2015, Relay, Inverness, Scotland

Long: 34. place 2010, Trondheim, Norway
Middle: 54. place 2016, Stromstad, Sweden
Sprint: Q16. place 2010, Trondheim, Norway
Relay: 21. place 2015, Inverness, Scotland
MixedRelay: 24. place 2015, Inverness, Scotland

WC Overall 2005

2023, MixedRelay, Trentino - Veneto, Italy

Middle: 66. place 2014, Palmela, Portugal
Sprint: Q36. place 2023, Trentino - Veneto, Italy
MixedRelay: 19. place 2023, Trentino - Veneto, Italy

2009, Long, Salo, Finland

Long: 48. place 2009, Salo, Finland
Middle: 67. place 2009, Salo, Finland

2010, WC no. 8, Trondheim, NOR, Long, WOC

2002, Relay, Alicante, Spain

Long: 54. place 2003, Põlva, Estonia
Relay: 20. place 2002, Alicante, Spain

Individual results:
2007: Springcup, 83. place
Relays:
2010: Venla 2010, 109. place (4. leg, Out: 74. place, In: 109. place, IFK Lidingö SOK 2)

IOF World Ranking:
World Ranking position: Middle/Long 1529 / Sprint 231 (as of 21/12/2024)
See also all IOF WRE results for Niamh O'Boyle including updated WR position