| 50 m Backstroke | ||||||||||
| Age | Boys | Girls | ||||||||
| 9 | I Chan | CLP | 42.36 | Lincoln | 29/03/2008 | A Burr | LV | 40.12 | Grantham | 01/03/2008 |
| 10 | A Hird | CLP | 37.33 | Grimsby | 29/03/2008 | O Kelsey | LV | 35.45 | Grantham | 01/03/2008 |
| 11 | O Bitowt | LV | 34.14 | Grantham | 17/03/2007 | C McRae | LV | 33.27 | Grantham | 17/03/2007 |
| 12 | O Bitowt | LV | 31.05 | Grantham | 01/03/2008 | G Conlon | LV | 34.07 | Grantham | 01/03/2008 |
| 13 | R West | SL | 31.29 | Grantham | 17/03/2007 | H Burton | LV | 34.80 | Lincoln | 17/11/2007 |
| 14 | B Pogson | Bos | 29.05 | Grantham | 17/03/2007 | H Williams | LV | 31.95 | Grantham | 01/03/2008 |
| 15 | B Pogson | Bos | 27.85 | Grantham | 01/03/2008 | |||||
| 16 | K Still | CLP | 30.89 | Grantham | 17/03/2007 | H Neilson | CLP | 33.03 | Grantham | 17/03/2007 |
| 17 | ||||||||||
| 18 | K Armstrong | Lo | 31.48 | Grantham | 17/03/2007 | |||||
| 19+ | ||||||||||
| 100 m Backstroke | ||||||||||
| Age | Boys | Girls | ||||||||
| 9 | R Noonan | CLP | 1.52.59 | Sheffield | 19/01/2008 | |||||
| 10 | S Wainwright | CLP | 1.15.33 | Leicester | 27/06/1982 | E Simmonds | LV | 1.12.31 | Grantham | 17/11/2001 |
| 11 | S Wainwright | CLP | 1.12.10 | Blackpool | 10/08/1983 | E Simmonds | LV | 1.08.77 | Lincoln | 09/11/2002 |
| 12 | D Potts | LV | 1.06.54 | Sheffield | 17/10/2004 | E Simmonds | LV | 1.03.57 | Sheffield | 19/10/2003 |
| 13 | D Potts | LV | 1.04.11 | Grantham | 19/03/2005 | E Simmonds | LV | 1.01.26 | Sheffield | 17/10/2004 |
| 14 | M Graves | LV | 1.01.40 | Lincoln | 24/01/1998 | E Simmonds | LV | 1.00.88 | Berlin | 23/01/2005 |
| 15 | B Pogson | Bos | 59.56 | Grantham | 08/03/2008 | E Simmonds | LV | 1.01.38 | Sheffield | 07/04/2006 |
| 16 | J Graves | LV | 58.99 | Grantham | 02/03/2002 | E Simmonds | LV | 58.14 | Sydney | 02/11/2007 |
| 17 | M Storr | LV | 58.31 | Manchester | 28/10/2006 | M Marshall | SL | 1.02.63 | Sheffield | 10/07/1999 |
| 18 | J Graves | LV | 58.11 | Grantham | 06/03/2004 | M Marshall | SL | 1.03.35 | Seattle | 31/03/2000 |
| 19+ | J Graves | LV | 57.15 | Manchester | 28/08/2004 | C Lancaster | SL | 1.03.84 | Sheffield | 03/08/2001 |
| 200 m Backstroke | ||||||||||
| Age | Boys | Girls | ||||||||
| 9 | K Mason | LV | 3.09.09 | Grantham | 15/03/2008 | O Kelsey | LV | 3.01.37 | Grantham | 31/03/2007 |
| 10 | J Strathon | CLP | 2.49.60 | Mansfield | 18/11/2007 | O Kelsey | LV | 2.40.01 | Grantham | 15/03/2008 |
| 11 | O Bitowt | LV | 2.25.63 | Grantham | 31/03/2007 | C McRae | LV | 2.29.81 | Grantham | 31/03/2007 |
| 12 | C Bitowt | LV | 2.30.97 | Grantham | 31/03/2007 | G Conlon | LV | 2.32.40 | Grantham | 15/03/2005 |
| 13 | D Potts | LV | 2.11.78 | Sheffield | 31/07/2005 | E Simmonds | LV | 2.09.89 | Stockholm | 18/01/2005 |
| 14 | B Pogson | Bos | 2.14.74 | Enfield | 22/05/2006 | M Marshall | SL | 2.19.70 | Darlington | 30/11/1996 |
| 15 | A Mallett | LV | 2.09.00 | Sheffield | 15/10/2005 | E Simmonds | LV | 2.10.12 | Sheffield | 05/04/2006 |
| 16 | M Storr | LV | 2.06.72 | Middles'o | 14/05/2006 | E Simmonds | LV | 2.05.21 | Sydney | 02/11/2007 |
| 17 | C Oliver | SL | 2.06.72 | Grantham | 03/03/2001 | T Atkin | CLP | 2.21.78 | South'ton | 21/01/1989 |
| 18 | C Oliver | SL | 2.07.16 | Corby | 12/01/2002 | M Marshall | SL | 2.23.66 | Spalding | 18/05/2000 |
| 19+ | A Thurston | Dp | 2.11.50 | Deepings | 24/11/2001 | C Lancaster | SL | 2.23.59 | Coventry | 24/06/2000 |