|Full name||Jon Irazustabarrena Lizarralde|
|Date of birth||30 April 1986|
|Place of birth||Usurbil, Spain|
|Height||1.83 m (6 ft 0 in)|
|2003–2004||Real Sociedad B||3||(0)|
|2007–2008||Real Sociedad B||1||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 29 October 2017.
Born in Usurbil, Gipuzkoa, Txusta graduated from Real Sociedad's youth system, and made his debuts with the reserves in the 2003–04 season, in Segunda División B. In 2005, he signed for neighbouring SD Beasain from Tercera División.
In the summer of 2007, Txusta was recalled by Sanse, but after being sparingly used he returned to Beasain in July 2008. In August 2009 he joined another reserve team, SD Eibar B also in the fourth level; he remained in that tier for the following three years, representing CD Lagun Onak and Beasain.
On 31 May 2014, as the Basque side were already promoted to La Liga, 28-year-old Txusta played his first match as a professional, starting in a 1–0 home win against CD Lugo. Roughly a month later, he renewed his contract for a further year.
- El Beasain se presentó e inició la pretemporada (Beasain presented and started preseason); El Diario Vasco, 15 July 2008 (in Spanish)
- Gipuzkoako jokalariekin osatu du aurten taldea Beasainek (Gizpuokan players in Beasain squad); Beasaingo Hitza, 20 July 2011 (in Basque)
- Txusta era nuestra primera opción, destaca Fran Garagarza (Txusta was our first option, Fran Gargaza stresses); El Diario Vasco, 29 January 2013 (in Spanish)
- El Eibar regresa a Segunda (Eibar return to Segunda); El Correo, 30 June 2013 (in Spanish)
- El Eibar quiere ser campeón (Eibar want to be champion); Marca, 31 May 2014 (in Spanish)
- Jon Irazusta renueva por una temporada (Jon Irazusta renews for a season); SD Eibar, 30 June 2014 (in Spanish)
- 'Txusta' apuntala la portería del Real Unión ('Txusta' bolsters Real Unión's goal); Vavel, 15 July 2015 (in Spanish)
- Jon Irazustabarrena “Txusta” ficha por el Barakaldo (Jon Irazustabarrena "Txusta" signs for Barakaldo); Barakaldo CF, 6 July 2016 (in Spanish)