EVENT 508 Mens Open 100m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Alexander FLORANCE | 19 | West Norfolk | 1:04.99 |
| 4 | 3 | James SPEERS | 16 | Basildon Ph | 1:04.81 |
| 5 | 2 | Matthew DEBENHAM | 15 | teamipswich | 1:04.83 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 4 | Thomas STANBURY | 18 | Potters Bar | 1:04.81 |
| 2 | 6 | Charlie BARRETT | 18 | Co Norwich | 1:04.76 |
| 3 | 8 | Mattias MORSE | 16 | Hemel Hemp | 1:04.36 |
| 4 | 10 | D THURSTON-WOOLNOUGH | 18 | Beccles Town | 1:04.11 |
| 5 | 9 | Joshua BRIDGELAND | 16 | Hatfield | 1:04.19 |
| 6 | 7 | Marcus KEMP | 18 | Watford SC | 1:04.67 |
| 7 | 5 | J THURSTON-WOOLNOUGH | 16 | Beccles Town | 1:04.79 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 12 | William HANDLEY | 17 | Stowmarket | 1:03.78 |
| 2 | 14 | Oliver CASHIN | 17 | Co Cambridge | 1:03.52 |
| 3 | 16 | Thomas HAMILTON | 18 | Royston | 1:03.46 |
| 4 | 18 | Myles ROBINSON-YOUNG | 17 | Co Peterboro | 1:03.22 |
| 5 | 17 | Ryan WEBB | 18 | Gt Yarmouth | 1:03.35 |
| 6 | 15 | Morgan FOSTER | 16 | Braintree | 1:03.47 |
| 7 | 13 | Joseph COLDWELL | 17 | Watford SC | 1:03.71 |
| 8 | 11 | Matthew ANDERSON | 17 | Deben | 1:04.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 20 | Ashley COOMBS | 18 | Hemel Hemp | 1:03.09 |
| 2 | 22 | Lewis CHAPMAN | 18 | Stowmarket | 1:02.95 |
| 3 | 24 | Joseph WELLS | 20 | West Norfolk | 1:02.73 |
| 4 | 26 | Jack TURRELL | 16 | Basildon Ph | 1:02.65 |
| 5 | 25 | Jack SANGSTER | 18 | Modernian | 1:02.69 |
| 6 | 23 | Matthew ROTHWELL | 17 | Co Peterboro | 1:02.84 |
| 7 | 21 | Charles RENNIE | 18 | Braintree | 1:03.07 |
| 8 | 19 | Freddie LAWS | 16 | West Norfolk | 1:03.22 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 30 | Elliot COOK | 25 | teamipswich | 1:02.29 |
| 2 | 36 | Ralph MUNCER | 18 | Co St Albans | 1:01.42 |
| 3 | 42 | Thomas GRIEVE | 19 | Co Cambridge | 1:00.40 |
| 4 | 48 | Nathan WELLS | 21 | West Norfolk | 57.69 |
| 5 | 45 | Harry WEARS | 22 | Putteridge | 1:00.09 |
| 6 | 39 | Alex LEZARD | 20 | Co Cambridge | 1:00.78 |
| 7 | 33 | Thomas OGDEN | 15 | Bishop Stort | 1:01.68 |
| 8 | 27 | Yannik WILSON | 17 | Co St Albans | 1:02.62 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 31 | Lewis SHAYLER | 16 | Watford SC | 1:02.11 |
| 2 | 37 | Maxim DE WILDT | 18 | Co Cambridge | 1:01.28 |
| 3 | 43 | Sam PERKINS | 17 | teamipswich | 1:00.39 |
| 4 | 49 | James WOODWARD | 19 | Hatfield | 56.43 |
| 5 | 46 | Robert LANCASTER | 22 | teamipswich | 59.87 |
| 6 | 40 | Luke BRYAN | 19 | West Norfolk | 1:00.65 |
| 7 | 34 | Walter HACKETT | 16 | Dunstable | 1:01.67 |
| 8 | 28 | Samuel ROSE | 16 | St Felix Sch | 1:02.41 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 32 | Benjamin GREEN | 15 | Watford SC | 1:01.91 |
| 2 | 38 | Joshua FOWLES | 20 | Witham Dolph | 1:00.90 |
| 3 | 44 | Nathan WOODROW | 16 | Co Norwich | 1:00.16 |
| 4 | 50 | Brandon NABARRO | 22 | Putteridge | 56.27 |
| 5 | 47 | Charles WHYTE | 18 | West Suffolk | 58.85 |
| 6 | 41 | Oliver KENNY | 22 | West Norfolk | 1:00.54 |
| 7 | 35 | Finn JEFFERY | 16 | St Felix Sch | 1:01.45 |
| 8 | 29 | Callum DAVIS | 19 | Bishop Stort | 1:02.41 |