2007, Sprint, Kiev, Ukraine

Sprint: Q19. place 2007, Kiev, Ukraine

WC Overall 2009

2012, Sprint, Falun, Sweden

Sprint: Q2. place 2012, Falun, Sweden

2009, Relay, Salo, Finland

Long: 25. place 2007, Bornholm, Denmark
Middle: 13. place 2009, Salo, Finland
Sprint: 9. place 2009, Salo, Finland
Relay: 5. place 2009, Salo, Finland

2009, WC no. 2, Salo, FIN, Sprint, NOC

Individual results:
2006: Springcup, 88. place
Relays:
2012: Jukola 2012, 3. place (1. leg, 2. place, Halden SK)
2012: Jukola 2012, 2. place (2. leg, Out: 16. place, In: 4. place, Malungs OK Skogsmårdarna)
2011: Jukola 2011, 30. place (7. leg, Out: 40. place, In: 30. place, Bäkkelagets SK)
2011: Jukola 2011, 146. place (4. leg, Out: 204. place, In: 155. place, Växjö OK)
2010: Jukola 2010, 24. place (3. leg, Out: 24. place, In: 4. place, IK Hakarpspojkarna)
2010: Jukola 2010, 1. place (4. leg, Out: 1. place, In: 1. place, Halden SK)
2009: Jukola 2009, 36. place (3. leg, Out: 29. place, In: 21. place, IK Hakarpspojkarna)
2008: Jukola 2008, 5. place (6. leg, Out: 4. place, In: 3. place, Halden SK)
2008: Jukola 2008, 21. place (7. leg, Out: 25. place, In: 21. place, IK Hakarpspojkarna)
2007: Jukola 2007, 2. place (5. leg, Out: 8. place, In: 4. place, Halden SK)
2005: Jukola 2005, 61. place (3. leg, Out: 25. place, In: 39. place, OK Linne 2)
2004: Jukola 2004, 54. place (6. leg, Out: 50. place, In: 55. place, OK Linne)

IOF World Ranking:
World Ranking position: Middle/Long 2348 (as of 22/12/2024)
See also all IOF WRE results for Mattias Karlsson including updated WR position