| 8.1K | 25:59 | Start Fitness Metropolitan League | 2.7 | -2.0 | 11 Oct 25 | +1 |
| 3K | 9:08 | ECCA National Cross Country Relays | 3.0 | 0.3 | 1 Nov 25 | +2 |
| 4.4K | 14:08 | British Athletics Cross Challenge (inc Manchester Area League and Mid Lancs League) | 3.7 | -0.9 | 22 Nov 25 | +3 |
| parkrun | 16:41 | Panshanger parkrun # 528 | 3.9 | -0.8 | 25 Dec 25 | +4 |
| 1500 | 4:08.51 | Southern Athletics League Division 2 North & East | 2.3 | -0.2 | 30 Aug 25 | +5 |
| 5.56K | 17:23 | British Athletics Cross Challenge (inc John H Collins Gwent League) (AWAITING GWENT LEAGUE RESULTS FROM ORGANISER) | 1.0 | -0.5 | 8 Nov 25 | |
| 6K | 19:14 | Southern Men's 6-Stage Relays | 1.9 | -0.7 | 20 Sep 25 | |
| 5.47K | 17:21 | ERRA Men's National 6-Stage Relays | 1.6 | -0.5 | 4 Oct 25 | |
| 1500 | 4:01.33 | Sutcliffe Park Track & Field Nights | 0.6 | 0.5 | 13 Aug 25 | |
| 1500 | 4:00.70 | National Athletics League Championship - East | 1.0 | 0.0 | 19 Jul 25 | |
| 8K | 25:13 | Hertfordshire County Championships | 0.0 | 0.1 | 3 Jan 26 | |
| 1500 | 3:53.75 | BMC Record Breaker Races | 0.1 | -1.0 | 18 Jun 25 | |
| 800 | 1:57.45 | BMC Record Breaker Races (Mick Marlow Memorial) | 0.4 | 0.4 | 2 Jul 25 | |
| 3000 | 8:41.93 | BMC Regional Races | 1.0 | -1.2 | 21 May 25 | |
| 1500 | 3:59.88 | National Athletics League Championship - East | 0.8 | -1.0 | 31 May 25 | |
| 1500 | 4:05.14 | ESAA English Schools Championships | 1.0 | 0.7 | 11 Jul 25 | |
| parkrun | 16:36 | Stevenage parkrun # 406 | 2.7 | 0.3 | 21 Jun 25 | |
| 1500 | 4:01.38 | Watford Harriers Open Graded Meetings | 0.3 | -0.7 | 28 May 25 | |
| 1500 | 4:07.0 | Southern Athletics League Division 2 North & East | 0.6 | -0.4 | 17 May 25 | |
| 3000 | 8:45.29 | Watford Harriers Open Graded Meetings | 0.3 | -0.5 | 30 Apr 25 | |
| 6K | 23:11 | ECCA Saucony English National Championships | 9.2 | -1.3 | 22 Feb 25 | |
| parkrun | 17:11 | Hunstanton Promenade parkrun # 233 | 2.0 | 2.2 | 16 Aug 25 | |
| 1500 | 4:09.29 | Hertfordshire County Schools Championships | 0.3 | 1.1 | 7 Jun 25 | |
| 10M | 59:59 | Buntingford Year End 10 | 1.7 | 0.6 | 28 Dec 25 | |
| 6K | 20:12 | CAU Inter County Championships (inc British Athletics Cross Challenge) | 3.4 | -0.8 | 8 Mar 25 | |
| 6K | 18:59 | ESAA English Schools Championships | 0.5 | -0.2 | 15 Mar 25 | |
| 6K | 19:47 | South of England Championships | 2.3 | -0.5 | 25 Jan 25 | |
| parkrun | 16:24 | Gunpowder parkrun # 621 | 2.0 | 0.1 | 15 Feb 25 | |
| parkrun | 16:34 | Stevenage parkrun # 390 | 2.0 | 0.4 | 1 Mar 25 | |
| 4K | 15:12 | Start Fitness Metropolitan League | 8.8 | 0.3 | 8 Feb 25 | |
| parkrun | 16:46 | Gunpowder parkrun # 611 | 2.8 | 0.1 | 21 Dec 24 | |
| parkrun | 18:04 | Westmill parkrun # 335 | 4.0 | 1.7 | 29 Mar 25 | |
| 6K | 19:17 | Middlesex and Hertfordshire County Championships | 0.6 | 0.3 | 4 Jan 25 | |
| 4K | 13:04 | Start Fitness Metropolitan League | 3.4 | -0.2 | 30 Nov 24 | |
| 4.4K | 15:13 | British Athletics Cross Challenge (inc Euro Trials, L&D, Red Rose and Mid Lancs Leagues) | 5.3 | -0.2 | 23 Nov 24 | |
| 4.2K | 14:05 | Start Fitness Metropolitan League | 3.6 | 0.5 | 11 Jan 25 | |
| 7.1K | 25:42 | Start Fitness Metropolitan League | | 5.5 | 6 Dec 25 | |
| 3K | 9:37 | ECCA National Cross Country Relays | 3.3 | -0.1 | 2 Nov 24 | |
| 1500 | 4:09.13 | Watford Harriers Open Graded Meetings | 0.8 | -0.6 | 21 Aug 24 | |
| parkrun | 18:18 | Panshanger parkrun # 475 | 4.1 | 2.1 | 25 Dec 24 | |
| 3000 | 8:54.11 | ESAA English Schools' Championships | 0.7 | -0.3 | 12 Jul 24 | |
| 1500 | 4:12.47 | Southern Athletics League - Division 2 North & East | 1.0 | -0.3 | 17 Aug 24 | |
| 4K | 14:01 | Start Fitness Metropolitan League | 4.6 | 1.3 | 9 Nov 24 | |
| 3000 | 8:48.57 | Watford Harriers Open Graded Meetings | 0.7 | -1.5 | 12 Jun 24 | |
| 3000 | 9:02.15 | England Athletics U15 & U17 Open Championships, U20 & Senior Open Combined Events Championships, Junior Para Championships (11-18), UK Combined Events Championships | 1.0 | -0.1 | 26 Jul 24 | |
| parkrun | 17:33 | Barclay parkrun # 408 | 4.6 | 0.0 | 27 Jul 24 | |
| parkrun | 18:32 | Westmill parkrun # 321 | 4.0 | 2.7 | 28 Dec 24 | |
| parkrun | 16:41 | Gunpowder parkrun # 597 | 1.2 | 1.5 | 14 Sep 24 | |
| parkrun | 17:14 | Sandringham parkrun # 144 | 2.7 | 1.2 | 10 Aug 24 | |
| 3000 | 9:22.7 | Hertfordshire County Schools Championships | 2.0 | -0.5 | 8 Jun 24 | |
| 3000 | 9:00.72 | Watford Harriers Open Graded Meetings | 0.5 | -0.9 | 29 May 24 | |
| 1500 | 4:27.22 | Eastern Young Athletes League Plate Final | 1.1 | 1.7 | 8 Sep 24 | |
| 1500 | 4:17.05 | Southern Athletics League - Division 2 North & East | 1.0 | -0.9 | 18 May 24 | |
| 4.2K | 14:12 | Start Fitness Metropolitan League | 0.6 | 3.8 | 12 Oct 24 | |
| parkrun | 17:53 | Barclay parkrun # 405 | 3.4 | 1.9 | 6 Jul 24 | |
| 3000 | 9:07.22 | Watford Harriers Open Graded Meetings | 0.3 | -1.3 | 1 May 24 | |
| parkrun | 17:57 | Westmill parkrun # 285 | 4.2 | -1.0 | 20 Apr 24 | |
| parkrun | 17:02 | Gunpowder parkrun # 575 | 1.7 | -0.5 | 13 Apr 24 | |
| 1500 | 4:23.6 | Eastern Young Athletes League | 1.0 | -1.0 | 14 Apr 24 | |
| 3000 | 9:22.81 | Watford Harriers Open Graded Meetings | 0.8 | -1.7 | 3 Apr 24 | |
| parkrun | 18:01 | Westmill parkrun # 282 | 3.8 | -3.2 | 30 Mar 24 | |
| parkrun | 17:12 | Gunpowder parkrun # 577 | 1.2 | 0.4 | 27 Apr 24 | |
| 1500 | 4:24.69 | Eastern Young Athletes League | 0.2 | 1.0 | 5 May 24 | |
| parkrun | 18:49 | Westmill parkrun # 283 | 5.0 | 0.1 | 6 Apr 24 | |
| 6K | 19:34 | CAU Inter County Championships (inc British Athletics Cross Challenge) | -0.5 | -3.1 | 9 Mar 24 | |
| 4.2K | 14:46 | Start Fitness Metropolitan League | 4.4 | -4.6 | 13 Jan 24 | |
| 6K | 20:10 | South of England Championships | 0.2 | -3.8 | 27 Jan 24 | |
| 4.495K | 17:18 | ESAA English Schools Championships | 6.0 | -1.6 | 16 Mar 24 | |
| 5.7K | 21:19 | Hertfordshire County Championships | 4.8 | -4.2 | 7 Jan 24 | |
| parkrun | 18:49 | Westmill parkrun # 276 | 4.0 | -2.8 | 17 Feb 24 | |
| 3K | 10:03 | ECCA National Cross Country Relays | 3.5 | -1.8 | 4 Nov 23 | |
| parkrun | 17:44 | Gunpowder parkrun # 568 | 1.4 | -2.5 | 24 Feb 24 | |
| 4K | 14:34 | Start Fitness Metropolitan League | 4.0 | -2.7 | 10 Feb 24 | |
| 4K | 14:01 | Start Fitness Metropolitan League | 3.0 | -5.4 | 2 Dec 23 | |
| parkrun | 18:18 | Panshanger parkrun # 420 | 2.8 | -4.9 | 23 Dec 23 | |
| parkrun | 18:15 | Gunpowder parkrun # 561 | 2.0 | -2.1 | 30 Dec 23 | |
| 4.2K | 14:51 | Start Fitness Metropolitan League | 2.6 | -4.8 | 14 Oct 23 | |
| 1500 | 4:33.5 | Southern Athletics League Division 3 North | 1.6 | -1.1 | 19 Aug 23 | |
| 4K | 15:15 | Start Fitness Metropolitan League | 5.0 | -4.0 | 11 Nov 23 | |
| 1500 | 4:33.14 | Eastern Young Athletes League | 1.0 | -0.5 | 16 Jul 23 | |
| 1500 | 4:40.79 | Eastern Young Athletes League Plate Final | 1.4 | 0.1 | 10 Sep 23 | |
| 1500 | 4:29.75 | Eastern Young Athletes League | 0.1 | -0.4 | 2 Jul 23 | |
| 1500 | 4:35.1 | Southern Athletics League Division 3 North | 0.4 | 0.0 | 18 Jun 23 | |
| 1500 | 4:34.19 | Eastern Young Athletes League | 0.7 | -0.4 | 21 May 23 | |
| parkrun | 20:16 | Panshanger parkrun # 421 | 3.3 | 0.8 | 25 Dec 23 | |
| 1500 | 4:39.3 | Southern Athletics League Division 3 North | 1.4 | -0.4 | 20 May 23 | |
| 800 | 2:13.6 | Herts Phoenix AC Pre-Season Meeting | 0.0 | -2.1 | 16 Apr 23 | |
| 1500 | 4:36.6 | Eastern Young Athletes League | 0.2 | 0.4 | 23 Apr 23 | |
| 1500 | 4:43.93 | Hertfordshire County Schools | 0.6 | 1.0 | 10 Jun 23 | |
| 4.5K | 14:41 | South of England Championships | -0.4 | -5.9 | 28 Jan 23 | |
| parkrun | 19:16 | Barclay parkrun # 340 | 3.5 | -4.4 | 8 Apr 23 | |
| 5.7K | 19:38 | ESAA English Schools Championships | -1.3 | -4.4 | 18 Mar 23 | |
| 2.5K | 8:13 | Start Fitness Metropolitan League | 1.0 | -1.9 | 14 Jan 23 | |
| parkrun | 19:42 | Barclay parkrun # 325 | 5.5 | -6.7 | 24 Dec 22 | |
| 1500 | 4:49.1 | Herts Phoenix AC Pre-Season Meeting | 0.0 | 0.2 | 16 Apr 23 | |
| 4K | 16:38 | CAU Inter County Championships (inc British Athletics Cross Challenge) | 7.4 | -3.7 | 11 Mar 23 | |
| 4K | 14:33 | Start Fitness Metropolitan League | 2.2 | -4.0 | 11 Feb 23 | |
| 3.8K | 13:32 | Start Fitness Metropolitan League | 2.4 | -6.1 | 12 Nov 22 | |
| 4K | 13:55 | Start Fitness Metropolitan League | 1.0 | -5.8 | 3 Dec 22 | |
| 4K | 13:53 | South of England Masters' & Inter Counties Championships | 0.0 | -4.9 | 10 Dec 22 | |
| 4K | 15:09 | Start Fitness Metropolitan League | 3.4 | -4.8 | 15 Oct 22 | |
| 2K | 7:20 | ECCA Saucony English National Relay Championships | 4.6 | -0.3 | 5 Nov 22 | |
| 1500 | 4:47.8 | UK Youth Development League Lower Southern 2B | 1.6 | -2.2 | 30 Jul 22 | |
| 1500 | 4:59.75 | Eastern Young Athletes League | 1.9 | -0.9 | 10 Jul 22 | |
| parkrun | 20:16 | Westmill parkrun # 194 | 4.0 | -8.1 | 6 Aug 22 | |
| 1500 | 4:52.19 | UK Youth Development League Lower Southern 2B | 1.4 | -9.6 | 8 May 22 | |
| parkrun | 21:03 | Sheringham parkrun # 434 | 3.8 | -2.2 | 20 Aug 22 | |
| 1500 | 4:55.16 | UK Youth Development League Lower Southern 2B | 0.2 | 0.2 | 21 May 22 | |
| parkrun | 23:55 | Barclay parkrun # 310 | 4.0 | 3.1 | 27 Aug 22 | |
| 3.5K | 16:23 | Essex Schools' Year 7 & 8 Championships | 1.0 | 8.2 | 8 Feb 23 | |
| 4.2K | 17:31 | Start Fitness Metropolitan League | 2.2 | -3.7 | 16 Oct 21 | |
| parkrun | 22:31 | Westmill parkrun # 150 | 4.6 | -4.2 | 25 Sep 21 | |
| 3.8K | 17:19 | Start Fitness Metropolitan League | 4.4 | -1.8 | 15 Jan 22 | |
| parkrun | 22:45 | Westmill parkrun # 145 | 4.0 | -3.1 | 21 Aug 21 | |
| parkrun | 22:18 | Westmill parkrun # 143 | 3.4 | -5.4 | 7 Aug 21 | |
| 4.2K | 20:17 | Start Fitness Metropolitan League | 4.0 | 0.9 | 13 Nov 21 | |
| parkrun | 24:30 | Westmill parkrun # 142 | 4.8 | -2.7 | 31 Jul 21 | |
| parkrun | 23:46 | Westmill parkrun # 144 | 2.5 | 0.3 | 14 Aug 21 | |
| parkrun | 23:48 | Westmill parkrun # 119 | 4.6 | -3.8 | 26 Oct 19 | |
| parkrun | 23:22 | Westmill parkrun # 117 | 4.2 | -7.2 | 12 Oct 19 | |
| 4.8K | 22:58 | Hertfordshire County Championships | 1.0 | 3.1 | 9 Jan 22 | |
| parkrun | 23:53 | Westmill parkrun # 121 | 4.0 | -3.0 | 9 Nov 19 | |
| parkrun | 24:38 | Westmill parkrun # 120 | 5.0 | -2.7 | 2 Nov 19 | |
| parkrun | 25:00 | Westmill parkrun # 116 | 2.8 | 0.0 | 5 Oct 19 | |
| parkrun | 27:04 | Westmill parkrun # 130 | 4.6 | 1.9 | 4 Jan 20 | |
| parkrun | 27:41 | Westmill parkrun # 128 | 4.2 | 3.3 | 28 Dec 19 | |