 | | | | Av Time | | | Place | Races | 1st | 2nd | 3rd | Trophies | |
|---|
 Hynds Scott | 21.0 | | | 12 | 1 | 0 | 0 | 0 | | |
| 2005 | | 21:02:21 | | Hynds Claire & Hynds Scott | Elmbridge | 12 | | | | | | |
| Hystek Tony | 19.7 | | | 5 | 1 | 0 | 0 | 0 | | |
| 2014 | | 19:43:21 | | Hystek Tony & Robinson Richard | International | 5 | | | | | Overseas | |
| Iles E G | 19.5 | | | 14 | 1 | 0 | 0 | 0 | | |
| 1987 | | 19:30:53 | | Iles E G & Mayo K A | Independent | 14 | | | | | | |
| Iles R | 37.2 | | | 30 | 1 | 0 | 0 | 0 | | |
| 1962 | | 37:14:15 | | Holland P & Iles R | Malmesbury Youth Club | 30 | | | | | | |
| Ilett Peter | 23.3 | | | 27 | 1 | 0 | 0 | 0 | | |
| 2012 | | 23:20:45 | | Ilett Peter & Parker Rebecca | Nottingham | 27 | | | | | | |
| Imamzade Z | 45.6 | | | 55 | 1 | 0 | 0 | 0 | | |
| 1971 | | 45:37:24 | | Lloyd C P & Imamzade Z | RAF Abington | 55 | | | | | | |
| Imber Oliver | 24.5 | | | 49 | 1 | 0 | 0 | 0 | | |
| 2016 | | 24:30:16 | | Imber Oliver & Wood Richard | Army Canoe Union | 49 | | | | | | |
| Impey Vanessa | 24.2 | | | 51 | 1 | 0 | 0 | 0 | | |
| 2019 | | 24:11:07 | | Impey Vanessa & Mavra Boris | Richmond | 51 | | | | | | |
| Ince A J | 20.7 | | | 10 | 11 | 0 | 0 | 0 | | |
| 1972 | | 21:46:40 | | Pierce W N & Ince A J | 21 (Artists) | 14 | | | | | | |
| 1973 | | 23:17:16 | | Ince A J & Simpson C A | 21 (Artists) | 13 | | | | | | |
| 1975 | | 22:07:00 | | Ince A J & K1 Single | Independent | 0 | | | | | | |
| 1977 | | 19:41:00 | | Ince A J & Sage J W | 21 (Artists) | 7 | | | | | Reserve | |
| 1978 | | 20:10:44 | | Ince A J & Sage J W | 21 (Artists) | 12 | | | | | Reserve | |
| 1980 | | 19:34:20 | | Ince A J & Golder Roy | 21 (Artists) | 8 | | | | | | |
| 1991 | | 20:08:40 | | Fielden Paul & Ince A J | Wokingham Scouts & Northampton | 7 | | | | | | |
| 1997 | | 22:00:32 | | Ince A J & Black Dave | Artists Rifles | 27 | | | | | | |
| 1998 | | 19:10:08 | | Howie David & Ince A J | Artists Rifles | 7 | | | | | | |
| 2005 | | 20:27:49 | | Ince A J & Dawkins Russ | Artists Rifles & Richmond | 8 | | | | | | |
| 2007 | | 19:14:01 | | Ince A J & Neale Clive | Tonbridge | 6 | | | | | | |
| Ingram B | 36.1 | | | 36 | 1 | 0 | 0 | 0 | | |
| 1970 | | 36:06:03 | | Ingram B & Buck J | Woking Adventure Club | 36 | | | | | | |
| Ingram C P | 32.7 | | | 102 | 1 | 0 | 0 | 0 | | |
| 1993 | | 32:41:30 | | Russell Jack & Ingram C P | St. Mark & St. John College | 102 | | | | | | |
| Ingram Graham | 32.4 | | | 58 | 2 | 0 | 0 | 0 | | |
| 2002 | | 36:00:27 | | Ingram Graham & McGowan Andrew | 8 Sig.Regt & Independent | 79 | | | | | | |
| 2003 | | 28:43:37 | | Ingram Graham & Shaw Oliver | 3 Div Signal Regt & City Of London Police | 36 | | | | | | |
| Inns S L | 23.2 | | | 63 | 3 | 0 | 0 | 0 | | |
| 1987 | | 24:36:38 | | Edwards A A & Inns S L | Aylesbury | 88 | | | | | | |
| 1988 | | 23:16:55 | | Inns S L & Edwards A A | Aylesbury | 63 | | | | | | |
| 1989 | | 21:51:19 | | Jarvis R D & Inns S L | Milton Keynes | 38 | | | | | | |
| Inocco Ryan | 25.1 | | | 65 | 1 | 0 | 0 | 0 | | |
| 2014 | | 25:05:31 | | Inocco Ryan & Styles Tom | Marlow | 65 | | | | | | |
| Inskip D J | 29.4 | | | 87 | 2 | 0 | 0 | 0 | | |
| 1992 | | 34:51:55 | | Inskip D J & Dawson A | Stonehenge | 107 | | | | | | |
| 1993 | | 24:00:40 | | Heath Roger & Inskip D J | Stonehenge | 67 | | | | | | |
| Ironside J | 33.4 | | | 16 | 1 | 0 | 0 | 0 | | |
| 1962 | | 33:23:45 | | Britton G & Ironside J | RAF South Cerney | 16 | | | | | | |
| Irvine Brett | 20.6 | | | 17 | 1 | 0 | 0 | 0 | | |
| 2009 | | 20:38:04 | | Irvine Brett & Pople Claire | Richmond | 17 | | | | | | |
| Irvine J | 18.2 | | | 4 | 1 | 0 | 0 | 0 | | |
| 1998 | | 18:11:56 | | Vaughan K T & Irvine J | Royal Engineers | 4 | | | | | Army,Services | |
| Irving J | 25.1 | | | 32 | 1 | 0 | 0 | 0 | | |
| 1996 | | 25:04:30 | | Irving J & Bayles J | Royal Engineers | 32 | | | | | | |
| Irwin Gareth | 20.8 | | | 10 | 1 | 0 | 0 | 0 | | |
| 2013 | | 20:49:04 | | Lay Christopher & Irwin Gareth | Army Canoe Union | 10 | | | | | Army,Services | |
| Irwin William | 25.1 | | | 69 | 1 | 0 | 0 | 0 | | |
| 2015 | | 25:03:31 | | Irwin William & O Hanrahan Feargal | Wwkc Ireland | 69 | | | | | | |
| Isaac Jason | 19.2 | | | 4 | 1 | 0 | 0 | 0 | | |
| 2004 | | 19:10:49 | | Dunn Stuart & Isaac Jason | Leaside | 4 | | | | | | |
| Ivall S | 25.1 | | | 38 | 1 | 0 | 0 | 0 | | |
| 1997 | | 25:09:02 | | Ivall S & Warren B | Independent | 38 | | | | | | |
| Ivanics Casaba | 22.1 | | | 21 | 1 | 0 | 0 | 0 | | |
| 2013 | | 22:05:19 | | Ivanics Casaba & Lenart Jozsef | Ealing & Cardiff Bay Kayakers | 21 | | | | | | |
| Ive P S | 27.4 | | | 54 | 1 | 0 | 0 | 0 | | |
| 1997 | | 27:21:29 | | Pentland M J P & Ive P S | Independent | 54 | | | | | | |
| Ives Tim | 22.9 | | | 22 | 11 | 0 | 0 | 0 | | |
| 1996 | | 36:31:10 | | Ives Tim & Lyle I C | Manchester & Salford University OTC | 60 | | | | | | |
| 2002 | | 21:29:52 | | Ives Tim & Blessley Iain | RMA Sandhurst | 15 | | | | | | |
| 2003 | | 24:02:03 | | Cheeseman Guy & Ives Tim | Royal Engineers | 13 | | | | | | |
| 2013 | FB | 26:08:59 | | Martell Charles & Ives Tim | Army Canoe Union | 65 | | | | | | |
| 2014 | | 20:45:25 | | Ives Tim & Lawson Iain | Army Canoe Union | 14 | | | | | | |
| 2017 | | 20:12:59 | | Lay Christopher & Ives Tim | Royal Engineers | 9 | | | | | | |
| 2019 | | 20:50:49 | | Ives Tim & Lawson Iain | Army | 15 | | | | | Army | |
| 2023 | | 19:42:40 | | Ives Tim & Lawson Iain | RE | 18 | | | | | Army,Services | |
| 2026 | | 20:47:21 | | Ives Tim & Lawson Iain | Recc | 12 | | | | | | |
| 2026 | | 20:47:21 | | Ives Tim & Lawson Iain | Recc | 12 | | | | | | |
| 2026 | | 20:47:21 | | Ives Tim & Lawson Iain | Recc | 12 | | | | | | |
| Ives Tim (Teddington) | 18.8 | | | 11 | 1 | 0 | 0 | 0 | | |
| 2022 | | 18:50:02 | | Ives Tim & Lawson Iain | Royal Engineers | 11 | | | | | Army | |
| Ivey R | 37.4 | | | 39 | 1 | 0 | 0 | 0 | | |
| 1973 | | 37:25:25 | | Moore R & Ivey R | | 39 | | | | | | |
| Ivil A M | 42.0 | | | 27 | 1 | 0 | 0 | 0 | | |
| 1960 | | 41:57:00 | | Hutchison J & Ivil A M | 10 Para | 27 | | | | | | |
| Jackman R W | 36.0 | | | 53 | 1 | 0 | 0 | 0 | | |
| 1998 | | 36:02:24 | | Jackman R W & Goodwin A P L | Independent | 53 | | | | | | |
| Jacks P | 22.1 | | | 25 | 3 | 0 | 0 | 0 | | |
| 1995 | | 23:59:15 | | Jacks P & Wilson I P | Independent | 43 | | | | | | |
| 1997 | | 21:42:44 | | Wilson I P & Jacks P | Harlow Outdoor Pursuits | 23 | | | | | | |
| 1999 | | 20:38:50 | | Wilson I P & Jacks P | Harlow Outdoor Pursuits | 9 | | | | | | |
| Jackson A | 22.0 | | | 25 | 2 | 0 | 0 | 0 | | |
| 1990 | | 20:17:23 | | Marsland D & Jackson A | Royal Engineers | 13 | | | | | | |
| 1999 | | 23:44:56 | | Jackson A & Humphries P | 1 Para | 37 | | | | | | |
| 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 | | | | | | |