EVENT 303 Mens 15 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 3 | 1 | Michael REEVE | 20 | S12 | Leic Peng | 1:06.74 |
| 4 | 2 | Jamie BLACK | 15 | | Team Mercia | 1:04.40 |
| 5 | 3 | Ross HILL | 15 | | Chase | 1:03.76 |
| 6 | 4 | Jacob HEYWORTH | 15 | | Northampton | 1:03.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 5 | Joseph GRAINGER | 15 | | Leic Peng | 1:03.70 |
| 2 | 6 | Joseph ROBERTSON | 15 | | Leic Peng | 1:03.56 |
| 3 | 7 | Bradley WILLSON | 16 | | Co Hereford | 1:03.21 |
| 4 | 8 | Adel ELFAKIR | 16 | | Northampton | 1:03.17 |
| 5 | 9 | Joshua HOLSEY | 16 | | Boldmere | 1:03.00 |
| 6 | 10 | Ho Lam LEUNG | 15 | | Warwick WP | 1:03.00 |
| 7 | 11 | Callum STRETTON | 15 | | Co Leicester | 1:03.00 |
| 8 | 12 | James MARSH | 16 | | Worcester | 1:02.66 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 13 | Elliot HUGHES | 16 | | Ellesmere Co | 1:02.60 |
| 2 | 14 | Jack SAMPSON | 16 | | Co Derby | 1:02.44 |
| 3 | 15 | William ADHEMAR | 15 | | Daventry | 1:02.30 |
| 4 | 16 | Joe LYNCH | 15 | | Leic Peng | 1:02.29 |
| 5 | 17 | Reiss SEYMOUR | 16 | | Chase | 1:02.20 |
| 6 | 18 | William SLAWSON | 15 | | Shrewsbury | 1:02.20 |
| 7 | 19 | Reiss HARRISON | 16 | | Bilston | 1:01.90 |
| 8 | 20 | Jack BREWER | 19 | | Leic Peng | 1:01.85 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 21 | William MCINTYRE | 15 | | Louth | 1:01.73 |
| 2 | 22 | Samuel HAMBRIDGE | 17 | | Team Mercia | 1:01.64 |
| 3 | 23 | Ryan CENDROWSKI | 17 | | Long Eaton | 1:01.63 |
| 4 | 24 | Jonty CARTWRIGHT | 18 | | Team Mercia | 1:01.61 |
| 5 | 25 | Luke WILKINS | 18 | | Co Coventry | 1:01.60 |
| 6 | 26 | Lukas WATSON | 15 | | Nova Cent'n | 1:01.53 |
| 7 | 27 | James BERESFORD-COOK | 19 | | Buxton | 1:01.49 |
| 8 | 28 | Thomas SPINK | 17 | | Co Derby | 1:01.29 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 29 | Mitchell JORDAN | 18 | | Arnold | 1:01.20 |
| 2 | 30 | Thomas HOWDLE | 15 | | Nova Cent'n | 1:01.10 |
| 3 | 31 | Adam-James LAMB | 16 | | Chase | 1:00.96 |
| 4 | 32 | Toby ROBINSON | 16 | | Wolv'hampton | 1:00.86 |
| 5 | 33 | Jacob JACKSON | 15 | | Ellesmere Co | 1:00.80 |
| 6 | 34 | Matthew BIRKS | 18 | | Cosacss | 1:00.77 |
| 7 | 35 | Oliver RICHMOND | 18 | | Lincoln Vulc | 1:00.65 |
| 8 | 36 | Jacob SCULLION | 17 | | Co Coventry | 1:00.60 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 37 | Lucas GREGORY | 16 | | Co Coventry | 1:00.40 |
| 2 | 38 | Thomas STOKES | 20 | | Ledbury | 1:00.38 |
| 3 | 39 | Daniel JOHN | 26 | | Leic Peng | 1:00.21 |
| 4 | 40 | Marcus WILLIAMSON | 17 | | Newcastle St | 59.80 |
| 5 | 41 | Joshua SULLIVAN | 18 | | Northampton | 59.70 |
| 6 | 42 | Callum HENLEY | 23 | | Long Eaton | 59.68 |
| 7 | 43 | James BURDEN | 21 | | Co Coventry | 59.62 |
| 8 | 44 | Kieran MCGINLEY | 17 | | Nova Cent'n | 59.20 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 45 | Luke MORRIS | 18 | | Halesowen | 59.06 |
| 2 | 46 | Jake SPICER | 16 | | Co Leicester | 59.00 |
| 3 | 47 | Josh BRADLEY | 19 | | Halesowen | 58.77 |
| 4 | 48 | James BULL | 16 | | Nova Cent'n | 58.60 |
| 5 | 49 | Oliver HEMPSALL | 18 | | Nova Cent'n | 58.20 |
| 6 | 50 | Ben ROBERTS | 15 | | Wolv'hampton | 58.10 |
| 7 | 51 | Patrick BLAKE | 20 | | Co Hereford | 58.08 |
| 8 | 52 | Callum NORTJE | 17 | | Ellesmere Co | 57.70 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 53 | Matthew HINCKS | 18 | | Co Leicester | 57.60 |
| 2 | 54 | Robin WILLIAMS | 23 | | Worcester | 56.81 |
| 3 | 55 | Jake DIXON | 15 | | Co Birm'ham | 56.30 |
| 4 | 56 | Luke HOWDLE | 18 | | Nova Cent'n | 56.10 |
| 5 | 57 | John LING | 20 | | Royal Wolv | 56.10 |
| 6 | 58 | Kevin WALLBANK | 17 | | Derventio | 55.80 |
| 7 | 59 | Kieran SMITH | 17 | | Co Birm'ham | 55.60 |
| 8 | 60 | Iain MACMILLAN | 27 | | Nova Cent'n | 54.40 |