| B Final | ||||||
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 1 | Katarina Roxon | 93 | SB8 | Canada | 1:24.24 |
| 1 | 2 | Reagan Doig | 98 | SB14 | Perth City | 1:23.90 |
| 2 | 3 | Chloe Buck | 97 | SB8 | Harrogate | 1:25.84 |
| 3 | 4 | Elena Krawzow | 93 | SB13 | Germany | 1:22.35 |
| 4 | 5 | Emely Telle | 97 | SB12 | Germany | 1:24.67 |
| 5 | 6 | Pernilla Lindberg | 94 | SB14 | Sweden | 1:23.51 |
| 6 | 7 | Charlotte Hartin | 95 | SB14 | Basildon Ph | 1:25.54 |
| 7 | 8 | Ellen Keane | 95 | SB8 | Ireland | 1:24.42 |
| 8 | 9 | Rebecca Redfern | 99 | SB13 | Worcester | 1:21.05 |
| 9 | 10 | Elizabeth Johnson | 85 | SB6 | Co Manch Aq | 1:44.79 |