He supplied the pass for Iván Kaviedes' goal that clinched Ecuador's first World Cup qualification, one moment from fourteen years and 476 games at Necaxa, a club that has since retired his number 7. Three Mexican league titles with Necaxa, the 1999 CONCACAF Champions' Cup, the 1995 Copa México, third place at the 2000 Club World Championship, and 109 caps with 23 goals for Ecuador between 1987 and 2004. Career record: 109 caps and 23 goals for Ecuador; club career at S.D. Quito, Club Necaxa, Liga Deportiva Universitaria de Quito.
| 1984–1989 | S.D. Quito |
| 1989–2003 | Club Necaxa |
| 2003–2004 | Cruz Azul |
| 2004–2005 | Liga Deportiva Universitaria de Quito |
| Ecuador | 109 caps, 23 goals |
Ecuador legends whose careers overlapped Aguinaga's
One rank above: Willian Pacho at #3.
One rank below: Enner Valencia at #5.
Ecuador's editorial top five: Alberto Spencer · Antonio Valencia · Willian Pacho · Álex Aguinaga · Enner Valencia.