2009, Long, Salo, Finland

Long: 19. place 2009, Salo, Finland
Middle: 30. place 2009, Salo, Finland
Sprint: 30. place 2009, Salo, Finland

Relays:
2012: Jukola 2012, 117. place (7. leg, Out: 139. place, In: 117. place, Ylistaron Kilpa-Veljet)
2011: Jukola 2011, 75. place (1. leg, 102. place, Ylistaron Kilpa-Veljet)
2010: Jukola 2010, 42. place (3. leg, Out: 13. place, In: 29. place, Ylistaron Kilpa-Veljet)
2009: Jukola 2009, 94. place (1. leg, 81. place, Ylistaron Kilpa-Veljet)
2008: Jukola 2008, 74. place (1. leg, 94. place, Ylistaron Kilpa-Veljet)
2005: Jukola 2005, 93. place (6. leg, Out: 140. place, In: 117. place, Ylistaron Kilpa-Veljet)

IOF World Ranking:
World Ranking position: Middle/Long 2239 (as of 23/2/2025)
See also all IOF WRE results for Tuomo Istolahti including updated WR position