| 2025 U15 Chelmsford/Essex Schs |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 60 | 8.12 | i | | | 5 | h5 | | | Lee Valley | Essex and Eastern Indoor Championships | 1 Mar 25 |
| 100 | 12.72 | | 1.2 | | 5 | h2 | | | Chelmsford | Essex County Championships | 10 May 25 |
| 300 | 41.6 | | | | 3 | B | | | Watford | Eastern Young Athletes league | 18 May 25 |
| 300 | 42.6 | | | | 1 | B | | | Norwich | Eastern Young Athletes league | 13 Apr 25 |
| 800 | 2:46.4 | | | | 22 | P | | | Grays | Essex Schools Combined Events Trials | 21 May 25 |
| 60HU15M | 9.17 | i | | | 3 | | | | Lee Valley | Essex and Eastern Indoor Championships | 1 Mar 25 |
| 60HU15M | 9.31 | i | | | 2 | h1 | | | Lee Valley | Essex and Eastern Indoor Championships | 1 Mar 25 |
| 80HU15M | 11.99 | | 0.9 | | 2 | | | | Chelmsford | Essex County Championships | 10 May 25 |
| 80HU15M | 12.27 | | -2.7 | | 3 | A2 | | | Chelmsford | BLCF Hurdles Fest | 24 May 25 |
| 80HU15M | 12.3 | | | | 1 | A | | | Norwich | Eastern Young Athletes league | 13 Apr 25 |
| 80HU15M | 12.4 | | | | 2 | A | | | Watford | Eastern Young Athletes league | 18 May 25 |
| 80HU15M | 12.4 | | | | 6 | P | | | Grays | Essex Schools Combined Events Trials | 21 May 25 |
| HJ | 1.44 | | | | 16 | P | | | Grays | Essex Schools Combined Events Trials | 21 May 25 |
| LJ | 4.84 | | | | 16 | P | | | Grays | Essex Schools Combined Events Trials | 21 May 25 |
| SP4K | 8.78 | | | | 19 | P | | | Grays | Essex Schools Combined Events Trials | 21 May 25 |
| SP4K | 8.43 | | | | 2 | A | | | Norwich | Eastern Young Athletes league | 13 Apr 25 |
| SP4K | 7.63 | | | | 1 | B | | | Watford | Eastern Young Athletes league | 18 May 25 |
| PenU15M | 1928 | | | | 13 | | | | Grays | Essex Schools Combined Events Trials | 21 May 25 |
| 2024 U15 Chelmsford/Essex Schs |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 60 | 8.35 | i | | | 5 | h2 | | | Lee Valley | Essex & Eastern Indoor Championships | 2 Mar 24 |
| 100 | 12.88 | | -0.1 | | 5 | h1 | | | Chelmsford | Essex County Championships | 11 May 24 |
| 100 | 15.15 | | 0.0 | | 3 | A3 | | | Eton | 53rd London Region Prep Schools' Athletics Meeting | 10 Jun 24 |
| 200 | 25.92 | | -0.5 | | 6 | h2 | | | Chelmsford | Essex County Championships | 12 May 24 |
| 200 | 26.24 | | 0.6 | | 6 | | | | Cambridge | Eastern AA Championships | 29 Jun 24 |
| 200 | 27.16 | | -0.9 | | 1 | | | | Hornchurch | Havering AC Spring Warm Up Meeting | 7 Apr 24 |
| 800 | 2:34.6 | | | | 21 | P | | | Grays | Essex Schools Combined Events Trials | 22 May 24 |
| 80HU15M | 12.2 | | | | 1 | A | | | Chelmsford | Eastern Young Athletes League | 21 Jul 24 |
| 80HU15M | 12.52 | | 0.9 | | 1 | | | | Cambridge | Eastern AA Championships | 29 Jun 24 |
| 80HU15M | 12.67 | | 0.5 | | 2 | | | | Birmingham | National Preparatory Schools Athletics | 3 Jul 24 |
| 80HU15M | 12.75 | | -2.9 | | 2 | h1 | | | Birmingham | National Preparatory Schools Athletics | 3 Jul 24 |
| 80HU15M | 12.8 | | | | 1 | A | | | Bury St. Edmunds | Eastern Young Athletes League | 2 Jun 24 |
| 80HU15M | 12.84 | | -1.1 | | 4 | 1 | | | Hendon | Eastern Young Athletes League - Top 6 Final | 8 Sep 24 |
| 80HU15M | 12.86 | | 1.3 | | 2 | | | | Chelmsford | Essex County Championships | 11 May 24 |
| 80HU15M | 12.9 | | | | 2 | A | | | Grays | Eastern Young Athletes League - NO HAMMER | 14 Apr 24 |
| 80HU15M | 12.9 | | | | 1 | A | | | Chelmsford | Eastern Young Athletes League | 5 May 24 |
| 80HU15M | 13.1 | | | | 12= | P | | | Grays | Essex Schools Combined Events Trials | 22 May 24 |
| HJ | 1.50 | | | | 5 | | | | Chelmsford | Essex County Championships | 12 May 24 |
| HJ | 1.50 | | | | 1 | B | | | Bury St. Edmunds | Eastern Young Athletes League | 2 Jun 24 |
| HJ | 1.45 | | | | 2 | B | | | Grays | Eastern Young Athletes League - NO HAMMER | 14 Apr 24 |
| HJ | 1.45 | | | | 1 | B | | | Chelmsford | Eastern Young Athletes League | 5 May 24 |
| HJ | 1.45 | | | | 8 | | | | Hendon | Eastern Young Athletes League - Top 6 Final | 8 Sep 24 |
| HJ | NH | | | | - | P | | | Grays | Essex Schools Combined Events Trials | 22 May 24 |
| LJ | 5.26 | | | | 1 | A | | | Bury St. Edmunds | Eastern Young Athletes League | 2 Jun 24 |
| LJ | 5.13 | | | | 2 | | | | Cambridge | Eastern AA Championships | 29 Jun 24 |
| LJ | 4.94 | | | | 3 | A | | | Chelmsford | Eastern Young Athletes League | 21 Jul 24 |
| LJ | 4.94 | | | | 9 | | | | Hendon | Eastern Young Athletes League - Top 6 Final | 8 Sep 24 |
| LJ | 4.86 | | | | 2 | A | | | Chelmsford | Eastern Young Athletes League | 5 May 24 |
| LJ | 4.74 | | | | 18 | P | | | Grays | Essex Schools Combined Events Trials | 22 May 24 |
| SP4K | 8.44 | | | | 2 | A | | | Grays | Eastern Young Athletes League - NO HAMMER | 14 Apr 24 |
| SP4K | 7.70 | | | | 27 | P | | | Grays | Essex Schools Combined Events Trials | 22 May 24 |
| JT600 | 21.68 | | | | 2 | A | | | Chelmsford | Eastern Young Athletes League | 21 Jul 24 |
| JT600 | 20.73 | | | | 9 | | | | Chelmsford | Essex County Championships | 12 May 24 |
| PenU15M | 1543 | | | | 31 | | | | Grays | Essex Schools Combined Events Trials | 22 May 24 |
| 3.5KXC | 14:37 | | | | 104 | Y8 | | | Writtle University College | Essex Schools' Year 7 & 8 Championships | 27 Feb 24 |
| 2023 U13 Chelmsford/Essex Schs |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 100 | 12.95 | | | | 1 | h1 | | | Cambridge | Eastern AA Championships | 24 Jun 23 |
| 100 | 13.02 | | 1.8 | | 1 | | | | Cambridge | Eastern AA Championships | 24 Jun 23 |
| 100 | 13.3 | | | | 3 | A | | | Basildon | Eastern Young Athletes League | 6 Aug 23 |
| 100 | 13.35 | | 1.4 | | 3 | h1 | | | Grays | Essex County Championships | 13 May 23 |
| 100 | 13.5 | | | | 2 | A | | | Chelmsford | Eastern Young Athletes League | 16 Jul 23 |
| 100 | 13.65 | | 1.7 | | 7 | | | | Grays | Essex County Championships | 13 May 23 |
| 75HU13M | 12.18 | w | 3.9 | | 1 | B2 | | | Walton | Derek Crookes Under-13 Inter-County Track & Field | 29 Jul 23 |
| 75HU13M | 12.3 | | | | 1 | A | | | Chelmsford | Eastern Young Athletes League | 16 Jul 23 |
| 75HU13M | 12.42 | w | 3.2 | | 2 | | | | Grays | Essex County Championships | 13 May 23 |
| 75HU13M | 12.49 | | 1.6 | | 2 | | | | Cambridge | Eastern AA Championships | 24 Jun 23 |
| 75HU13M | 12.54 | | -0.1 | | 1 | A | | | Stevenage | Eastern Young Athletes League | 21 May 23 |
| 75HU13M | 13.5 | | | | 1 | A | | | Basildon | Eastern Young Athletes League | 6 Aug 23 |
| HJ | 1.41 | | | | 1 | B | | | Stevenage | Eastern Young Athletes League | 21 May 23 |
| LJ | 4.92 | | | | 1 | A | | | Chelmsford | Eastern Young Athletes League Cup Final | 10 Sep 23 |
| LJ | 4.75 | | 1.7 | | 2 | B | | | Walton | Derek Crookes Under-13 Inter-County Track & Field | 29 Jul 23 |
| LJ | 4.73 | | | | 1 | A | | | Stevenage | Eastern Young Athletes League | 21 May 23 |
| LJ | 4.62 | | | | 1 | | | | Cambridge | Eastern AA Championships | 24 Jun 23 |
| LJ | 4.45 | | | | 1 | A | | | Chelmsford | Eastern Young Athletes League | 16 Jul 23 |
| LJ | 4.33 | | | | 3 | | | | Grays | Essex County Championships | 13 May 23 |
| SP3K | 9.23 | | | | 1 | A | | | Basildon | Eastern Young Athletes League | 6 Aug 23 |
| SP3K | 8.80 | | | | 1 | A | | | Chelmsford | Eastern Young Athletes League Cup Final | 10 Sep 23 |