The Jan Kjellström International Orienteering Festival or "JK" is the premier domestic orienteering competition in the United Kingdom along with the British Orienteering Championships, usually held over the Easter Weekend.

1967 saw the first JK event, held in memory of Jan Kjellström. The annual JK moved to Easter in 1969, and now regularly attracts a field of four thousand or more. The 1974 JK was the first British race to attract more than one thousand entrants.http://www.athleticscholarships.net/other-sports-orienteering-3.htm (Retrieved on 14 October 2008) The JK Trophy is awarded to the winning team in the Men's Premier relay class.http://owiki.nopeindustries.com/index.php?title=JK(Retrieved on 17 October 2008)

Races Year Region Friday Saturday Sunday Monday 1967 SEOA - Individual, Hindhead Common ? - 1968The Orienteer, July 1968, Vol. 1, No. 2. SEOA - Individual, Haslemere - - 1969The Orienteer, April 1969, Vol. 2, No. 1. NEOA - Individual, Kielder Forest Relay, Kielder Forest (Lewisburn Area) - 1970The Orienteer, Jan 1970, Vol. 2, No. 4. EMOA - Individual, Clumber Park Relay, Shining Cliff - 1971The Orienteer, Jan 1971, Vol. 3, No. 4.The Orienteer, Jun 1977, Vol. 10, No. 3.The Orienteer, June 1981, Vol. 14, No. 3. SEOA Training, Ranmore Common Relay, Holmbury Hill Individual, Leith Hill Combined Harvester Race, Lower Bourne 1972The Orienteer, Jan 1972, Vol. 4, No. 4. WMOA Training, Staffordshire Individual, Cannock Chase Park Relay, Beaudesert Warm down, Lea Wood 1973The Orienteer, Mar 1973, Vol. 6, No. 2. SOA Training, Loch Ard Individual, South Achray Relay, North Achray Warm down, Balmaha 1974The Orienteer, Feb 1974, Vol. 7, No. 1. SWOA Training, Speech House Oaks, Forest of Dean Individual, Speech House Oaks, Forest of Dean Relay, Brierley South, Forest of Dean Warm down, Forest of Dean 1975 SCOA Training, N.W. Surrey Individual, Star Posts, Bracknell Relay, Hawley and Hornley Warm down, Star Posts 1976The Orienteer, Dec 1975, Vol. 8, No. 6. NWOA Training, Western Lake District Individual, Dalegarth, Eskdale Relay, Dalegarth West, Eskdale Warm down, Dalegarth West, Eskdale 1977The Jan Kjellstrom Trophy 1977, entry formThe Orienteer, June 1977, Vol. 10, No. 3. SEOA Training, Lower Bourne Forest Individual, Leith Hill Relay, Eartham Wood Warm down, Mytchett Common 1978The Jan Kjellstrom Trophy 1978, entry formThe Orienteer, June 1978, Vol. 11, No. 3. YHOA Training, Rivelin Individual, Wharncliffe and Grenoside Relay, Strines Warm down, Hope Woodlands 1979The Orienteer, June 1979, Vol. 12, No. 3. SWOA Training, Fernworthy Forest, Dartmoor Individual, Fernworthy Forest, Dartmoor Relay, Bramble Brook Warm down, Quantock Forest South 1980The Orienteer, June 1980, Vol. 13, No. 3.Compass Sport, 1980, No. 3. SOA Training, Mark Hill Day 1, Dalbeattie Forest Day 2, Laurieston Relay, Mabie Forest 1981 WMOA Training, Lizard Hill and the Gallops, Lickey Hills (2 available)JK81 Program Day 1, Beaudesert Park, Cannock Chase Relay, Bishop's Wood Day 2, Beaudesert Park, Cannock Chase 1982 SCOA - Day 1, Star Posts Day 2, Star Posts Relay, Yateley Heath 1983 NWOA - Day 1, Rusland & Finsthwaite Heights Day 2, Finsthwaite & Stott Park Heights Relay, Ulpha Park 1984Compass Sport & The Orienteer, 1984, Vol 5. No. 2. WOA Training, Hafod Gwenllian Day 1, Moel y Dyniewyd Day 2, Braich Bryn Relay, Clogwyn Mawr 1985 NEOA Training, Beanley Day 1, Kyloe Day 2, Kyloe Relay, Callaly 1986Compass Sport & The Orienteer, 1986, Vol 7. No. 3. EAOA Training, Rishbeth and Warren Wood Day 1, Brandon Park, Thetford Day 2, Pretty Corner (Beeston Regis / Felbrigg) Relay, Brandon Park, Thetford 1987Compass Sport & The Orienteer, 1987, Vol 8. No. 3. YHOA Training, Raincliffe Woods Day 1, Newtondale Day 2, Barns Cliff Relay, Cawthorne Banks 1988Compass Sport & The Orienteer, 1988, Vol 9. No. 2. SEOA Training, Selhurst Park Day 1, Charlton Forest Day 2, Charlton Forest Relay, Longmoor 1989Compass Sport & The Orienteer, 1989, Vol 10. No. 2. SWOA Training, Gare Hill Day 1, Longleat Day 2, Stourhead Relay, Stock Hill 1990 SOA - Day 1, Creag Vinean Day 2, Craig a' Barns Relay, Devilla Forest 1991 EMOA Training, Cromford Moor and Black Rock Day 1, Clumber Park Day 2, Shining Cliff Relay, Clumber Park 1992 NWOA - Day 1, Bigland Tarn Day 2, Bigland & Backbarrow Relay, Bigland Tarn 1993Compass Sport & The Orienteer, 1993, Vol 14. No. 1. SCOA Training, Burghfield Common Day 1, Woolmer & Longmoor Day 2, Long Valley Relay, Highclere 1994Compass Sport & The Orienteer, 1994, Vol 15. No. 1. WMOA Training, Garway Day 1, Garnstone & Foxley Day 2, Pyon and Dinmore Relay, Big Wood 1995 YHOA Training, Guisecliffe Wood Day 1, Wass Forest Day 2, Kilnsey Moor Relay, Gilling Woods 1996 NEOA - Day 1, Coate Moor Day 2, Mulgrave Woods Relay, Snotterdale 1997Compass Sport & The Orienteer, 1997, Vol 18. No. 2. SWOA Training, The Towans South, and Killerton Park Day 1, Penhale Sands Day 2, Penhale Sands Relay, Lanhydrock 1998Compass Sport & The Orienteer, 1998, Vol 19. No. 1 (and Vol. 19 No. 2). WOA Training, Planta Fawr & Foel Offrwm Day 1, Dolgledr Day 2, Tir Stent Relay, Garthwyllt 1999Compass Sport & The Orienteer, 1999, Vol 20. No. 2. SEOA Training, Redlands, Dorking Day 1, Leith Hill Day 2, Winterfold Forest Relay, Hawley & Homley 2000http://www.btinternet.com/~coombs.five/Maronews/(Retrieved on 17 October 2008) SOA - Day 1, Drumbuie and Craig a'Barns Day 2, Loch Rannoch Relay, Tullochroisk 2001http://www.happyherts.org.uk/pacemaker/march_2001/foot_and_mouth.htm (Retrieved on 17 October 2008) Races cancelled due to outbreak of foot and mouth disease 2002Compass Sport, 2002, Vol 23. No. 1, Page 26. SWOA Training, Sallowvallets Day 1, Lydney Park, Lydney Day 2, Moseley Green, Blakeney Relay, Lydney Park, Lydney 2003Compass Sport, 2003, Vol 24. No. 1, Page 23. SCOA - Day 1, Hambleden Day 2, Star Posts Relay, Hambleden 2004http://www.sroc.org/jk2004.html(Retrieved on 17 October 2008) NWOA/EMOA Training, Simpson Ground Day 1, Graythwaite, Ulverston Day 2, Graythwaite, Ulverston Relay, Graythwaite, Ulverston 2005http://www.butlercole.plus.com/mn/jk2005/ (Retrieved on 17 October 2008) WMOA Training, Tackeroo Day 1, Brown Clee Hill Day 2, Abraham's Valley Relay, Hopwas 2006 http://www.sloweb.org.uk/news/jk06.htm(Retrieved on 17 October 2008) YHOA Sprint, Temple Newsam Day 1, Ilkley Moor Day 2, Keldy (formerly known as Cropton & Cawthorne) Relay, Bramham Park 2007http://www.jk2007.org.uk/ (Retrieved on 16 October 2008) BOF Sprint, University of West of England, Bristol Day 1, Speech House West, Forest of Dean Day 2, Speech House East, Forest of Dean Relay, MoD Caerwent, Chepstow 2008http://www.jk2008.org.uk/ (Retrieved on 16 October 2008) SEOA Sprint, University of Surrey, Guildford Day 1, Leith Hill Day 2, Ashdown Forest Relay, Eridge Park 2009http://www.jk2009.org.uk/ (Retrieved on 16 October 2008) NEOA Sprint, Newcastle City Day 1, Kyloe Woods Day 2, Detchant, Shiellow, Greensheen Hill & Cockenhaugh Relay, Dipton Woods 2010 SWOA Sprint, Bicton / Exeter University Day 1, Cookworthy Forest Day 2, Braunton Burrows Relay, Braunton Burrows 2011(Retrieved on 9 January 2010) NIOA Sprint, Stranmillis University College and Queens Elm Village Day 1, Tyrella Day 2, Slieve Croob Relay, Tyrella 2012(Retrieved on 2 April 2012) SOA Sprint, Livingston Day 1, Dunalastair Day 2, Craig a Barns, Dunkeld Relay, Newtyle 2013jk2013 website(Retrieved on 27 December 2012) SCOA Sprint, University of Reading (Whiteknights Campus) Day 1, Hambleden Day 2, Cold Ash Relay, Hambleden 2014jk2014 website (Retrieved on 25 November 2014) WOA Sprint, Swansea University Day 1, Merthyr Common Day 2, Llangynidr Relay, Pwll Du 2015jk2015 website (Retrieved on 25 November 2014) NWOA Sprint, Lancaster University Day 1, Ulpha Park and Barrow Fell Day 2, Bigland Relay, Colonel's Drive, Graythwaite 2016jk2016 website (Retrieved on 25 November 2016) YHOA Sprint, Leeds University Day 1, Wass Forest Day 2, Kilnsey Moor Relay, Storthes Hall 2017jk2017 website (Retrieved on 30 March 2017) SEOA Sprint, Brunel University Day 1, Ambersham Common Day 2, Holmbush and St Leonard's Relay, Pippingford Park2018 WMOA Sprint, MoD Stafford Day 1, Brereton Spurs Day 2, Beaudesert Relay, Beaudesert2019 SCOA Sprint, Aldershot Garrison Day 1, Windmill Hill, Deepcut Day 2, Cold Ash Relay, Minley 2020 Races cancelled due to outbreak of COVID-1920212022 WOA Sprint, Swansea University Day 1, Clydach Terrace Day 2, Pwll Du Relay, Caerwent2023 NWOA Sprint, Lancaster University Day 1, High Dam Day 2, Bigland Estate Relay, Dale Park2024 WMOA Sprint, Loughborough University Day 1, Beaudesert Day 2, Beaudesert Relay, Stanton Moor2025YHOASprint, Sheffield city centreMiddle, TankersleyLong, WharncliffeRelay, Middleton Park

Race footnotes JK69. The race was held in NEOA but organised by NWOA. JK69. The Relay was to have been held at Slaley but had to be cancelled due to snow. The race was moved to Kielder Forest, Lewisburn Area. JK74. This race was the first British race to attract more than one thousand competitors. JK81. For this year only, the Relay was held on the Sunday i.e. between the two individual days. JK89. At this race there were two deaths. On the Saturday Swedish visitor Stig Gorman (58) of Mariestad died within sight of the finishing line; and on the Sunday Martin Cochrane (81) of Sarum Orienteers died shortly after starting the Orange colour-coded course. JK98. On the Sunday the courses using the Red start were cancelled due to snow. This decision led to a controversy which was discussed in Compass Sport & The Orienteer and also at British Orienteering Federation (BOF) National Office.Compass Sport & The Orienteer, 1998, Vol. 19 No. 2. JK2001. The whole weekend of races was cancelled due to an outbreak of foot and mouth disease. JK2006. A sprint race was introduced at this competition on the Friday, in addition to the usual Training opportunity. This was an attempt to make the sport more 'spectator friendly' and was part of the International Orienteering Federation's proposal to make the sport an Olympic sport. JK2020 & 2021. The whole weekend of races was cancelled due to an outbreak of COVID-19. Races were to be held by NEOA for 2020 & SWOA for 2021 before cancellation. See COVID-19 pandemic in the United Kingdom for more details. JK2024. The women's elite race was declared void on Day 1 at Beaudesert. The overall result was based solely on the Day 2 race.

Elite Class Champions