 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
Krappe T | 20.6 | | | 26 | 1 | 0 | 0 | 0 | | |
| 1987 | | 20:33:46 | | Krappe T & Vallin E | Rauman Seuden Melojat, Finland | 26 | | | | | |  |
Kreft Brynde | 17.4 | | | 2 | 1 | 0 | 1 | 0 | | |
| 2025 | | 17:21:27 | | Petersen Joe & Kreft Brynde | Banbury & District & Falcon | 2 | | | 1 | | |  |
Kriel Antoinette | 20.6 | | | 17 | 1 | 0 | 0 | 0 | | |
| 2010 | | 20:39:12 | | Bragg Mark & Kriel Antoinette | Integrate Paddling & Greenwich | 17 | | | | | |  |
Krige Christoff | 24.7 | | | 52 | 1 | 0 | 0 | 0 | | |
| 2016 | | 24:42:40 | | Derksen Ewoud & Krige Christoff | Dabulamanzi (South Africa) | 52 | | | | | |  |
Kristensen Martin | 22.0 | | | 27 | 2 | 0 | 0 | 0 | | |
| 2007 | | 22:30:56 | | Andersen Steen & Kristensen Martin | Strommen | 27 | | | | | European |  |
| 2009 | | 21:27:53 | | Kristensen Martin & Svane Pernille | Strommen Denmark | 27 | | | | | |  |
Kruszelnicki Peter | 22.8 | | | 30 | 1 | 0 | 0 | 0 | | |
| 2017 | C2 | 22:49:47 | | Corr Gary & Kruszelnicki Peter | Paddle Sport | 30 | | | | | |  |
Kucerova Jana | 32.8 | | | 96 | 1 | 0 | 0 | 0 | | |
| 2012 | | 32:50:52 | | Henshaw Paul & Kucerova Jana | Independent | 96 | | | | | |  |
Kyte Adam | 20.1 | | | 7 | 1 | 0 | 0 | 0 | | |
| 2006 | | 20:07:12 | | Kelly Christopher & Kyte Adam | Leaside | 7 | | | | | |  |
Kyte G | 48.1 | | | 59 | 1 | 0 | 0 | 0 | | |
| 1978 | C2 | 48:04:00 | | Mees G M & Kyte G | Woolwich | 59 | | | | | |  |
Kyte Patricia Anne | 37.5 | | | 139 | 1 | 0 | 0 | 0 | | |
| 1990 | | 37:28:59 | | Thorne R M & Kyte Patricia Anne | North Avon & Independent | 139 | | | | | |  |
Laban Howard | 27.8 | | | 85 | 1 | 0 | 0 | 0 | | |
| 2013 | C2 | 27:45:25 | | Bateman Warren & Laban Howard | Independent | 85 | | | | | |  |
Labbe C J | 22.8 | | | 57 | 2 | 0 | 0 | 0 | | |
| 1987 | | 23:39:47 | | Mooney S D & Labbe C J | Taunton | 72 | | | | | |  |
| 1988 | | 21:57:45 | | Mooney S D & Labbe C J | Taunton | 42 | | | | | |  |
Lace Toby | 28.7 | | | 90 | 1 | 0 | 0 | 0 | | |
| 2013 | | 28:40:14 | | Higgins James & Lace Toby | Independent | 90 | | | | | |  |
Laenen Jan | 18.0 | | | 4 | 1 | 0 | 0 | 0 | | |
| 2013 | | 17:59:29 | | Laenen Jan & Verduyckt Erik | Independent | 4 | | | | | Overseas |  |
Lake P R | 24.9 | | | 54 | 1 | 0 | 0 | 0 | | |
| 1994 | | 24:56:44 | | Lake P R & Morton D H S | Richmond | 54 | | | | | |  |
Lake Richard | 23.5 | | | 46 | 1 | 0 | 0 | 0 | | |
| 2015 | | 23:27:02 | | Wareham Mark & Lake Richard | Devizes | 46 | | | | | |  |
Laker G | 27.7 | | | 83 | 1 | 0 | 0 | 0 | | |
| 1982 | | 27:40:19 | | Hodgson M & Laker G | HMS Pembroke (RN) | 83 | | | | | |  |
Laker Martin | 23.7 | | | 44 | 1 | 0 | 0 | 0 | | |
| 2007 | | 23:43:58 | | Laker Martin & Wilson Adam | Royal Engineers | 44 | | | | | |  |
Lamb P K | 23.1 | | | 58 | 1 | 0 | 0 | 0 | | |
| 1993 | | 23:05:30 | | Lawson C M & Lamb P K | Metropolitan Police | 58 | | | | | |  |
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 | | | | | |  |