| 2024 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 51.0 | | | | 4 | | | | Hemel Hempstead | Eastern Young Athletes League | 21 Jul 24 |
| 4x100 | 51.28 | | | | 4 | | | | Hornchurch | Eastern Young Athletes League | 5 May 24 |
| 2023 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 49.38 | | | | 3 | | | | Stevenage | Eastern Young Athletes League Plate Final | 10 Sep 23 |
| 4x100 | 49.63 | | | | 1 | | | | Stevenage | Eastern Young Athletes League | 16 Jul 23 |
| 4x100 | 50.43 | | | | 3 | | | | Hornchurch | Eastern Young Athletes League | 2 Jul 23 |
| 4x100 | 51.7 | | | | 2 | | | | Ware | Eastern Young Athletes League | 23 Apr 23 |
| 2022 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 51.91 | | | | 3 | | | | Hendon | Eastern Young Athletes League | 10 Jul 22 |
| 4x100 | 52.0 | | | | 3 | | | | Watford | Eastern Young Athletes League | 1 May 22 |
| 4x100 | 52.4 | | | | 2 | | | | Stevenage | Hertfordshire County 1500m, Masters, Disability & Relay Championships | 23 Apr 22 |
| 4x100 | 52.4 | | | | 3 | | | | St. Albans | Eastern Young Athletes League | 5 Jun 22 |
| 4x100 | 52.5 | | | | 4 | | | | Ware | UK Youth Development League Lower Southern 2B | 30 Jul 22 |
| 4x100 | 54.7 | | | | 5 | | | | Lewes | UK Youth Development League Lower Southern 2B | 3 Jul 22 |
| 4x300 | 2:52.36 | | | | 1 | | | | Eltham | UK Youth Development League Lower Southern 2B | 8 May 22 |
| 4x300 | 3:01.2 | | | | 3 | | | | Ware | UK Youth Development League Lower Southern 2B | 30 Jul 22 |
| 2021 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 52.5 | | | | 3 | | | | Hemel Hempstead | Eastern Young Athletes League | 4 Jul 21 |
| 4x100 | 54.1 | | | | 3 | | | | Watford | Eastern Young Athletes League | 12 Sep 21 |
| 4x100 | 55.9 | | | | 3 | | | | Eton | Youth Development League Lower Southern London West | 4 Sep 21 |
| 4x300 | 2:53.1 | | | | 1 | | | | Ware | Youth Development League Lower Southern London West | 17 Jul 21 |
| 4x300 | 2:54.9 | | | | 2 | | | | Eton | Youth Development League Lower Southern London West | 4 Sep 21 |
| 4x300 | 3:01.89 | | | | 1 | | | | Wormwood Scrubs | Youth Development League Lower Southern London West | 5 Jun 21 |
| 2019 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 50.8 | | | | 2 | | | | Ware | Eastern Young Athletes' League | 2 Jun 19 |
| 4x100 | 51.0 | | | | 2 | | | | Cambridge | Eastern Young Athletes' League | 7 Jul 19 |
| 4x100 | 52.8 | | | | 2 | | | | Tooting Bec | UK Youth Development U13/U15 League Division South Central 2 | 20 Jul 19 |
| 4x100 | 54.3 | | | | 4 | | | | Norwich | Eastern Young Athletes' League | 11 Aug 19 |
| 4x100 | 54.92 | | | | 3 | | | | Battersea | UK Youth Development U13/U15 League Division South Central 2 | 22 Jun 19 |
| 4x100 | 55.7 | | | | 3 | | | | Ware | UK Youth Development U13/U15 League Division South Central 2 | 18 May 19 |
| 4x100 | 55.9 | | | | 3 | | | | St. Albans | Eastern Young Athletes' League | 4 May 19 |
| 4x100 | 56.2 | | | | 4 | | | | Bedford | Eastern Young Athletes' League | 14 Apr 19 |
| 4x100 | 58.00 | | | | 2 | | | | Carshalton | UK Youth Development U13/U15 League Division South Central 2 | 27 Apr 19 |
| 4x300 | 3:29.44 | | | | 3 | | | | Carshalton | UK Youth Development U13/U15 League Division South Central 2 | 27 Apr 19 |
| 2018 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 52.0 | | | | 5 | | | | Wormwood Scrubs | UK Youth Development U13/U15 League Division South Central 1 | 17 Jun 18 |
| 4x100 | 52.02 | | | | 3 | | | | Bedford | UK Youth Development U13/U15 League Division South Central 1 | 21 Apr 18 |
| 4x100 | 52.7 | | | | 5 | | | | Mile End | UK Youth Development U13/U15 League Division South Central 1 | 19 May 18 |
| 4x100 | 53.1 | | | | 3 | | | | Ware | Eastern Young Athletes' League | 6 May 18 |
| 4x100 | 53.2 | | | | 3 | | | | Bedford | Eastern Young Athletes' League | 15 Apr 18 |
| 4x100 | 54.4 | | | | 4 | | | | Colchester | Eastern Young Athletes' League | 3 Jun 18 |
| 4x300 | 2:49.7 | | | | 1 | | | | Wormwood Scrubs | UK Youth Development U13/U15 League Division South Central 1 | 17 Jun 18 |
| 2017 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 50.1 | | | | 2 | | | | Ware | Eastern Young Athletes' League | 30 Jul 17 |
| 4x100 | 50.25 | | | | 2 | | | | Hendon | Eastern Young Athletes' League | 13 Aug 17 |
| 4x100 | 51.3 | | | | 1 | | | | Hemel Hempstead | Eastern Young Athletes' League | 4 Jun 17 |
| 4x100 | 57.88 | | | | 4 | | | | Battersea Park | UK Youth Development U13/U15 League Division South Central 2 | 22 Apr 17 |
| 4x100 | 58.1 | | | | 5 | | | | Uxbridge | UK Youth Development U13/U15 League Division South Central 2 | 20 May 17 |
| 4x300 | 2:59.64 | | | | 2 | | | | Battersea Park | UK Youth Development U13/U15 League Division South Central 2 | 22 Apr 17 |
| 4x300 | 3:02.6 | | | | 3 | | | | Uxbridge | UK Youth Development U13/U15 League Division South Central 2 | 20 May 17 |
| 2016 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 50.7 | | | | 3 | | | | Luton | Eastern Young Athletes' League | 3 Jul 16 |
| 4x100 | 50.9 | | | | 4 | | | | Cambridge | Eastern Young Athletes' League | 5 Jun 16 |
| 4x100 | 52.80 | | | | 4 | | | | Battersea | UK Youth Development U13/U15 League Division South Central 2 | 19 Jun 16 |
| 4x100 | 53.1 | | | | 3 | | | | Bedford | Eastern Young Athletes' League | 7 Aug 16 |
| 4x100 | 53.3 | | | | 3 | | | | Ware | Eastern Young Athletes' League | 8 May 16 |
| 4x100 | 55.33 | | | | 6 | | | | Mile End | UK Youth Development U13/U15 League Division South Central 2 | 16 Jul 16 |
| 4x100 | 55.57 | | | | 2 | | | | Parliament Hill | UK Youth Development U13/U15 League Division South Central 2 | 23 Apr 16 |
| 4x100 | 56.5 | | | | 4 | | | | Stevenage | Eastern Young Athletes' League | 17 Apr 16 |
| 4x100 | 56.53 | | | | 5 | | | | Eltham | UK Youth Development U13/U15 League Division South Central 2 | 21 May 16 |
| 4x300 | 2:57.05 | | | | 3 | | | | Mile End | UK Youth Development U13/U15 League Division South Central 2 | 16 Jul 16 |
| 4x300 | 3:03.45 | | | | 3 | | | | Eltham | UK Youth Development U13/U15 League Division South Central 2 | 21 May 16 |
| 4x300 | 3:05.41 | | | | 4 | | | | Parliament Hill | UK Youth Development U13/U15 League Division South Central 2 | 23 Apr 16 |
| 2015 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 53.1 | | | | 4 | | | | Stevenage | Eastern Young Athletes' League | 12 Jul 15 |
| 4x100 | 53.9 | | | | 3 | | | | Cambridge | Eastern Young Athletes' League | 19 Apr 15 |
| 4x100 | 55.4 | | | | 4 | | | | Ware | Eastern Young Athletes' League | 14 Jun 15 |
| 4x100 | 56.3 | | | | 5 | | | | Twickenham | UK Youth Development U13/U15 League Division South North/East 2 | 2 May 15 |
| 4x100 | 60.3 | | | | 5 | | | | Watford | Eastern Young Athletes' League | 10 May 15 |
| 4x100 | 63.29 | | | | 7 | | | | Perivale | UK Youth Development U13/U15 League Division South North/East 2 | 30 May 15 |
| 4x300 | 2:50.3 | | | | 2 | | | | Hemel Hempstead | UK Youth Development U13/U15 League Division South North/East 2 | 18 Jul 15 |
| 4x300 | 3:02.25 | | | | 3 | | | | Perivale | UK Youth Development U13/U15 League Division South North/East 2 | 30 May 15 |
| 4x300 | 3:11.1 | | | | 5 | | | | Winchester | UK Youth Development U13/U15 League Division South North/East 2 | 21 Jun 15 |
| 4x300 | 3:23.3 | | | | 6 | | | | Twickenham | UK Youth Development U13/U15 League Division South North/East 2 | 2 May 15 |
| 2014 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 51.8 | | | | 2 | | | | Cambridge | Eastern Young Athletes' League | 15 Jun 14 |
| 4x100 | 52.8 | | | | 6 | | | | Basildon | Eastern Young Athletes' League | 13 Jul 14 |
| 4x100 | 56.1 | | | | 5 | | | | Southend | Eastern Young Athletes' League | 11 May 14 |
| 4x100 | 58.3 | | | | 6 | | | | Watford | UK Youth Development U13/U15 League Division Southern North 1 | 31 May 14 |
| 4x100 | 58.7 | | | | 5 | | | | Walthamstow | UK Youth Development U13/U15 League Division Southern North 1 | 22 Jun 14 |
| 4x100 | DQ | | | | - | h1 | | | Birmingham | ESAA English Schools' Championships | 11 Jul 14 |
| 4x300 | 3:09.4 | | | | 5 | | | | Wormwood Scrubs | UK Youth Development U13/U15 League Division Southern North 1 | 19 Jul 14 |
| 4x300 | 3:13.4 | | | | 4 | | | | Watford | UK Youth Development U13/U15 League Division Southern North 1 | 31 May 14 |
| 4x300 | 3:16.8 | | | | 5 | | | | Walthamstow | UK Youth Development U13/U15 League Division Southern North 1 | 22 Jun 14 |
| 4x300 | 3:31.4 | | | | 6 | | | | Basildon | UK Youth Development U13/U15 League Division Southern North 1 | 3 May 14 |
| 2013 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 49.6 | | | | 2 | | | | Woodford | UK Youth Development U13/U15 League Division Southern North 1 | 22 Jun 13 |
| 4x100 | 50.5 | | | | 3 | | | | Woodford | UK Youth Development U13/U15 League Division Southern North 1 | 1 Jun 13 |
| 4x100 | 50.6 | | | | 3 | | | | Ware | Eastern Young Athletes' League | 21 Jul 13 |
| 4x100 | 50.6 | | | | 3 | | | | Cambridge | Eastern Young Athletes' League | 4 Aug 13 |
| 4x100 | 51.6 | | | | 1 | | | | Bedford | Eastern Young Athletes' League | 14 Apr 13 |
| 4x100 | 51.7 | | | | 3 | | | | Basildon | UK Youth Development U13/U15 League Division Southern North 1 | 4 May 13 |
| 4x100 | 53.8 | | | | 5 | | | | Stevenage | Eastern Young Athletes' League | 19 May 13 |
| 4x300 | 2:48.2 | | | | 3 | | | | Woodford | UK Youth Development U13/U15 League Division Southern North 1 | 1 Jun 13 |
| 2012 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 49.8 | | | | 1 | | | | St Albans | McCain Young Athletes' League Division Southern 1N | 20 May 12 |
| 4x100 | 49.9 | | | | 2 | | | | Lee Valley | Eastern Young Athletes' League | 10 Jun 12 |
| 4x100 | 50.6 | | | | 1 | | | | Grays | Eastern Young Athletes' League | 27 May 12 |
| 4x100 | 51.3 | | | | 2 | | | | Bedford | McCain Young Athletes' League Division Southern 1N | 6 May 12 |
| 4x100 | 52.1 | | | | 4 | | | | Wycombe | McCain Young Athletes' League Division Southern 1N | 17 Jun 12 |
| 4x100 | 53.8 | | | | 3 | | | | Lee Valley | Eastern Young Athletes' League | 8 Jul 12 |
| 2011 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 50.5 | | | | 1 | | | | Stevenage | Eastern Young Athletes' League | 3 Jul 11 |
| 4x100 | 50.7 | | | | 2 | | | | Walthamstow | McCain Young Athletes League Southern 1 NE Division | 19 Jun 11 |
| 4x100 | 50.8 | | | | 5 | | | | Ipswich | Eastern Young Athletes' League Plate Final | 11 Sep 11 |
| 4x100 | 50.92 | | | | 1 | | | | Croydon | McCain Young Athletes League Southern 1 NE Division | 22 May 11 |
| 4x100 | 51.4 | | | | 3 | | | | Basildon | Eastern Young Athletes' League | 24 Jul 11 |
| 4x100 | 51.7 | | | | 3 | | | | Dartford | McCain Young Athletes League Southern 1 NE Division Match 1 | 8 May 11 |
| 4x100 | 53.5 | | | | 2 | | | | Basildon | McCain Young Athletes League Southern 1 NE Division | 5 Jun 11 |
| 4x400 | 4:15.23 | | | | 3 | | | | Croydon | McCain Young Athletes League Southern 1 NE Division | 22 May 11 |
| 4x400 | 4:18.2 | | | | 2 | | | | Dartford | McCain Young Athletes League Southern 1 NE Division Match 1 | 8 May 11 |
| 4x400 | 4:24.6 | | | | 2 | | | | Walthamstow | McCain Young Athletes League Southern 1 NE Division | 19 Jun 11 |
| 2010 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 52.2 | | | | 4 | | | | Stevenage | Eastern Young Athletes' League | 11 Jul 10 |
| 4x100 | 52.45 | | | | 5 | | | | Peterborough | Eastern Young Athletes' Plate Final | 12 Sep 10 |
| 4x100 | 53.1 | | | | 2 | | | | Cambridge | Eastern Young Athletes' League | 6 Jun 10 |
| 4x100 | 53.84 | | | | 2 | | | | Hendon | McCain UK Young Athletes League Southern 1 NE | 16 May 10 |
| 4x100 | 54.4 | | | | 5 | | | | Braintree | Eastern Young Athletes' League | 27 Jun 10 |
| 4x100 | 54.8 | | | | 3 | | | | Walthamstow | McCain UK Young Athletes League Southern 1 NE - Match A | 18 Jul 10 |
| 4x400 | 4:08.0 | | | | 1 | | | | Walthamstow | McCain UK Young Athletes League Southern 1 NE - Match A | 18 Jul 10 |
| 4x400 | 4:11.63 | | | | 1 | | | | Hendon | McCain UK Young Athletes League Southern 1 NE | 16 May 10 |
| 2009 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 49.90 | | | | 3 | | | | Welwyn | McCain UK Young Athletes League Southern One East | 31 May 09 |
| 2008 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x100 | 45.6 | | | | 1 | | | | Hemel Hempstead | Eastern Young Athletes' League Auxiliary Final | 14 Sep 08 |
| 4x100 | 49.6 | | | | 2 | | | | Perivale | UKA Young Athletes League Southern 1E | 20 Jul 08 |
| 4x400 | 3:57.5 | | | | 1 | | | | Perivale | UKA Young Athletes League Southern 1E | 20 Jul 08 |
| 2007 U15 Herts Phoenix |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 4x400 | 3:56.5 | | | | 2 | | | | Parliament Hill | UKA Young Athletes League Southern 1 East | 22 Jul 07 |