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| 1500 SM (13 May) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 3:56.7 | Ben Tickner | | SEN | M | 30 | 13.07.81 | Clive Thomas | Wells City/Kent/Brighton Phoenix | 3:47.67 | 3:43.00 |  |
| 2 | 4:07.0 | Matt Peel | SB | SEN | M | 27 | 07.01.85 | | Crawley/Brighton Uni | 4:06.61 | 4:01.9 | |
| 3 | 4:08.2 | James McCarthy | SB | U23 | M | 20 | 02.04.92 | Jon Bigg | Brighton & Hove/Crawley | 4:08.2 | 3:56.81 | |
| 4 | 4:12.3 | Pat Davoren | SB | V40 | M | 40 | 13.03.72 | | Brighton Phoenix | 4:12.3 | 3:42.3 | |
| 5 | 4:12.9 | Matt Bristow | SB | V35 | M | 35 | 06.10.76 | Matt Bristow | Brighton & Hove | 4:12.65 | 3:58.47 | |
| 6 | 4:14.5 | Jose Gregorio Luceron Muñoz | PB | SEN | M | 25 | 24.05.86 | | Brighton Phoenix | 4:14.5 | 4:14.5 | |
| 7 | 4:22.7 | Adrian Haines | SB | V45 | M | 45 | 21.04.67 | John Shelton | Crawley/British Airways/Southern Counties Vets | 4:11.11 | 4:08.58 | |
| 1500 U20M (13 May) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 4:02.0 | Max Pickard | SB | U20 | M | 18 | 04.06.93 | | Brighton Phoenix/Crawley | 3:56.08 | 3:56.08 | |
| 2 | 4:03.0 | William Gray | SB | U20 | M | 19 | 24.01.93 | John Clements | Brighton & Hove/Birmingham Uni | 3:57.37 | 3:57.37 | |
| 3 | 4:08.5 | Will Durkin | SB | U20 | M | 17 | 22.10.94 | Paul Collicutt | Brighton Phoenix | 4:08.5 | 4:00.06 | |
| 4 | 4:10.3 | Ross Skelton | | U20 | M | 19 | 11.05.93 | Peter Standen | Hastings AC | 4:03.40 | 4:03.40 | |
| 5 | 4:14.4 | Kris Everett-Arnarsson | SB | U20 | M | 18 | 10.06.93 | Peter Standen | Hastings AC | 4:14.4 | 4:01.68 | |
| 6 | 4:16.3 | Ludo Goodliffe | SB | U20 | M | 17 | 24.07.94 | David Leach | Lewes | 4:16.3 | 4:04.77 | |
| 7 | 4:19.8 | Henry Teague-Smith | PB | U20 | M | 17 | 27.08.94 | | Worthing | 4:14.5 | 4:14.5 | |
| 8 | 4:21.2 | Michael Stevenson | PB | U17 | M | | | | Brighton & Hove | 4:21.2 | 4:21.2 | |
| 9 | 4:27.3 | Tim Calliafas | PB | U20 | M | | | David Leach | Lewes | 4:27.3 | 4:27.3 | |
| 10 | 4:37.6 | Oliver Graveson | PB | U20 | M | 17 | 30.03.95 | | Worthing | 4:34.32 | 4:34.32 | |
| 1500 U17M 1 (13 May) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 4:06.6 | Billy White | PB | U17 | M | 15 | 25.01.97 | Paul Collicutt | Brighton Phoenix | 3:56.97 | 3:56.97 | |
| 1 | 4:18.9 | Harry Leleu | PB | U17 | M | | | | Chichester | 4:14.81 | 4:14.81 | |
| 2 | 4:35.4 | Luke Howard | PB | U17 | M | 15 | 03.04.97 | | Bodyworks | 4:35.4 | 4:35.4 | |
| 3 | 4:37.2 | Anthony Donaldson | | U17 | M | 15 | 12.01.97 | Peter Baker | Hastings AC | 4:36.93 | 4:33.0 | |
| 4 | 4:38.7 | Joshua James | PB | U17 | M | 15 | 18.11.96 | | Chichester | 4:31.60 | 4:23.70 | |
| 5 | 4:42.7 | Euan Ramage | SB | U17 | M | 16 | 07.09.95 | | Horsham Blue Star | 4:42.7 | 4:32.8 | |
| 6 | 4:46.7 | William Chadd | | U17 | M | 15 | 20.12.96 | | Crawley | 4:41.9 | 4:40.80 | |
| 7 | 4:53.6 | Martin Brooks | SB | U17 | M | 16 | 30.03.96 | John Clements | Brighton & Hove | 4:53.6 | 4:40.2 | |
| 8 | 5:02.2 | Harry Sullivan-Jones | PB | U17 | M | 15 | 11.03.97 | John Clements | Brighton & Hove | 5:02.2 | 5:02.2 | |
| 1500 U17M 2 (13 May) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 2 | 4:06.9 | Robbie Fitzgibbon | PB | U17 | M | 16 | 23.03.96 | Paul Collicutt | Brighton Phoenix | 3:55.86 | 3:55.86 | |
| 3 | 4:10.1 | Ben Golding | PB | U17 | M | 15 | 11.12.96 | Mark Best | Crawley | 4:10.1 | 4:10.1 | |
| 4 | 4:10.8 | James McKenzie | PB | U17 | M | 16 | 02.09.95 | | Chichester | 4:10.23 | 4:10.23 | |
| 5 | 4:18.1 | William Thompson | | U17 | M | 16 | 24.10.95 | Jon Bigg | Brighton Phoenix | 4:15.60 | 4:15.60 | |
| 6 | 4:18.9 | Ieuan Handley | PB | U17 | M | 14 | 14.07.97 | Andy Payne | Eastbourne | 4:16.54 | 4:13.00 | |
| 7 | 4:19.7 | Ben Collier | PB | U17 | M | 15 | 27.07.96 | | Horsham Blue Star | 4:19.7 | 4:19.7 | |
| 8 | 4:28.9 | Jack Woods | PB | U17 | M | | | | Worthing | 4:27.10 | 4:24.20 | |
| 9 | 4:34.8 | Ryan Higgs | SB | U17 | M | 15 | 19.07.96 | | Hastings AC | 4:28.61 | 4:28.61 | |
| 1500 U15M (13 May) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 4:31.8 | Stephen Ferroni | PB | U15 | M | 14 | 29.10.97 | Allison Benton | Brighton & Hove | 4:16.56 | 4:16.56 | |
| 2 | 4:41.1 | Luke Cooper | PB | U15 | M | 13 | 16.07.98 | | Hastings AC | 4:32.80 | 4:28.54 | |
| 3 | 4:44.4 | Sam Rogers | PB | U15 | M | | | David Leach | Lewes | 4:44.4 | 4:44.4 | |
| 4 | 4:50.2 | Aiden Briffett | | U15 | M | 13 | 02.11.98 | David Leach | Lewes | 4:37.4 | 4:30.48 | |
| 5 | 4:54.4 | Matthew Herring | PB | U15 | M | 13 | 20.10.98 | Peter Baker | Hastings AC | 4:53.06 | 4:53.06 | |
| 6 | 4:55.3 | Marcus Ramage | PB | U15 | M | 13 | 27.05.98 | | Horsham Blue Star | 4:55.3 | 4:55.3 | |
| 7 | 4:58.4 | Daniel Stidder | PB | U15 | M | 13 | 10.11.98 | Andy Payne | Eastbourne | 4:52.0 | 4:33.52 | |
| 8 | 5:10.5 | Remus Goldsmith | | U15 | M | 12 | 18.05.99 | | Crawley/Sussex Schs | 4:59.9 | 4:59.9 | |
| 9 | 5:11.2 | Zac Hurst | PB | U15 | M | | | | Chichester | 5:06.2 | 5:06.2 | |
| 10 | 5:23.2 | Harry Swindells | PB | U15 | M | 13 | 13.04.99 | Paul Collicutt | Brighton Phoenix | 5:23.2 | 5:23.2 | |
| 11 | 5:37.9 | Matthew Holbrook | | U15 | M | 13 | 25.10.98 | | Haywards Heath | 5:01.9 | 5:01.9 | |