 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
Lambe J T | 52.7 | | | 107 | 1 | 0 | 0 | 0 | | |
| 1997 | | 52:40:34 | | Lambe J T & Daniel D M | Downside School F | 107 | | | | | |  |
Lambe Jeanette R-M | 28.3 | | | 130 | 1 | 0 | 0 | 0 | | |
| 1987 | | 28:17:39 | | Stead R F & Lambe Jeanette R-M | Portsmouth | 130 | | | | | |  |
Lambert Mike | 24.6 | | | 57 | 1 | 0 | 0 | 0 | | |
| 2019 | | 24:35:11 | | Banfield Paul & Lambert Mike | RAF | 57 | | | | | |  |
Lambert Sharon | 39.8 | | | 98 | 2 | 0 | 0 | 0 | | |
| 1981 | | 33:55:14 | | Lambert Sharon & Skinner Sheila | Independent | 63 | | | | | |  |
| 1986 | | 45:47:25 | | Ashmead Sarah & Lambert Sharon | Independent | 132 | | | | | |  |
Lambert Simon | 27.6 | | | 70 | 1 | 0 | 0 | 0 | | |
| 2011 | | 27:35:49 | | Bell Michael & Lambert Simon | London Fire Brigade | 70 | | | | | |  |
Lamble Trenton | 21.6 | | | 30 | 1 | 0 | 0 | 0 | | |
| 2009 | | 21:36:07 | | Prinsloo Lawrence & Lamble Trenton | Richmond | 30 | | | | | |  |
Lambley Judy | 27.1 | | | 60 | 2 | 0 | 0 | 0 | | |
| 1994 | | 23:41:59 | | Lemin Jim & Lambley Judy | Pangbourne | 46 | | | | | |  |
| 1995 | | 30:37:30 | | Lambley Judy & Newman P J | Pangbourne Advent. Dolphin | 74 | | | | | |  |
Lambourn I J K | 24.4 | | | 82 | 1 | 0 | 0 | 0 | | |
| 1988 | | 24:26:15 | | Taylor C D & Lambourn I J K | Independent | 82 | | | | | |  |
Lambourn Jane | 36.8 | | | 126 | 1 | 0 | 0 | 0 | | |
| 1989 | | 36:50:19 | | Tucker D A & Lambourn Jane | Independent | 126 | | | | | |  |
Lancaster J M | 34.9 | | | 135 | 2 | 0 | 0 | 0 | | |
| 1986 | | 37:10:46 | | Lancaster J M & Cochrane G | HMS Dalriada (RNR) | 126 | | | | | |  |
| 1987 | | 32:40:30 | | Lancaster J M & Harris Dianne | HMS Dalriada | 144 | | | | | |  |
Landale William | 28.6 | | | 86 | 1 | 0 | 0 | 0 | | |
| 2012 | | 28:37:59 | | Landale William & Tukes Hastings Charlie | Independent | 86 | | | | | |  |
Landers David | 24.6 | | | 35 | 1 | 0 | 0 | 0 | | |
| 2006 | | 24:39:50 | | Landers David & McDaid Jamie | Chelmsford | 35 | | | | | |  |
Lane Alex | 17.1 | | | 2 | 3 | 0 | 3 | 0 | | |
| 2026 | | 17:08:41 | | Gregory Magnus & Lane Alex | Southampton & Reading | 2 | | | 1 | | Mixed |  |
| 2026 | | 17:08:41 | | Gregory Magnus & Lane Alex | Southampton & Reading | 2 | | | 1 | | Mixed |  |
| 2026 | | 17:08:41 | | Gregory Magnus & Lane Alex | Southampton & Reading | 2 | | | 1 | | Mixed |  |
Lane Alexandra | 19.6 | | | 15 | 4 | 1 | 1 | 1 | | |
| 2014 | | 24:22:27 | | Lane Hugh & Lane Alexandra | Independent | 53 | | | | | |  |
| 2015 | | 18:00:36 | | Lane Alexandra & Zielski Radek | Reading | 3 | | | | 1 | |  |
| 2016 | | 17:59:45 | | Burbeck Katherine & Lane Alexandra | Nottingham & Longridge | 2 | | | 1 | | Ladies |  |
| 2019 | | 18:01:58 | | Lane Alexandra & Seaford Daniel | Reading | 1 | | 1 | | | Civilian,Mixed |  |
Lane Hugh | 23.4 | | | 31 | 8 | 0 | 0 | 0 | | |
| 2003 | | 24:36:35 | | Lane Hugh & Lane Joe | Independent | 16 | | | | | |  |
| 2004 | | 23:32:51 | | Lane Hugh & Lane Joe | Exeter | 28 | | | | | |  |
| 2005 | | 23:30:05 | | Lane Hugh & Lane Joe | Exeter | 26 | | | | | |  |
| 2010 | | 22:38:57 | | Lane Hugh & Stocker Mark | Poole Harbour | 43 | | | | | |  |
| 2012 | | 22:03:57 | | Dore Graham & Lane Hugh | Poole Harbour | 16 | | | | | Century |  |
| 2014 | | 24:22:27 | | Lane Hugh & Lane Alexandra | Independent | 53 | | | | | |  |
| 2017 | | 23:23:13 | | Lane Hugh & Jaggs W J (Bill) | Poole Harbour | 34 | | | | | |  |
| 2019 | | 23:04:54 | | Lane Hugh & Worth Andrew | Exeter | 34 | | | | | |  |
Lane J E | 26.7 | | | 12 | 1 | 0 | 0 | 0 | | |
| 1965 | FB | 26:43:53 | | Lane J E & Ashdown J J (Paddy) | Royal Marines | 12 | | | | | Tyne |  |
Lane J M | 59.5 | | | 96 | 1 | 0 | 0 | 0 | | |
| 1981 | | 59:29:15 | | Lane J M & Lane Miranda | Royal Navy | 96 | | | | | |  |
Lane Joe | 23.9 | | | 31 | 4 | 0 | 0 | 0 | | |
| 2003 | | 24:36:35 | | Lane Hugh & Lane Joe | Independent | 16 | | | | | |  |
| 2004 | | 23:32:51 | | Lane Hugh & Lane Joe | Exeter | 28 | | | | | |  |
| 2005 | | 23:30:05 | | Lane Hugh & Lane Joe | Exeter | 26 | | | | | |  |
| 2015 | | 23:47:49 | | Lane Joe & Lane Sam | Exeter | 52 | | | | | |  |
Lane Miranda | 59.5 | | | 96 | 1 | 0 | 0 | 0 | | |
| 1981 | | 59:29:15 | | Lane J M & Lane Miranda | Royal Navy | 96 | | | | | |  |
Lane Rebecca | 26.5 | | | 69 | 1 | 0 | 0 | 0 | | |
| 2013 | | 26:30:38 | | Lane Rebecca & Venn Calvin | Royal Logistic Corps | 69 | | | | | |  |
Lane S R | 22.6 | | | 56 | 1 | 0 | 0 | 0 | | |
| 1993 | | 22:39:30 | | Waters Lee J & Lane S R | Royal Marines Reserve - London | 56 | | | | | |  |
Lane Sam | 23.8 | | | 52 | 1 | 0 | 0 | 0 | | |
| 2015 | | 23:47:49 | | Lane Joe & Lane Sam | Exeter | 52 | | | | | |  |
Lane Tim | 25.1 | | | 42 | 1 | 0 | 0 | 0 | | |
| 2006 | | 25:07:06 | | Newland Richard & Lane Tim | Royal Electrical & Mechanical Engineers | 42 | | | | | |  |
Lang D E | 38.8 | | | 25 | 1 | 0 | 0 | 0 | | |
| 1960 | | 38:47:00 | | Hammerton M J & Lang D E | RMA Sandhurst | 25 | | | | | |  |
Lang I R | 22.9 | | | 53 | 1 | 0 | 0 | 0 | | |
| 1989 | | 22:54:32 | | Dawes S R & Lang I R | River Runners | 53 | | | | | |  |
Lang S | 19.4 | | | 20 | 1 | 0 | 0 | 0 | | |
| 1993 | | 19:24:40 | | Bird J & Lang S | Worcester | 20 | | | | | |  |
Langley-Smith G F | 24.6 | | | 17 | 1 | 0 | 0 | 0 | | |
| 1970 | | 24:38:56 | | Langley-Smith G F & Marsh S A | 21 (Artists) | 17 | | | | | |  |
Lanighan Paul | 17.7 | | | 3 | 2 | 0 | 1 | 1 | | |
| 1995 | | 18:08:00 | | Lanighan Paul & Quill Phillip | Falcon & Woodmill | 3 | | | | 1 | Lee |  |
| 2007 | | 17:21:40 | | Hendron Richard & Lanighan Paul | Richmond & Falcon | 2 | | | 1 | | |  |
Lankester T J R | 21.6 | | | 21 | 3 | 0 | 0 | 1 | | |
| 1982 | | 22:43:34 | | Lankester T J R & Newman P J | Maidstone | 46 | | | | | |  |
| 1983 | | 21:03:02 | | Lankester T J R & Anderson J L | Gillingham | 3 | | | | 1 | |  |
| 1997 | | 20:54:43 | | Lankester T J R & Blatchly A Mark | Reading and Leighton Park & Nottingham | 13 | | | | | |  |
Larchet L A | 31.9 | | | 39 | 1 | 0 | 0 | 0 | | |
| 1967 | | 31:52:30 | | Larchet L A & Hunter P | 16th Twickenham & Leander Scouts | 39 | | | | | |  |
Larder J | 47.7 | | | 54 | 1 | 0 | 0 | 0 | | |
| 1961 | | 47:43:30 | | Johnson D & Larder J | Independent | 54 | | | | | |  |
Larnach A | 32.8 | | | 43 | 1 | 0 | 0 | 0 | | |
| 1967 | | 32:50:00 | | Larnach A & Lee H D | RAF West Raynham | 43 | | | | | |  |
Larsen P F | 20.4 | | | 14 | 2 | 0 | 0 | 0 | | |
| 1990 | | 21:12:03 | | Hadberg Aksel & Larsen P F | Hvidovre Kajak klub | 23 | | | | | |  |
| 1991 | | 19:38:41 | | Hadberg Aksel & Larsen P F | Kobenhavns Kajak Kreds | 4 | | | | | Overseas |  |
Larter A J | 19.6 | | | 12 | 2 | 0 | 0 | 0 | | |
| 1979 | | 18:52:14 | | Larter A J & Hodson F J | Royal Electrical & Mechanical Engineers | 11 | | | | | |  |
| 1980 | | 20:14:12 | | Larter A J & Brash T M | Royal Electrical & Mechanical Engineers | 12 | | | | | |  |
Last James | 25.3 | | | 24 | 1 | 0 | 0 | 0 | | |
| 2025 | | 25:18:30 | | Last James & Bell Stuart | Devizes | 24 | | | | | |  |
Last N | 20.4 | | | 23 | 1 | 0 | 0 | 0 | | |
| 1982 | | 20:25:25 | | Hayes Des & Last N | 21 (Artists) | 23 | | | | | |  |
Latham-Boal Helena | 24.3 | | | 14 | 1 | 0 | 0 | 0 | | |
| 2003 | | 24:15:11 | | Drummond John & Latham-Boal Helena | Reading | 14 | | | | | Mixed |  |
Latham J F | 35.7 | | | 101 | 1 | 0 | 0 | 0 | | |
| 1982 | | 35:40:14 | | Latham J F & Brawley A | 266 Bty RA (V) | 101 | | | | | |  |
Latimer B | 22.7 | | | 4 | 1 | 0 | 0 | 0 | | |