| u17 Men | Name | Graded | Time/Distance | Position | Date | Venue | Competition | |
| Event | New Record | |||||||
| 100m Hurdles | Daniel Jenkins | 4 | 15.80 | 2 | 17-Apr-05 | Aberdare | SEWL | |
| Daniel Jenkins | 15.90 | 1 | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| 60m | Tom Bradbury | 7.39 | Ht 2 | 8-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | ||
| 100m | Tom Bradbury | 2 | 11.40 | 2 | 17-Apr-05 | Aberdare | SEWL | |
| Daniel Jenkins | 3 | 11.80 | 1 (b) | 17-Apr-05 | Aberdare | SEWL | ||
| Tom Bradbury | 11.30 | 1a | 8-May-05 | Cwmbran | UKYAL | |||
| Tom Bradbury | 11.50 | 1 | 15-May-05 | Newport | East Wales regional | |||
| Tom Bradbury | g2 | 11.60 | 1a | 5-Jun-05 | Cwmbran | NYAL M1 | ||
| Tom Bradbury | 11.32 | 2 | 18-Jun-05 | Cardiff | Welsh Championships | 11.2 in Ht1 | ||
| Tom Bradbury | 11.40 | 1 | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Tom Bradbury | 11.20 | 1a | 23-Jul-05 | Hereford | SEWL | |||
| Tom Bradbury | 11.80 | 2a | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| Daniel Jenkins | 12.70 | 2b | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| Tom Bradbury | 11.80 | 1a | 4-Sep-05 | Aberdare | SEWL | |||
| 200m | Tom Bradbury | 23.43 | 2 | 9-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | ||
| Ashley Green | 25.23 | Ht 1 | 9-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | |||
| Tom Bradbury | 3 | 23.90 | 1 | 17-Apr-05 | Aberdare | SEWL | ||
| Ashley Green | 24.60 | 30-Apr-05 | Aberdare | Welsh Junior League | ||||
| Tom Bradbury | 22.90 | 1b | 8-May-05 | Cwmbran | UKYAL | |||
| Tom Bradbury | 23.60 | 1 | 15-May-05 | Newport | East Wales Regional | |||
| Ashley Green | 24.70 | 3 | 15-May-05 | Newport | East Wales Regional | |||
| Tom Bradbury | 22.80 | 1a | 22-May-05 | Brecon | SEWL | |||
| Ashley Green | 24.70 | 1b | 22-May-05 | Brecon | SEWL | |||
| Tom Bradbury | g2 | 23.40 | 1a | 5-Jun-05 | Cwmbran | NYAL M1 | ||
| Ashley Green | 25.10 | 1b | 5-Jun-05 | Cwmbran | NYAL M1 | |||
| Tom Bradbury | 22.40 | 2 | 18-Jun-05 | Cardiff | Welsh Championships | |||
| Ashley Green | 24.80 | 4 | 18-Jun-05 | Cardiff | Welsh Championships | |||
| Tom Bradbury | 22.90 | 1 | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Tom Bradbury | 22.80 | 1a | 23-Jul-05 | Hereford | SEWL | |||
| Tom Bradbury | 23.60 | 1a | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| Tom Bradbury | 22.40 | 1a | 4-Sep-05 | Aberdare | SEWL | |||
| 400m | Ashley Green | 56.10 | 30-Apr-05 | Aberdare | Welsh Junior League | |||
| Ashley Green | 55.50 | 3a | 8-May-05 | Cwmbran | UKYAL | |||
| Jordan White | g4 | 54.60 | 2a | 5-Jun-05 | Cwmbran | NYAL M1 | ||
| Ashley Green | 56.10 | 1b | 5-Jun-05 | Cwmbran | NYAL M1 | |||
| Jordan White | 54.58 | 5 | 18-Jun-05 | Cardiff | Welsh Championships | 54.54 in Ht 2 | ||
| Ieuan Thomas | 53.40 | 1a | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Daniel Lester | 57.00 | 3a | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| Tom Bradbury | 56.90 | 1 | 4-Sep-05 | Aberdare | SEWL | |||
| 800m | Nathan Hardee | 2.17.23 | Ht 3 | 8-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | ||
| Nick Cornock | 2.20.10 | Ht 3 | 8-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | |||
| Gavin Hanrahan | 4 | 2.10.6 | 1 | 17-Apr-05 | Aberdare | SEWL | ||
| Daniel Lester | 2.14.7 | 1 (b) | 17-Apr-05 | Aberdare | SEWL | |||
| Daniel Lester | 2.13..5 | 30-Apr-05 | Aberdare | Welsh Junior League | ||||
| Ieuan Thomas | 1.58.8 | 1a | 8-May-05 | Cwmbran | UKYAL | |||
| Daniel Lester | 2.12.7 | 1b | 8-May-05 | Cwmbran | UKYAL | |||
| Gavin Hanrahan | 2.08.2 | 1 | 15-May-05 | Newport | East Wales Regional | |||
| Daniel Lester | 2.11.9 | 3 | 15-May-05 | Newport | East Wales Regional | |||
| Ieuan Thomas | g1 | 1.58.0 | 1a | 5-Jun-05 | Cwmbran | NYAL M1 | ||
| Daniel Lester | 2.13.9 | 2b | 5-Jun-05 | Cwmbran | NYAL M1 | |||
| Ieuan Thomas | 2.01.77 | 1 | 18-Jun-05 | Cardiff | Welsh Championships | |||
| Daniel Lester | 2.11.14 | 7 | 18-Jun-05 | Cardiff | Welsh Championships | 2.07.47 in Ht 2 | ||
| Gavin Hanrahan | 2.08.7 | 1a | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Jonathan Peters | 2.16.0 | 2b | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Gavin Hanrahan | 2.04.9 | 2a | 23-Jul-05 | Hereford | SEWL | |||
| Gavin Hanrahan | 2.07.9 | 3a | 31-Jul-05 | Newport | NYAL M4 | |||
| Ieuan Thomas | 1.59.6 | 1a | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| Gavin Hanrahan | 2.05.4 | 1b | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| 1500m | Nathan Hardee | 4.34.10 | HT 1 | 9-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | ||
| Nicki Cornock | 4.40.77 | Ht 2 | 9-Jan-05 | NIAC Cardiff | Welsh Indoor Champs | |||
| Nathan Hardee | 4.35.5 | 30-Apr-05 | Aberdare | Welsh Junior League | ||||
| Gavin Hanrahan | 4.21.3 | 1a | 8-May-05 | Cwmbran | UKYAL | |||
| Jonathan Peters | 4.34.1 | 1b | 8-May-05 | Cwmbran | UKYAL | |||
| Ieuan Thomas | 4.05.0 | 1 | 15-May-05 | Newport | East Wales Regional | |||
| Jonathan Peters | 4.33.8 | 2 | 15-May-05 | Newport | East Wales Regional | |||
| Daniel Lester | 4.46.6 | 4 | 15-May-05 | Newport | East Wales Regional | |||
| Nathan Hardee | 4.34.4 | 1a | 22-May-05 | Brecon | SEWL | |||
| Gavin Hanrahan | g3 | 4.19.4 | 1a | 5-Jun-05 | Cwmbran | NYAL M1 | ||
| Jonathan Peters | 4.32.4 | 1b | 5-Jun-05 | Cwmbran | NYAL M1 | |||
| Ieuan Thomas | 4.08.80 | 1 | 18-Jun-05 | Cardiff | Welsh Championships | |||
| Gavin Hanrahan | 4.25.2 | 1a | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Daniel Lester | 4.38.7 | 1b | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Gavin Hanrahan | 4.20.8 | 1a | 31-Jul-05 | Newport | NYAL M4 | |||
| Nathan Hardee | 4.34.7 | 1b | 31-Jul-05 | Newport | NYAL M4 | |||
| Nathan Hardee | 4.35.10 | 1 | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| 1500m S/C | Nathan Hardee | 4.52.2 | 30-Apr-05 | Aberdare | Welsh Junior League | |||
| Nathan Hardee | 4.59.7 | 1 | 15-May-05 | Newport | East Wales Regional | |||
| Nathan Hardee | g3 | 4.46.5 | 1 | 5-Jun-05 | Cwmbran | NYAL M1 | ||
| Nathan Hardee | 4.52.08 | 3 | 18-Jun-05 | Cardiff | Welsh Championships | |||
| Daniel Lester | 4.59.8 | 2a | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Nathan Hardee | 5.22.9 | 2b | 10-Jul-05 | Carmarthen | Welsh Junior League | |||
| Daniel Lester | 5.05.8 | 1 | 31-Jul-05 | Newport | NYAL M4 | |||
| Nathan Hardee | 4.53.70 | 2a | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| Daniel Lester | 4.58.60 | 1b | 20-Aug-05 | Aberdare | Jnr League Plate Final | |||
| 3000m | Gavin Hanrahan | 9.16.0 | 1 | 15-May-05 | Newport | East Wales Regional | ||
| Nathan Hardee | 9.38.4 | 2 | 15-May-05 | Newport | East Wales Regional | |||
| Gavin Hanrahan | 9.24.8 | 1 | 18-Jun-05 | Cardiff | Welsh Championships | |||
| Nathan Hardee | 9.36.4 | 1a | 31-Jul-05 | Newport | NYAL M4 | |||
| Jonathan Peters | 10.03.9 | 1b | 31-Jul-05 | Newport | NYAL M4 | |||
| Javelin | Ben Gwyer | 26.48 | 4a | 8-May-05 | Cwmbran | UKYAL | ||
| Dan Lester | 22.69 | 3a | 5-Jun-05 | Cwmbran | NYAL M1 | |||
| Discus | Ben Gwyer | 31.55 | 1a | 8-May-05 | Cwmbran | UKYAL | ||
| Ben Gwyer | 34.29 | 1a | 31-Jul-05 | Newport | NYAL M4 | |||
| Triple Jump | Nathan Hardee | 8.83 | 3 | 10-Jul-05 | Carmarthen | Welsh Junior League | ||
| Nathan Hardee | 8.35 | 2a | 31-Jul-05 | Newport | NYAL M4 | |||
| Long Jump | Daniel Lester | 4.68 | 3a | 23-Jul-05 | Hereford | SEWL | ||
| Gavin Hanrahan | 4.48 | 1b | 23-Jul-05 | Hereford | SEWL | |||
| high Jump | Daniel Lester | 1.40 | 4a | 20-Aug-05 | Aberdare | Jnr League Plate Final | ||