Derby Excel | 1:14.34 |
| 8 | 13 | Elliot Bestwick | 23 | Ilkeston | 1:19.24 |