 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
Jackson Andrew | 24.2 | | | 53 | 2 | 0 | 0 | 0 | | |
| 2014 | | 22:46:05 | | De Klerk Tiaan & Jackson Andrew | ACU Parachute Regiment | 36 | | | | | |  |
| 2017 | | 25:37:04 | | Gargan Frank & Jackson Andrew | Parachute Regiment | 69 | | | | | |  |
Jackson Andrew (Teddington) | 21.1 | | | 27 | 1 | 0 | 0 | 0 | | |
| 2022 | | 21:03:42 | | Jackson Andrew & Bahadur Khati Lal | Royal Engineers | 27 | | | | | |  |
Jackson C | 25.1 | | | 33 | 1 | 0 | 0 | 0 | | |
| 1996 | | 25:06:50 | | Jackson C & Barnes S J | Royal Electrical & Mechanical Engineers | 33 | | | | | |  |
Jackson Caroline Louise | 18.6 | | | 15 | 1 | 0 | 0 | 0 | | |
| 1993 | | 18:39:35 | | Jordan D S & Jackson Caroline Louise | Maidstone | 15 | | | | | |  |
Jackson J R | 24.9 | | | 24 | 2 | 0 | 0 | 0 | | |
| 1969 | | 27:21:00 | | Nagy M & Jackson J R | 7 Para RHA | 24 | | | | | |  |
| 1975 | | 22:23:21 | | Fisher R P & Jackson J R | 7 Para RHA | 23 | | | | | |  |
Jackson James | 23.1 | | | 16 | 1 | 0 | 0 | 0 | | |
| 2025 | | 23:08:28 | | Jackson James & Forrest Adam | Exeter | 16 | | | | | |  |
Jackson Jennie | 70.2 | | | 67 | 1 | 0 | 0 | 0 | | |
| 1998 | | 70:14:42 | | Jackson Jennie & Jackson Rachael | Chippenham Unit Scc | 67 | | | | | |  |
Jackson John | 20.6 | | | 14 | 1 | 0 | 0 | 0 | | |
| 2017 | | 20:33:00 | | Jackson John & Victor-Trott Theo | Hereford | 14 | | | | | |  |
Jackson John B | 29.0 | | | 4 | 2 | 0 | 0 | 1 | | |
| 1952 | FB | 34:25:00 | | Simmons Anthony & Jackson John B | Western Bay | 3 | | | | 1 | |  |
| 1963 | | 23:31:44 | | Jackson John B & Gautier Charles | Western Bay Ex | 5 | | | | | Civilian |  |
Jackson Kathryn | 26.0 | | | 64 | 1 | 0 | 0 | 0 | | |
| 1994 | | 25:58:21 | | Jackson P G & Jackson Kathryn | Warren | 64 | | | | | |  |
Jackson Margaret | 36.5 | | | 56 | 1 | 0 | 0 | 0 | | |
| 1978 | | 36:30:30 | | Jackson P & Jackson Margaret | Westel | 56 | | | | | |  |
Jackson P | 29.4 | | | 36 | 4 | 0 | 0 | 0 | | |
| 1967 | | 28:43:30 | | Jackson P & Groves H | RMA Sandhurst | 31 | | | | | |  |
| 1968 | | 28:27:00 | | Jackson P & Gibb A H | RMA Sandhurst | 16 | | | | | |  |
| 1978 | | 36:30:30 | | Jackson P & Jackson Margaret | Westel | 56 | | | | | |  |
| 1979 | | 23:50:25 | | Simmons J & Jackson P | L T R West Westel | 41 | | | | | Veteran |  |
Jackson P G | 29.1 | | | 87 | 3 | 0 | 0 | 0 | | |
| 1990 | | 30:11:43 | | Jackson P G & Bannister T | 1st Purley Scout Troop | 120 | | | | | |  |
| 1991 | | 31:09:50 | | Stephens Kathryn Anne & Jackson P G | Warren | 76 | | | | | |  |
| 1994 | | 25:58:21 | | Jackson P G & Jackson Kathryn | Warren | 64 | | | | | |  |
Jackson P1 | 33.3 | | | 130 | 1 | 0 | 0 | 0 | | |
| 1990 | | 33:16:22 | | Jackson P1 & Moss T | 12 Air Defence Regiment R.A. | 130 | | | | | |  |
Jackson Paul | 26.0 | | | 76 | 1 | 0 | 0 | 0 | | |
| 2017 | | 25:59:51 | | Jackson Paul & Whitehead Robert Devereux | 3Rd Newbury | 76 | | | | | |  |
Jackson R | 46.2 | | | 51 | 1 | 0 | 0 | 0 | | |
| 1961 | | 46:13:00 | | Colley J & Jackson R | 36 GW Regt RA | 51 | | | | | |  |
Jackson Rachael | 70.2 | | | 67 | 1 | 0 | 0 | 0 | | |
| 1998 | | 70:14:42 | | Jackson Jennie & Jackson Rachael | Chippenham Unit Scc | 67 | | | | | |  |
Jackson Richard | 30.9 | | | 118 | 1 | 0 | 0 | 0 | | |
| 2009 | | 30:53:52 | | Murphy Martin & Jackson Richard | Independent | 118 | | | | | |  |
Jackson S | 24.7 | | | 69 | 1 | 0 | 0 | 0 | | |
| 1990 | | 24:44:30 | | Johnston S C & Jackson S | Royal Marines | 69 | | | | | |  |
Jackson S N | 27.6 | | | 24 | 1 | 0 | 0 | 0 | | |
| 1976 | | 27:37:08 | | Smith J G & Jackson S N | 8 Sig.Regt | 24 | | | | | |  |
Jackson Sarah | 26.6 | | | 56 | 1 | 0 | 0 | 0 | | |
| 1999 | | 26:39:10 | | Kemp Charlie & Jackson Sarah | Royal | 56 | | | | | |  |
Jackson Simon | 27.4 | | | 91 | 1 | 0 | 0 | 0 | | |
| 2010 | | 27:25:43 | | Jackson Simon & Jose Gary | Independent | 91 | | | | | |  |
Jackson W D | 36.4 | | | 19 | 1 | 0 | 0 | 0 | | |
| 1960 | | 36:22:00 | | Reynolds O & Jackson W D | 4th Wilts (TA) | 19 | | | | | |  |
Jacobs G | 18.9 | | | 11 | 1 | 0 | 0 | 0 | | |
| 1995 | | 18:52:25 | | Leysen P & Jacobs G | Kastelse Belgium | 11 | | | | | Overseas |  |
Jacobs Sarah | 69.6 | | | 65 | 1 | 0 | 0 | 0 | | |
| 1998 | | 69:37:21 | | Blake Lorraine & Jacobs Sarah | Birmingham University | 65 | | | | | |  |
Jaeger P G De | 25.2 | | | 80 | 2 | 0 | 0 | 0 | | |
| 1986 | | 26:44:57 | | Scarisbrick E & Jaeger P G De | Stonyhurst College | 89 | | | | | |  |
| 1988 | | 23:43:30 | | Scarisbrick E & Jaeger P G De | Independent | 71 | | | | | |  |
Jagger D | 34.9 | | | 51 | 1 | 0 | 0 | 0 | | |
| 1975 | | 34:53:51 | | Jagger D & Mullings R J | 1st Bn Wessex Regt | 51 | | | | | |  |
Jagger Roger | 25.3 | | | 56 | 8 | 0 | 0 | 0 | | |
| 1989 | | 25:08:13 | | Dobbie M M & Jagger Roger | Royal Electrical & Mechanical Engineers | 75 | | | | | |  |
| 1990 | | 24:50:07 | | Jagger Roger & Turtle G | Royal Electrical & Mechanical Engineers | 70 | | | | | |  |
| 1991 | | 25:46:29 | | Jagger Roger & Fuller Jim | Royal Electrical & Mechanical Engineers | 54 | | | | | |  |
| 1992 | | 22:09:10 | | Jagger Roger & Owen Roger | Royal Electrical & Mechanical Engineers | 44 | | | | | |  |
| 2004 | C2 | 27:55:12 | | Jagger Roger & Owen Roger | Royal Electrical & Mechanical Engineers | 60 | | | | | |  |
| 2005 | | 25:49:32 | | Croucher Andrew & Jagger Roger | Royal Electrical & Mechanical Engineers | 44 | | | | | |  |
| 2007 | C2 | 26:42:28 | | Owen Roger & Jagger Roger | Royal Electrical & Mechanical Engineers | 67 | | | | | Veteran |  |
| 2008 | | 24:11:44 | | Jagger Roger & Manning Greg | Integrate Paddling | 30 | | | | | Century |  |
Jaggs W J (Bill) | 21.6 | | | 25 | 3 | 0 | 0 | 0 | | |
| 2009 | | 21:30:12 | | Dore Graham & Jaggs W J (Bill) | Poole Harbour | 28 | | | | | Century |  |
| 2010 | | 19:50:30 | | Dore Graham & Jaggs W J (Bill) | Poole Harbour | 13 | | | | | Century |  |
| 2017 | | 23:23:13 | | Lane Hugh & Jaggs W J (Bill) | Poole Harbour | 34 | | | | | |  |
Jaggs W J (Bill) (Teddington) | 19.2 | | | 15 | 1 | 0 | 0 | 0 | | |
| 2022 | | 19:11:08 | | Jaggs W J (Bill) & Worth Andrew | Poole Harbour & Exeter | 15 | | | | | |  |
James A D | 21.6 | | | 40 | 1 | 0 | 0 | 0 | | |
| 1993 | | 21:34:55 | | Musson T J & James A D | River Runners | 40 | | | | | |  |
James A T | 25.2 | | | 97 | 1 | 0 | 0 | 0 | | |
| 1987 | | 25:14:58 | | James A T & Foulds W | Llantwit Major SLSC | 97 | | | | | |  |
James Claire | 27.9 | | | 90 | 1 | 0 | 0 | 0 | | |
| 2019 | | 27:56:50 | | James Claire & James Edward | Army | 90 | | | | | |  |
James D | 50.7 | | | 73 | 1 | 0 | 0 | 0 | | |
| 1983 | | 50:40:06 | | Oates A J & James D | 10th Wakefield Scouts | 73 | | | | | |  |
James D J | 25.6 | | | 20 | 4 | 0 | 0 | 0 | | |
| 1971 | | 34:53:23 | | Taylor J & James D J | Newham | 49 | | | | | |  |
| 1974 | | 25:47:16 | | Price R & James D J | Newham | 11 | | | | | |  |
| 1975 | | 20:13:30 | | Price R & James D J | Newham | 9 | | | | | |  |
| 1981 | | 21:38:27 | | Wrafter P J & James D J | Newham | 12 | | | | | |  |
James Edward | 27.6 | | | 84 | 2 | 0 | 0 | 0 | | |
| 2016 | | 27:14:32 | | Allen Stuart & James Edward | Army Canoe Union | 78 | | | | | |  |
| 2019 | | 27:56:50 | | James Claire & James Edward | Army | 90 | | | | | |  |
James G L | 29.4 | | | 70 | 1 | 0 | 0 | 0 | | |
| 1991 | C2 | 29:26:15 | | James G L & Blakeborough Margaret | Peninsula | 70 | | | | | |  |
James Ivor | 27.7 | | | 103 | 1 | 0 | 0 | 0 | | |
| 2009 | | 27:41:32 | | James Ivor & Twitchen Michael | Stafford Canoe And Watersports Club | 103 | | | | | |  |
James L | 50.7 | | | 75 | 1 | 0 | 0 | 0 | | |
| 1983 | | 50:45:07 | | James L & Jones M | The Rose and Crown | 75 | | | | | |  |