Event 203 Mens 100 Metre Freestyle
| Pos | Name | Age | Club | Time | Splits |
| 1 | Kieran Bird | 19 | Millfield | 52.22 | 24.86 | 52.22 |
| 2 | James Baxter | 20 | Wycombe Dist | 52.33 | 25.45 | 52.33 |
| 3 | Ryan Retson J | 18 | F.I.R.S.T. | 52.35 | 25.56 | 52.35 |
| 4 | Jonathan Milner J | 17 | Co Leeds | 52.63 | 24.84 | 52.63 |
| 5 | Charlie Poole J | 17 | Co Leicester | 52.84 | 25.69 | 52.84 |
| 6 | Huw Williams J | 16 | Millfield | 52.91 | 25.79 | 52.91 |
| 7 | Will Bell J | 16 | Co Leicester | 52.96 | 25.59 | 52.96 |
| 8 | James Brown | 21 | Ireland | 52.98 | 25.58 | 52.98 |
| 8 | Ewan Smith J | 18 | Woking | 52.98 | 25.14 | 52.98 |
| | | | | | |
| 10 | Neil Wylie J | 18 | Prescot | 53.10 | 25.45 | 53.10 |
| | | | | | |
| 11 | Reid Jones J | 16 | Plymouth Lea | 53.11 | 25.39 | 53.11 |
| 12 | Matthew Ferguson J | 17 | Woking | 53.12 | 25.55 | 53.12 |
| 13 | Tom Bloor | 21 | Crewe Flyers | 53.14 | 24.90 | 53.14 |
| 14 | Karl Morgan | 23 | Derventio | 53.15 | 25.50 | 53.15 |
| 15 | Santos Villalon J | 17 | Millfield | 53.19 | 26.29 | 53.19 |
| 16 | Max Tambling | 19 | Hamilton Dub | 53.20 | 25.67 | 53.20 |
| 17 | Sam Phippen J | 18 | Wycombe Dist | 53.22 | 25.41 | 53.22 |
| 18 | Jack Watson | 19 | Edinburgh Un | 53.28 | 25.92 | 53.28 |
| 19 | Angus Barr | 20 | UniOfStirl | 53.35 | 25.81 | 53.35 |
| 20 | Thomas Carswell J | 18 | Tadcaster | 53.37 | 25.27 | 53.37 |
| 21 | Alessandro Burdisso J | 18 | Mt Kelly | 53.41 | 25.52 | 53.41 |
| 22 | Morgan Jones J | 18 | Oswestry Ott | 53.49 | 26.34 | 53.49 |
| 23 | Jack Blair | 20 | Chesterfield | 53.59 | 25.83 | 53.59 |
| 24 | Marcel Snitko J | 18 | Hamburger | 53.70 | 25.58 | 53.70 |
| 25 | Edward Mildred J | 15 | Northampton | 53.79 | 26.25 | 53.79 |
| 26 | Jake Moxham J | 16 | Co Cambridge | 53.83 | 26.09 | 53.83 |
| 27 | Harry Noble J | 17 | Mt Kelly | 53.88 | 25.74 | 53.88 |
| 27 | Bob Sauber J | 17 | Luxembourg | 53.88 | 26.37 | 53.88 |
| 29 | Charlie Messenger | 22 | Wycombe Dist | 53.89 | 25.34 | 53.89 |
| 30 | Taylor Lovelock J | 18 | Hillingdon | 53.92 | 26.00 | 53.92 |
| 31 | Fraser Meadows | 20 | Edinburgh Un | 53.97 | 25.54 | 53.97 |
| 32 | Connor Joyce J | 18 | Cockermouth | 54.00 | 26.30 | 54.00 |
| 33 | Daniel Morley J | 17 | Derwentside | 54.06 | 26.44 | 54.06 |
| 34 | Jylano Nahr J | 17 | Netherlands | 54.07 | 26.67 | 54.07 |
| 35 | Samuel Neeld J | 18 | Wrekin Coll | 54.10 | 25.75 | 54.10 |
| 36 | Billy Pettit J | 17 | Ellesmere Co | 54.14 | 26.71 | 54.14 |
| 37 | Jean-Jacques Choron | 21 | Hastings | 54.19 | 25.13 | 54.19 |
| 38 | Jack Llewellyn J | 17 | Swansea Aq | 54.20 | 26.20 | 54.20 |
| 39 | Benjamin Campbell-Jam | 18 | Stadtwerke | 54.28 | 25.76 | 54.28 |
| 40 | Nathan McCleave J | 17 | Leatherhead | 54.29 | 26.06 | 54.29 |
| 41 | Myles Robinson-Young | 16 | Co Peterboro | 54.30 | 26.16 | 54.30 |
| 42 | Thomas Clare J | 17 | Teamipswich | 54.31 | 26.30 | 54.31 |
| 43 | Michael Ripper J | 17 | Co St Albans | 54.33 | 26.31 | 54.33 |
| 44 | Charlie Waddingham | 20 | UniOfStirl | 54.36 | 26.22 | 54.36 |
| 45 | Luke Pullen J | 16 | Guildford Ct | 54.37 | 26.54 | 54.37 |
| 46 | Sam Cottee J | 18 | Teamipswich | 54.39 | 26.08 | 54.39 |
| 47 | Konrad Fleckenstein J | 18 | SG Stadt | 54.40 | 26.07 | 54.40 |
| 48 | Eugene Brooks-Clarke | 16 | Co Sheffield | 54.45 | 26.31 | 54.45 |
| 49 | Kye Adams J | 18 | Co Bristol | 54.47 | 25.69 | 54.47 |
| 50 | Benjamin Garton J | 18 | Nene Valley | 54.48 | 26.74 | 54.48 |
| 50 | Finlay Maxwell J | 16 | Beckenham | 54.48 | 26.49 | 54.48 |
| 52 | Harry Turner | 19 | Mt Kelly | 54.59 | 26.78 | 54.59 |
| 53 | James Slade | 21 | Camden Swiss | 54.67 | 26.09 | 54.67 |
| 54 | Angus Nicol J | 17 | Co Glasgow | 54.69 | 26.42 | 54.69 |
| 55 | Jonathon Adam J | 16 | Co Cambridge | 54.73 | 26.02 | 54.73 |
| 56 | Joshua Loney J | 17 | Swansea Aq | 54.74 | 27.08 | 54.74 |
| 56 | Stefano Mitchell | 19 | Plymouth Lea | 54.74 | 26.42 | 54.74 |
| 58 | Balazs Toth J | 18 | Rushmoor Ryl | 54.91 | 25.87 | 54.91 |
| 59 | Matthew Titman J | 17 | Co Cambridge | 54.97 | 26.16 | 54.97 |
| 60 | Matt Burton J | 17 | Maxwell | 55.03 | 26.04 | 55.03 |
| 61 | Jude Liddiard J | 17 | Co St Albans | 55.09 | 26.50 | 55.09 |
| 62 | Henry Hickson J | 18 | Loftus Dol | 55.14 | 26.63 | 55.14 |
| 63 | Erico Cuna J | 18 | Plymouth Lea | 55.15 | 26.27 | 55.15 |
| 64 | Joseph Tibbetts | 20 | Portsmouth N | 55.16 | 26.12 | 55.16 |
| 65 | Quinn Van den Heuvel | 17 | Netherlands | 55.20 | 26.37 | 55.20 |
| 66 | Joseph Dobb J | 18 | Bromley | 55.27 | 26.38 | 55.27 |
| 67 | Benjamin Samuel J | 17 | Bourmth Coll | 55.28 | 26.38 | 55.28 |
| 67 | Shay Bradley J | 17 | Co Derby | 55.28 | 26.57 | 55.28 |
| 69 | Ethan Taylor J | 17 | Wrexham | 55.39 | 26.38 | 55.39 |
| 70 | Harrison Fern J | 18 | Chesterfield | 55.57 | 26.19 | 55.57 |
| 71 | Ethan Rayment J | 17 | Plymouth Lea | 55.70 | 26.83 | 55.70 |
| 72 | Stefan Iosip J | 18 | Bernhord | 55.77 | 26.18 | 55.77 |
| 73 | Samuel Pereira J | 18 | Enfield Sq | 55.93 | 26.91 | 55.93 |
| 74 | Andrew Macintosh J | 17 | EastKilbride | 56.25 | 27.06 | 56.25 |
| 75 | Louis Houette J | 18 | Aberdeen Dol | 56.34 | 26.38 | 56.34 |
| 76 | Samuel Chell J | 18 | Bo Stockton | 56.35 | 26.93 | 56.35 |
| 77 | Jake Clappison J | 18 | Co Manch Aq | 56.70 | 26.16 | 56.70 |
| -- | Joseph Page J | 18 | Havant & Wat | DQ | | |