Guillermo Hormazábal

Guillermo Hormazábal (; born 5 February 1985) is a former Chilean professional tennis player. In 2001, he became an under 16's world champion.

ATP Challenger & ITF Futures

Singles titles (15) LegendATP Challenger SeriesITF Futures Series (14)

No.DateTournamentSurfaceOpponentScore 1. 17 October 2004 Chile F5, Chile Clay Pablo Galdón 7–6, 7–5 2. 12 November 2007 Chile F5, Chile Clay Gaston Arturo Grimolizzi 6–0, 6–4 3. 2 June 2008 Poland F4, Poland Clay Grzegorz Panfil 6–1, 7–5 4. 17 July 2008 Italy F4, Italy Clay Matteo Viola 6–4, 3–6, 6–4 5. 2 February 2009 Colombia F1, Colombia Clay Alejandro González 6–7, 6–1, 6–4 6. 13 July 2009 Italy F19, Italy Clay Simone Vagnozzi 7–5, 6–0 7. 3 May 2010 Italy F7, Italy Clay Daniel Evans 5–7, 6–3, 6–4 8. 25 October 2010 Chile F2, Chile Clay Guillermo Rivera-Aránguiz 7–5, 6–2 9. 29 November 2010 Chile F7, Chile Clay Nicolas Pastor 6–4, 6–3 10. 3 October 2011 Chile F7, Chile Clay Laurent Recouderc 7–5, 6–2 11. 10 October 2011 Chile F8, Chile Clay Hans Podlipnik-Castillo 6–2, 6–1 12. 17 October 2011 Chile F9, Chile Clay Cristóbal Saavedra-Corvalán 6–2, 6–0 13. 30 October 2011 Chile F11, Chile Clay Cristóbal Saavedra-Corvalán 6–4, 4–6, 6–2 14. 13 February 2012 Chile F1, Chile Clay Jorge Aguilar 6–3, 3–6, 6–3 15. 9 June 2012 Italy F12, Italy Clay Andrea Arnaboldi 6–2, 5–7, 6–3

Singles runner-up (10) No.DateTournamentSurfaceOpponentScore 1. 14 August 2006 Poland F9, Poland Clay David Novak 6–1, 3–6, 3–6 2. 23 October 2006 Chile F1, Chile Clay Iván Miranda 4–6, 6–7 3. 20 November 2006 Chile F5, Chile Clay Jonathan Gonzalia 2–6, 6–7 4. 5 November 2007 Chile F4, Chile Clay Marin Bradaric 4–6, 6–1, 3–6 5. 24 April 2008 Italy F11, Italy Clay Stefano Ianni 6–3, 3–6, 4–6 6. 6 June 2008 Poland F2, Poland Clay Grzegorz Panfil 6–3, 1–6, 4–6 7. 1 January 2009 Challenger ATP Iquique, Chile Clay Máximo González 4–6, 4–6 8. 6 December 2010 Chile F8, Chile Clay Borut Puc 2–6, 7–6, 6–7 9. 11 April 2011 Chile F3, Chile Clay Guillaume Rufin 4–6, 2–6 10. 24 October 2011 Chile F10, Chile Clay Cristóbal Saavedra-Corvalán 3–6, 6–2, 4–6