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| 300 U15M (2 Jun) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 39.17 | Luke Brown | PB | U15 | M | 14 | 15.03.98 | Sean Price | Aberdare Valley | 38.75 | 38.75 |  |
| 2 | 40.61 | Amin Ullah | PB | U15 | M | 14 | 21.09.97 | | Barry & Vale | 40.61 | 40.61 | |
| 3 | 41.36 | Alex Love | PB | U15 | M | 14 | 02.02.98 | Tim Fry | Cardiff | 41.36 | 41.36 | |
| 4 | 43.19 | Elliot Dunn | PB | U15 | M | 12 | 22.06.99 | David Norton | Cwmbran | 42.3 | 42.3 | |
| - | DNS | Tyler Pritchard | | U15 | M | 14 | 16.09.97 | Phil Banning | Cwmbran | 38.35 | 38.35 | |
| 300 U17W (2 Jun) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 40.41 | Beth Sargent | | U17 | W | 16 | 25.10.95 | Glyn Davies | Wrexham | 39.68 | 39.68 | |
| 2 | 40.91 | Miranda Hardacre | | U17 | W | 16 | 19.12.95 | Paul Batten | Erme Valley/Armada | 40.80 | 40.80 | |
| 3 | 41.75 | Lucy Hammett | PB | U17 | W | 16 | 25.11.95 | Wynford Leyshon | Swansea | 41.67 | 41.67 | |
| 4 | 41.94 | Lara Durrani | PB | U17 | W | 16 | 06.11.95 | Helen Patricia James | Cardiff | 41.65 | 41.65 | |
| 5 | 42.80 | Melissa Roberts | | U17 | W | 14 | 06.08.97 | Phil Banning | Cwmbran | 41.21 | 41.21 | |
| 6 | 43.27 | Isabel Hughes | | U17 | W | 15 | 15.07.96 | Adrian Thomas | Bridgend | 42.21 | 42.21 | |
| 7 | 43.63 | Elinor (Ellie) Winfield | | U17 | W | 15 | 19.04.97 | Sandra Woodman | Yate | 42.7 | 42.7 | |
| 8 | 43.97 | Elise Davies | PB | U17 | W | 16 | 29.09.95 | Neal Merry | Swansea | 43.26 | 43.26 | |
| 300 U17W h1 (2 Jun) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 41.05 | Miranda Hardacre | | U17 | W | 16 | 19.12.95 | Paul Batten | Erme Valley/Armada | 40.80 | 40.80 | |
| 2 | 42.56 | Isabel Hughes | SB | U17 | W | 15 | 15.07.96 | Adrian Thomas | Bridgend | 42.21 | 42.21 | |
| 3 | 42.99 | Elinor (Ellie) Winfield | | U17 | W | 15 | 19.04.97 | Sandra Woodman | Yate | 42.7 | 42.7 | |
| 4 | 44.11 | Megan Williams | PB | U17 | W | 14 | 27.08.97 | | Cardiff | 44.11 | 44.11 | |
| 5 | 44.91 | Dannielle Franklin | SB | U17 | W | 16 | 30.04.96 | Chris Franklin | Llanelli | 44.9 | 44.03 | |
| 6 | 47.18 | Erin Hayes | PB | U17 | W | | | Ridley Griffith | Cardiff | 47.18 | 47.18 | |
| 300 U17W h2 (2 Jun) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 41.65 | Lara Durrani | PB | U17 | W | 16 | 06.11.95 | Helen Patricia James | Cardiff | 41.65 | 41.65 | |
| 2 | 41.71 | Melissa Roberts | PB | U17 | W | 14 | 06.08.97 | Phil Banning | Cwmbran | 41.21 | 41.21 | |
| 3 | 43.71 | Emma Hennessy | PB | U17 | W | 14 | 01.08.97 | | Newport | 43.71 | 43.71 | |
| 4 | 44.57 | Emily Rowlands | | U17 | W | 16 | 05.04.96 | Glyn Davies | Wrexham | 43.8 | 43.75 | |
| 5 | 44.94 | Lois Thomas | PB | U17 | W | 16 | 23.09.95 | Richard Thomas | Pembrokeshire | 44.94 | 44.94 | |
| 6 | 48.76 | Danielle Short | SB | U17 | W | 15 | 30.12.96 | Peter Lane | Cardiff | 48.76 | 46.72 | |
| 300 U17W h3 (2 Jun) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 42.19 | Beth Sargent | | U17 | W | 16 | 25.10.95 | Glyn Davies | Wrexham | 39.68 | 39.68 | |
| 2 | 42.60 | Lucy Hammett | SB | U17 | W | 16 | 25.11.95 | Wynford Leyshon | Swansea | 41.67 | 41.67 | |
| 3 | 43.26 | Elise Davies | PB | U17 | W | 16 | 29.09.95 | Neal Merry | Swansea | 43.26 | 43.26 | |
| 4 | 43.95 | Abbie Hewitt | | U17 | W | 15 | 21.09.96 | Tony Lett | Cornwall | 43.73 | 42.6 | |
| 5 | 45.67 | Alice Nottingham | SB | U17 | W | 15 | 18.10.96 | David Hawthorn | Cardiff | 45.1 | 44.41 | |
| 300 U15W (2 Jun) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 43.06 | Zoe Nash | PB | U15 | W | 14 | 20.03.98 | Jason Michael Quirke | Bridgend | 42.48 | 41.67 | |
| 2 | 43.08 | Eve Williams | PB | U15 | W | 13 | 26.10.98 | Darrell Maynard | Cwmbran | 43.08 | 43.08 | |
| 3 | 43.29 | Bethan Register | | U15 | W | 13 | 29.04.99 | Steve Knight | Cardiff | 43.19 | 43.19 | |
| 4 | 43.64 | Georgia Dickinson | PB | U15 | W | 13 | 05.04.99 | | Neath | 43.64 | 43.64 | |
| 5 | 44.95 | Emily Wooster | | U15 | W | 13 | 17.11.98 | Andrew Jolly | Barry & Vale | 44.0 | 44.0 | |
| 6 | 45.54 | Rhiannon Long | | U15 | W | | | Helen Patricia James | Cardiff | 44.72 | 44.72 | |
| 7 | 46.22 | Lucy Cuddihee | | U15 | W | 14 | 15.04.98 | Helen Patricia James | Cardiff | 45.84 | 45.84 | |
| 8 | 47.56 | Rosie-May Thompson | PB | U15 | W | 14 | 29.10.97 | | Cardiff | 47.56 | 47.56 | |
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