EVENT 317 Mens 50m Butterfly - Heats
Not Competing : 13,21,23,32,40,43,49,56,58,63,65,66,74,75,76,79,80,82
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 2 | Graham SHAW | 15 | March | 29.98 |
| 2 | 4 | Thomas GRIEVE | 15 | Colchester | 29.89 |
| 3 | 6 | Harry CONSTANTINE | 15 | Hatfield | 29.80 |
| 4 | 8 | James BLOUNT | 15 | Potters Bar | 29.61 |
| 5 | 7 | Samuel BARELLA | 15 | Thurrock | 29.65 |
| 6 | 5 | Harry WHITEMAN | 15 | Co Peterboro | 29.81 |
| 7 | 3 | Adam MARTIN | 15 | Hertsmere | 29.96 |
| 8 | 1 | William CHARLES | 15 | Hertford | 30.04 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Max WILSON | 15 | Modernians | 29.40 |
| 2 | 12 | Christian NEL | 15 | Berkhamsted | 29.22 |
| 3 | 15 | Benjamin PERKINS | 16 | UEA Norwich | 28.80 |
| 4 | 17 | Dylan NUTT | 16 | Braintree | 28.75 |
| 5 | 16 | Harry JONES | 15 | Hitchin | 28.79 |
| 6 | 14 | Samuel COTTEE | 15 | teamipswich | 28.85 |
| 7 | 11 | Matthew BENTLEY | 15 | Hatfield | 29.30 |
| 8 | 9 | Ryan MOGFORD | 15 | Chelmsford | 29.51 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 19 | Alex EVENS | 16 | Hitchin | 28.69 |
| 2 | 22 | David SHIPMAN | 15 | Potters Bar | 28.59 |
| 3 | 25 | James WOODWARD | 15 | Potters Bar | 28.47 |
| 4 | 27 | Louis SPONG | 16 | DunmowAtlant | 28.38 |
| 5 | 26 | Harvey JOLLY | 15 | Basildon Ph | 28.45 |
| 6 | 24 | Patrick KEAVENEY | 15 | Modernians | 28.50 |
| 7 | 20 | Aaron HIRD | 16 | Team Luton | 28.61 |
| 8 | 18 | Ole MILLS | 16 | Braintree | 28.74 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 29 | Jack SPAIN | 15 | Stowmarket | 28.32 |
| 2 | 31 | Oliver FITT | 16 | St Ives | 28.28 |
| 3 | 34 | Luke SUGDEN | 16 | Hatfield | 28.10 |
| 4 | 36 | Bradley VEITCH | 16 | Harlow Pen | 27.97 |
| 5 | 35 | Ryan SMITH | 15 | UEA Norwich | 28.10 |
| 6 | 33 | Ignacio LARGHERO | 16 | Newmarket | 28.13 |
| 7 | 30 | Callum DAVIS | 15 | Bishop Stort | 28.30 |
| 8 | 28 | Ben HARRISON | 15 | Potters Bar | 28.37 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 38 | Jack WEARS | 16 | Leighton Buz | 27.90 |
| 2 | 41 | Benjamin GARRATT | 15 | Hatfield | 27.70 |
| 3 | 44 | Ashley HOLNESS-WRIGHT | 19 | Watford SC | 27.45 |
| 4 | 46 | Alex PROFFITT | 17 | West Suffolk | 27.30 |
| 5 | 45 | Daniel LEIGH | 16 | Co Peterboro | 27.33 |
| 6 | 42 | Ben RANSOME | 17 | Hertford | 27.55 |
| 7 | 39 | Jakob GOODMAN | 15 | St Felix Sch | 27.78 |
| 8 | 37 | Zack CAMPBELL-MAUGHAN | 16 | West Norfolk | 27.90 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 51 | Nathan HUGHES | 15 | Hatfield | 27.20 |
| 2 | 59 | Frederick WOODCOCK | 19 | Hemel Hemp | 26.83 |
| 3 | 68 | Cameron MANLEY | 16 | Linslade | 26.30 |
| 4 | 77 | Harry PARKER | 17 | Hatfield | 25.80 |
| 5 | 71 | Harry WEARS | 18 | Leighton Buz | 26.20 |
| 6 | 62 | Hugo JOHNSON | 17 | Bo Southend | 26.72 |
| 7 | 54 | Joshua GRAVES | 18 | Co Peterboro | 27.10 |
| 8 | 47 | John CUNNINGHAM | 45 | Potters Bar | 27.30 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 52 | Christopher MURPHY | 19 | Modernians | 27.20 |
| 2 | 60 | Maximilian STEFANIK | 17 | Mid Beds | 26.80 |
| 3 | 69 | Mason ARNOLD | 18 | Harlow Pen | 26.28 |
| 4 | 78 | Conor HARROLD | 22 | Basildon Ph | 25.76 |
| 5 | 72 | William KEARSEY | 18 | Hatfield | 26.13 |
| 6 | 64 | Justin LANGFORD | 25 | Hemel Hemp | 26.54 |
| 7 | 55 | Thomas SHERRIFF | 20 | Hemel Hemp | 27.04 |
| 8 | 48 | Nathan WELLS | 17 | West Norfolk | 27.29 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 53 | Stuart CLARKE | 31 | Bishop Stort | 27.20 |
| 2 | 61 | George BORTHWICK | 18 | Flitwick | 26.80 |
| 3 | 70 | Jamie MCLAUGHLIN | 18 | Harlow Pen | 26.24 |
| 4 | 81 | Oliver MALTBY | 18 | Modernians | 25.28 |
| 5 | 73 | George EPSLY | 17 | Basildon Ph | 26.05 |
| 6 | 67 | Modestas MOCKEVICIUS | 18 | Bo Southend | 26.32 |
| 7 | 57 | Jake LLOYD | 20 | Bishop Stort | 26.91 |
| 8 | 50 | Jordan BATSON | 19 | Putteridge | 27.21 |