| 2026 U20 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 6KXC | 22:25 | | | | 8 | R7 | 8 | 4 | Stevenage | Hertfordshire County Championships | 3 Jan 26 |
| 2025 U20 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 800 | 2:30.09 | | | | 12 | 7 | | | Watford | Watford Harriers Open Graded Meetings | 16 Apr 25 |
| 1500 | 4:55.09 | | | | 4 | 5 | | | Watford | Watford Harriers Open Graded Meetings | 28 May 25 |
| 1500 | 4:56.18 | | | | 11 | 5 | | | Watford | Watford Harriers Open Graded Meetings | 2 Apr 25 |
| 1500 | 4:58.02 | | | | 11 | 4 | | | Watford | Watford Harriers Open Graded Meetings | 25 Jun 25 |
| 1500 | 4:58.29 | | | | 1 | | | | Hemel Hempstead | Hertfordshire County Schools Championships | 7 Jun 25 |
| 1500 | 5:04.27 | | | | 13 | 6 | | | Watford | Watford Harriers Open Graded Meetings | 30 Apr 25 |
| 1500 | 5:13.38 | | | | 2 | | | | Stevenage | Hertfordshire County Championships - Day 1 | 5 May 25 |
| 3000 | 10:39.14 | | | | 17 | 1 | | | Watford | Watford Harriers Open Graded Meetings | 11 Jun 25 |
| 3000 | 10:46.89 | | | | 22 | 1 | | | Watford | Watford Harriers Open Graded Meetings | 14 May 25 |
| 4.4KXC | 17:57 | | | | 16 | | | 5 | Campbell Park | Chiltern League | 6 Dec 25 |
| 4.72KXC | 20:07 | | | | 2 | | | 2 | Shotover Park | Chiltern League | 8 Feb 25 |
| 5KXC | 19:02 | | | | 9 | | | 7 | Cassiobury Park | Chiltern League | 11 Jan 25 |
| 5KXC | 22:06 | | | | 140 | | | | Wollaton Park | CAU Inter County Championships (inc British Athletics Cross Challenge) | 8 Mar 25 |
| parkrun | 19:21 | | | | 11 | | 1 | 1 | Cassiobury | Cassiobury parkrun # 470 | 12 Apr 25 |
| parkrun | 20:16 | | | | 6 | | 1 | 1 | Ross-on-Wye | Ross-on-Wye parkrun # 182 | 5 Apr 25 |
| 6KXC | 23:58 | | | | 10 | | | 5 | Trent Park | Middlesex and Hertfordshire County Championships | 4 Jan 25 |
| 6KXC | 25:21 | | | | 40 | | | | Beckenham Place | South of England Championships | 25 Jan 25 |
| 2024 U17 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 800 | 2:25.99 | | | | 7 | 4 | | | Watford | Watford Harriers Open Graded Meetings | 12 Jun 24 |
| 800 | 2:33.18 | | | | 11 | 5 | | | Watford | Watford Harriers Open Graded Meetings | 4 Sep 24 |
| 1500 | 4:52.29 | | | | 9 | 4 | | | Watford | Watford Harriers Open Graded Meetings | 3 Apr 24 |
| 1500 | 4:58.0 | | | | 2 | | | | Hemel Hempstead | Hertfordshire County Schools Championships | 8 Jun 24 |
| 3000 | 10:18.49 | | | | 12 | 01 | | | Watford | Watford Harriers Open Graded Meetings | 17 Apr 24 |
| 3000 | 10:24.17 | | | | 12 | | | | Watford | Watford Harriers Open Graded Meetings | 29 May 24 |
| 3000 | 10:28.88 | | | | 14 | 1 | | | Watford | Watford Harriers Open Graded Meetings | 26 Jun 24 |
| 3000 | 10:29.18 | | | | 14 | | | | Birmingham | ESAA English Schools' Championships | 12 Jul 24 |
| 4.6KL | 17:19 | | | | 14 | L1 | | 11 | Aldershot | Southern Women's 4-Stage Relays | 21 Sep 24 |
| 4.72KXC | 21:07 | | | | 6 | | | 6 | Shotover Park | Chiltern League | 10 Feb 24 |
| 5KXC | 18:39 | | | | 6 | | | 5 | Cassiobury Park | Chiltern League | 13 Jan 24 |
| 5KXC | 19:22 | | | | 93 | | | | Wollaton Park | CAU Inter County Championships (inc British Athletics Cross Challenge) | 9 Mar 24 |
| 5KXC | 19:39 | | | | 5 | | | 3 | Milton Keynes | Chiltern League | 9 Nov 24 |
| 5KXC | 19:55 | | | | 7 | | | 5 | Keysoe | Chiltern League | 12 Oct 24 |
| parkrun | 19:02 | | | | 3 | | 1 | 1 | Southend | Southend parkrun # 554 | 10 Aug 24 |
| parkrun | 19:24 | | | | 30 | | 3 | 1 | Rickmansworth | Rickmansworth parkrun # 337 | 21 Dec 24 |
| parkrun | 19:45 | | | | 8 | | 1 | 1 | Southwick Country Park | Southwick Country Park parkrun # 602 | 17 Aug 24 |
| 5.1KXC | 20:45 | | | | 5 | | | 3 | Luton | Chiltern League | 30 Nov 24 |
| 5.7KXC | 23:51 | | | | 17 | | 2 | 2 | St Albans | Hertfordshire County Championships | 7 Jan 24 |
| 2023 U17 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 800 | 2:27.35 | | | | 1 | 1.2 | | | Watford | Watford Harriers Open Graded Meetings | 9 Aug 23 |
| 800 | 2:35.24 | | | | 11 | 6 | | | Watford | Watford Harriers Open Graded Meetings | 19 Apr 23 |
| 1500 | 4:57.67 | | | | 9 | 3 | | | Watford | Watford Harriers Open Graded Meetings | 23 Aug 23 |
| 1500 | 4:58.15 | | | | 8 | 4 | | | Watford | Watford Harriers Open Graded Meetings | 5 Apr 23 |
| 1500 | 4:59.53 | | | | 10 | 4 | | | Watford | Watford Harriers Open Graded Meetings | 26 Jul 23 |
| 1500 | 5:00.25 | | | | 7 | 5 | | | Watford | Watford Harriers Open Graded Meetings | 31 May 23 |
| 1500 | 5:03.12 | | | | 7 | | | | Stevenage | Hertfordshire & Bedfordshire County Championships | 1 May 23 |
| 1500 | 5:05.93 | | | | 2 | | | | Hemel Hempstead | Hertfordshire County Schools | 10 Jun 23 |
| 3000 | 10:17.95 | | | | 15 | 1 | | | Watford | Watford Harriers Open Graded Meetings | 14 Jun 23 |
| 3000 | 10:29.46 | | | | 17 | 1 | | | Watford | Watford Harriers Open Graded Meetings | 12 Jul 23 |
| 3000 | 11:06.41 | | | | 18 | | | | Birmingham | ESAA - English Schools Championships | 1 Jul 23 |
| 3.9KXC | 12:48 | | | | 22 | | | | Nottingham | ESAA English Schools Championships | 18 Mar 23 |
| 4KXC | 16:58 | | | | 14 | | | | Loughborough | CAU Inter County Championships (inc British Athletics Cross Challenge) | 11 Mar 23 |
| 4.3KXC | 16:55 | | | | 1 | | | | Milton Keynes | Chiltern League | 14 Jan 23 |
| 4.5KXC | 15:44 | | | | 5 | | | | Beckenham Place | South of England Championships | 28 Jan 23 |
| 4.5KXC | 19:26 | | | | 10 | | 1 | | Watford | Hertfordshire County Championships | 8 Jan 23 |
| 4.6KL | 18:13 | | | | 9 | L02 | | | Aldershot | Southern Young Athletes Relays | 23 Sep 23 |
| 5.0KXC | 19:02 | | | | 6 | | | 5 | Luton | Chiltern League | 2 Dec 23 |
| 5KXC | 20:13 | | | | 5 | | | 5 | Milton Keynes | Chiltern League | 11 Nov 23 |
| parkrun | 18:46 | | | | 6 | | 1 | 1 | Cassiobury | Cassiobury parkrun # 369 | 3 Jun 23 |
| parkrun | 18:50 | | | | 3 | | 1 | 1 | Cassiobury | Cassiobury parkrun # 371 | 17 Jun 23 |
| parkrun | 19:06 | | | | 5 | | 1 | 1 | Billericay | Billericay parkrun # 228 | 25 Feb 23 |
| parkrun | 19:13 | | | | 16 | | 2 | 1 | Cassiobury | Cassiobury parkrun # 375 | 15 Jul 23 |
| parkrun | 19:45 | | | | 5 | | 1 | 1 | Cassiobury | Cassiobury parkrun # 400 | 30 Dec 23 |
| parkrun | 20:31 | | | | 6 | | 2 | 1 | Gadebridge | Gadebridge parkrun # 355 | 29 Jul 23 |
| 5.2KXC | 19:23 | | | | 4 | | | 3 | Bedford | Chiltern League | 14 Oct 23 |
| 2022 U15 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 200 | 32.0 | | | | 5 | B | | | Southampton | UK Youth Development League Lower Southern 1A | 8 May 22 |
| 800 | 2:29.81 | | | | 3 | 4 | | | Watford | Watford Open Graded Meeting | 18 May 22 |
| 800 | 2:32.25 | | | | 11 | 4 | | | Watford | Watford Open Graded Meeting | 7 Sep 22 |
| 800 | 2:32.43 | | | | 7 | 6 | | | Watford | Watford Open Graded Meeting | 20 Apr 22 |
| 800 | 2:32.81 | | | | 5 | 3 | | | Watford | Watford Open Graded Meeting | 10 Aug 22 |
| 1500 | 5:01.3 | | | | 3 | B | | | Southampton | UK Youth Development League Lower Southern 1A | 8 May 22 |
| 1500 | 5:01.75 | | | | 7 | 3 | | | Watford | Watford Open Graded Meeting | 29 Jun 22 |
| 1500 | 5:02.70 | | | | 12 | 4 | | | Watford | Watford Open Graded Meeting | 27 Jul 22 |
| 1500 | 5:03.36 | | | | 12 | 6 | | | Watford | Watford Open Graded Meeting | 4 May 22 |
| 1500 | 5:04.44 | | | | 2 | 4 | | | Watford | Watford Open Graded Meeting | 6 Apr 22 |
| 1500 | 5:04.78 | | | | 7 | 3 | | | Watford | Watford Open Graded Meeting | 24 Aug 22 |
| 1500 | 5:09.04 | | | | 2 | B | | | Eton | UK Youth Development League Lower Southern 1A | 30 Jul 22 |
| 1500 | 5:09.4 | | | | 2 | | | | Stevenage | Hertfordshire County 1500m, Masters, Disability & Relay Championships | 23 Apr 22 |
| 1500 | 5:12.98 | | | | 2 | | | | Hemel Hempstead | Hertfordshire Schools Championships | 11 Jun 22 |
| 3000 | 11:08.76 | | | | 18 | 1 | | | Watford | Watford Open Graded Meeting | 15 Jun 22 |
| SP3K | 4.28 | | | | 2 | B | | | Eton | UK Youth Development League Lower Southern 1A | 30 Jul 22 |
| JT500 | 9.77 | | | | 4 | B | | | Southampton | UK Youth Development League Lower Southern 1A | 8 May 22 |
| 2KXC | 7:19 | | | | 6 | L1 | | | Wormwood Scrubs | South of England AA Relay Championships | 22 Oct 22 |
| 3KL | 11:41 | | | | 13 | C | | | Rushmoor | Aldershot Road Relays | 24 Sep 22 |
| 3.19KXC | 12:48 | | | | 13 | | | | Tonbridge | ESAA English Schools Championships | 19 Mar 22 |
| 3.85KXC | 14:29 | | | | 3 | U15W | | | Oxford | Chiltern League | 15 Oct 22 |
| 3.88KL | 15:23 | | | | 19 | L3 | | | Sutton Park | ERRA National Young Athlete Relays | 8 Oct 22 |
| 4KXC | 14:05 | | | | 9 | | | | Horspath | South of England Masters' & Inter Counties Championships | 10 Dec 22 |
| 4KXC | 15:17 | | | | 8 | | | | Shuttleworth Park | Chiltern League | 19 Feb 22 |
| 4KXC | 15:51 | | | | 19 | | | | Beckenham | South of England AA Championships | 29 Jan 22 |
| 4KXC | 18:08 | | | | 34 | | | | Parliament Hill | ECCA Saucony English National Championships | 26 Feb 22 |
| 4.2KXC | 15:37 | | | | 2 | | | | Luton | Chiltern League | 3 Dec 22 |
| 4.2KXC | 16:51 | | | | 45 | | | | Loughborough | CAU Inter County Championships (Inc British Athletics Cross Challenge) | 12 Mar 22 |
| 4.3KXC | 17:24 | | | | 7 | | | | Milton Keynes | Chiltern League | 15 Jan 22 |
| 4.4KXC | 17:07 | | | | 13 | | | 13 | Milton Keynes | Chiltern League (Inc British Cross Challenge & Home Countries International & Oxford Uni v RAF) | 12 Nov 22 |
| 4.8KXC | 21:09 | | | | 18 | | 2 | | Stanborough | Hertfordshire County Championships | 9 Jan 22 |
| 2021 U15 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 100 | 16.0 | | | | 4 | nsB | | | Bedford | Youth Development League Lower Southern North West | 5 Jun 21 |
| 100 | 16.5 | | | | 6 | nsA | | | Bracknell | Youth Development League Lower Southern North West | 4 Sep 21 |
| 800 | 2:36.13 | | | | 3 | H | | | Watford | Hertfordshire & Bedfordshire County Championships | 31 Jul 21 |
| 800 | 2:39.34 | | | | 11 | 3 | | | Watford | Watford Open Graded Meeting | 8 Sep 21 |
| 1500 | 5:02.30 | | | | 6 | 3 | | | Watford | Watford Open Graded Meeting | 28 Jul 21 |
| 1500 | 5:09.4 | | | | 3 | | | | Hemel Hempstead | Hertfordshire Schools Championships | 12 Jun 21 |
| 1500 | 5:13.55 | | | | 8 | 4 | | | Harrow | Harrow AC Spring Open | 29 Apr 21 |
| 1500 | 5:13.56 | | | | 12 | 3 | | | Watford | Watford Open Graded Meeting | 25 Aug 21 |
| 1500 | 5:13.83 | | | | 1 | 1 | | | Harrow | Harrow AC Spring Open | 20 May 21 |
| 1500 | 5:15.5 | | | | 2 | B | | | Bracknell | Youth Development League Lower Southern North West | 4 Sep 21 |
| 1500 | 5:17.11 | | | | 8 | 2 | | | Eton | Windsor, Slough, Eton & Hounslow Middle Distance & Sprints Closed Meeting | 16 May 21 |
| 1500 | 5:22.16 | | | | 5 | 1 | | | Harrow | Harrow AC Open | 9 Sep 21 |
| 3000 | 10:51.84 | | | | 7 | 1 | | | Harrow | Harrow Spring Open | 13 May 21 |
| 3000 | 10:54.66 | | | | 13 | 4 | | | Harrow | Harrow AC 3000m Spring Open | 22 Apr 21 |
| DT1K | 10.16 | | | | 3 | B | | | Bracknell | Youth Development League Lower Southern North West | 4 Sep 21 |
| DT1K | 6.95 | | | | 4 | B | | | Bedford | Youth Development League Lower Southern North West | 5 Jun 21 |
| 3.88KL | 15:03 | | | | 13 | L2 | | | Sutton Park | ERRA National Young Athlete Relays | 9 Oct 21 |
| 4KXC | 15:34 | | | | 9 | | | | Shotover Hill | Chiltern League | 16 Oct 21 |
| 4KXC | 16:05 | | | | 30 | | | | Croydon | South of England Masters' & Inter Counties Championships | 11 Dec 21 |
| 4.2KXC | 16:59 | | | | 8 | | | | Luton | Chiltern League | 4 Dec 21 |
| 4.4KXC | 17:20 | | | | 15 | | | | Milton Keynes | Chiltern League (Inc British Athletics Cross Challenge & Oxford Uni Trials) | 13 Nov 21 |
| parkrun | 21:17 | | | | 6 | | 2 | 1 | Gadebridge | Gadebridge parkrun # 274 | 18 Dec 21 |
| 2020 U13 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 1500 | 5:19.96 | | | | 2 | 1 | | | Harrow | Harrow AC 800m, 1500m Race Night & Long Jump | 24 Sep 20 |
| Mile | 5:46.69 | | | | 1 | 3 | | | Harrow | Harrow AC Early Autumn Mile & 3000m | 1 Oct 20 |
| 2.8KXC | 11:19 | | | | 30 | | | | Milton Keynes | Chiltern League | 8 Feb 20 |
| 3KXC | 12:05 | | | | 10 | | | | Fairlands Valley | Hertfordshire County Championships | 5 Jan 20 |
| 3KXC | 13:45 | | | | 37 | | | | Keysoe | Chiltern League | 11 Jan 20 |
| 2019 U13 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| 1.5KXC | 6:25 | | | | 17 | | | | Milton Keynes | Chiltern League | 9 Feb 19 |
| 2KXC | 8:21 | | | | 23 | | | | Keysoe | Chiltern League | 12 Jan 19 |
| 2.8KXC | 11:51 | | | | 20 | | | | Luton | Chiltern League | 7 Dec 19 |
| 2.9KXC | 12:13 | | | | 42 | | | | Shottover Hill | Chiltern League | 12 Oct 19 |
| parkrun | 22:13 | | | | 62 | | | 1 | St Albans | St Albans parkrun # 394 | 22 Jun 19 |
| parkrun | 23:30 | | | | 35 | | 2 | 1 | Gadebridge | Gadebridge parkrun # 205 | 20 Apr 19 |
| parkrun | 24:20 | | | | 35 | | | 1 | Gadebridge | Gadebridge parkrun # 216 | 13 Jul 19 |
| 2018 U11 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| parkrun | 25:27 | | | | 35 | | | 1 | Gadebridge | Gadebridge parkrun # 181 | 3 Nov 18 |
| parkrun | 25:39 | | | | 42 | | | 1 | Gadebridge | Gadebridge parkrun # 179 | 20 Oct 18 |
| parkrun | 26:44 | | | | 68 | | | 1 | Tring | Tring parkrun # 202 | 14 Jul 18 |
| parkrun | 28:46 | | | | 111 | | | | Tring | Tring parkrun # 203 | 21 Jul 18 |
| parkrun | 28:56 | | | | 120 | | | 1 | Tring | Tring parkrun # 196 | 2 Jun 18 |
| 2017 U11 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| parkrun | 27:57 | | | | 186 | | | | Southend | Southend parkrun # 244 | 13 May 17 |
| parkrun | 29:26 | | | | 136 | | | | Tring | Tring parkrun # 136 | 22 Apr 17 |
| parkrun | 31:06 | | | | 90 | | | 1 | Tring | Tring parkrun # 121 | 7 Jan 17 |
| 2016 U11 Chiltern |
| Event | Perf | | | | Pos | | | | Venue | Meeting | Date |
| parkrun | 26:33 | | | | 224 | | | 1 | St Albans | St Albans parkrun # 253 | 29 Oct 16 |
| parkrun | 33:09 | | | | 158 | | | | Tring | Tring parkrun # 119 | 31 Dec 16 |