Tonga has competed in the World Athletics Championships six times with their first appearance being in 1983 at Helsinki, Finland with Georges Taniel competing in the men's 100m. As of 2019, the country has not recorded any medals. Tonga best performance was in 1983 when Niulolo Pelesikoti placed eighteenth in the Men's decathlon.IAAF World Athletics Championships Doha 2019 - Statistics Handbook. IAAF (2019). Retrieved 1 October 2019.
Entrants AthleteEventChampionshipsNiulolo PelesikotiMen's decathlon1983Homelo ViMen's decathlon1991 Lusia PuleangaWomen's 100 metres1991, 1993Women's 200 metres1993Toluta'u KoulaMen's 100 metres1995, 1997 Siulolo LikuWomen's long jump1995, 1997Women's 100 metres1999Sesi SaltMen's 100 metres2001 Ana PouhilaWomen's 100 metres2001Women's shot put2003, 2005, 2007, 2009Aisea TohiMen's 100 metres2007, 2009Joseph Andy LuiMen's 100 metres2011Belinda TalakaiWomen's 100 metres2011Siueni FilimoneMen's 100 metres2013La Shondra David Mosa'atiMen's 100 metres2015Ronald Lawrence FotofiliMen's 100 metres2019
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