EVENT 206 Men Open 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 2 | 1 | Kieran WILLIAMS | 04 | SB9 | GBR - NEQW | |
| 3 | 2 | Kirill PULVER | 03 | SB4 | Russia | |
| 4 | 3 | Sergio VAQUERO AJENJO | 99 | SB9 | Spain | |
| 5 | 4 | Hjortur INGVARSSON | 95 | SB4 | Iceland | |
| 6 | 5 | Joe FIELD | 08 | SB5 | RichmondDale | 2:04.64 |
| 7 | 6 | Sam DOWNIE | 06 | SB7 | GBR - UELX | 2:04.55 |
| 8 | 47 | Alexandros MICHAELIDES | 94 | SB4 | Cyprus | 9.:0..0 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 7 | Theo WOODEN | 09 | SB8 | Crawley | 1:58.75 |
| 1 | 8 | Bjorn AAEN | 07 | SB9 | Hamilton | 1:51.57 |
| 2 | 9 | Sebastian WILLIAMS | 04 | SB6 | Mt Kelly | 1:44.10 |
| 3 | 10 | Archie HARE | 08 | SB11 | RichmondDale | 1:43.33 |
| 4 | 11 | Bruce DEE | 06 | SB6 | Northampton | 1:43.15 |
| 5 | 12 | Noah BURDEN | 08 | SB9 | Satellite | 1:41.96 |
| 6 | 13 | Kian SAVILLE | 00 | SB9 | Daventry | 1:41.32 |
| 7 | 14 | Jake WOODS | 92 | SB8 | Co Glasgow | 1:40.90 |
| 8 | 15 | Aidan STANBROOK | 07 | SB9 | Winchester | 1:39.31 |
| 9 | 16 | Alfie PENFOLD | 03 | SB13 | GBR - CRWS | 1:38.99 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 17 | Zack STURGESS | 07 | SB9 | S Bournem'th | 1:36.06 |
| 1 | 18 | Benny ROMBERG | 06 | SB9 | Kingston Roy | 1:35.76 |
| 2 | 19 | Leo MCCREA | 03 | SB6 | Switzerland | 1:33.86 |
| 3 | 20 | Lewis JONES | 06 | SB8 | Littleh'pton | 1:33.65 |
| 4 | 21 | Jason COBB | 01 | SB14 | Bucksburn | 1:31.84 |
| 5 | 22 | Owen JOHNSON | 08 | SB9 | Repton Swim | 1:31.50 |
| 6 | 23 | Luke BATTY | 05 | SB9 | GBR - BTMN | 1:31.24 |
| 7 | 24 | Jacob WOOD | 06 | SB8 | Gloucester | 1:30.61 |
| 8 | 25 | William PERRY | 00 | SB6 | GBR - NHNA | 1:30.44 |
| 9 | 26 | Andrew BEHARIE | 03 | SB14 | Blyth | 1:26.57 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 27 | Justin KAPS | 01 | SB9 | Germany | 1:25.55 |
| 1 | 28 | Laurin Matti WALTHER | 03 | SB8 | Germany | 1:25.29 |
| 2 | 29 | Luke BOYLES | 04 | SB12 | Bourmth Coll | 1:25.28 |
| 3 | 30 | Matthew DAVIES | 04 | SB9 | RomseyTotton | 1:23.79 |
| 4 | 31 | Caleb ARNDT | 02 | SB13 | Canada | 1:21.27 |
| 5 | 32 | Joseph GREAVES | 03 | SB14 | Littleh'pton | 1:20.44 |
| 6 | 33 | Ryan CROUCH | 94 | SB9 | teamipswich | 1:20.33 |
| 7 | 34 | Jan SCHREIBER | 01 | SB9 | Germany | 1:15.61 |
| 8 | 35 | Benjamin GRAINGER | 03 | SB9 | GBR - PEEN | 1:14.80 |
| 9 | 36 | Owen GARSIDES | 01 | SB14 | KingstonHull | 1:14.45 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 37 | Ryan POTTER | 03 | SB14 | Blackpool Aq | 1:12.23 |
| 1 | 38 | James LEROUX | 98 | SB9 | Canada | 1:11.49 |
| 2 | 39 | Jack MILNE | 01 | SB14 | GBR - MDCX | 1:10.83 |
| 3 | 40 | Robert Isak JONSSON | 01 | SB14 | Iceland | 1:10.12 |
| 4 | 41 | Joe SEAGE | 99 | SB14 | Bassetlaw SS | 1:10.07 |
| 5 | 42 | Gavin ROBERTS | 99 | SB14 | GBR - WCGX | 1:09.67 |
| 6 | 43 | Aymeric PARMENTIER | 93 | SB14 | Belgium | 1:09.28 |
| 7 | 44 | Conner MORRISON | 97 | SB14 | GBR - NDAX | 1:07.34 |
| 8 | 45 | Cameron VEARNCOMBE | 02 | SB14 | Plymouth Lea | 1:06.51 |
| 9 | 46 | Scott QUIN | 90 | SB14 | GBR - EEUX | 1:05.38 |