EVENT 211 Women 16 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Meg Fisher | 18 | | Wellingboro | 1:28.32 |
| 2 | 7 | Summer York | 17 | | Corby | 1:14.30 |
| 3 | 13 | Kalinika Cwiklinska | 16 | | Northampton | 1:10.90 |
| 4 | 19 | Lilly Tappern | 16 | | Corby | 1:07.57 |
| 5 | 16 | Elise Sophia Kendall | 17 | | Corby | 1:09.15 |
| 6 | 10 | Emilia Cieszczyk | 16 | | Northampton | 1:13.00 |
| 7 | 4 | Lucy Dando | 17 | | Corby | 1:21.21 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 2 | Ashley Jones | 17 | | Wellingboro | 1:24.44 |
| 2 | 8 | Izzy Bach | 17 | | Kettering | 1:13.80 |
| 3 | 14 | Lea Bromwich | 17 | | Corby | 1:10.73 |
| 4 | 20 | Mia Matthews | 16 | | Northampton | 1:06.90 |
| 5 | 17 | Isabel Sharp | 17 | | Northampton | 1:07.97 |
| 6 | 11 | Orla Eyton-Jones | 17 | | Corby | 1:12.90 |
| 7 | 5 | Magenta Kenyon | 18 | | Kettering | 1:17.35 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 3 | Amber Haycock | 16 | S10 | Rushden | 1:21.82 |
| 2 | 9 | Emily Batchelor | 16 | | Kettering | 1:13.66 |
| 3 | 15 | Arabella Scotney | 18 | | Rushden | 1:10.51 |
| 4 | 21 | Lily Freeman | 16 | | Northampton | 1:06.70 |
| 5 | 18 | Harriet Casey | 17 | | Corby | 1:07.82 |
| 6 | 12 | Grace Wingham | 16 | | Kettering | 1:11.07 |
| 7 | 6 | Emma McLean | 16 | | Rushden | 1:14.98 |