| Under-15 Boys 100 Metres HEAT 1
(Kingsmeadow Stadium, 23 May) | | 1 | | Harry Grindle | (Belgrave Harriers) | 11.80 | +1.6 | | Q | | | 2 | | Michael Miller | (Herne Hill Harriers) | 11.96 | +1.6 | | Q | | | 3 | | Daniel Ajayi | (OvGrS) | 12.72 | +1.6 | | | | | 4 | | Joshua Dodson | (Guildford & Godalming AC) | 13.07 | +1.6 | | | | | 5 | | Nathan Essel | (Herne Hill Harriers) | 13.75 | +1.6 | | | | | 6 | | Tolu Ayo-Ojo | (Camberley & District AC) | 13.94 | +1.6 | | | |
| | | Under-15 Boys 100 Metres HEAT 2
(Kingsmeadow Stadium, 23 May) | | 1 | | Jamel Powell | (Herne Hill Harriers) | 11.97 | +1.0 | | Q | | | 2 | | Oscar Blanchard | (St Mary's Richmond AC) | 12.14 | +1.0 | | Q | | | 3 | | Luke Mulley | (South London Harriers) | 12.27 | +1.0 | | q | | | 4 | | Lewis Herzog | (Camberley & District AC) | 12.52 | +1.0 | | | | | 5 | | Jack Ennis | (Croydon Harriers) | 13.89 | +1.0 | | | | | 6 | | Caique Fonseca | (Hercules Wimbledon AC) | 14.94 | +1.0 | | | |
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