1953: Born September 16, Santiago, Chile.
1973: Signs as a professional footballer with Universidad Chile - the only club he will play for.
1979: Graduates from Pontifical Catholic University as a civil engineer.
1986: Retires after over 450 appearances for Universidad and 28 appearances for his country.
1988: Takes over as Universidad's manager but they are relegated to the second division.
1990: Joins the Chile coaching staff under Arturo Salah.
1991: Becomes manager of Palestino.
1992: Moves to O'Higgins.
1994: Starts a two-year spell at Universidad Catolica.
1998: Heads back to Palestino for a year.
1999: As manager of Ecuadorian side LDU Quito he wins the national title.
2001: Moves to San Lorenzo in Argentina and wins the Clausura title as well as the Copa Mercosur.
2002: Moves to River Plate and wins the Clausura with them in 2003.
2004: Recruited by Villarreal - his first European job. Wins the Intertoto Cup.
2006: Lose to Arsenal in the semi-finals of the Champions League.
2008: Finish a club-high second in the Primera Division.
2009: Moves to Real Madrid on a two-year contract. He oversaw the purchases of Karim Benzema, Kaka and Cristiano Ronaldo.
July 20: Criticised by president Florentino Perez for the style of play employed in a 1-0 friendly win over Shamrock Rovers.
October 27: Knocked out of the Copa del Rey by Segunda B side Alcorcon.
2010: March - Knocked out of the Champions League by Lyon. Perez responded by telling Pellegrini he would be sacked if Real did not win the title.
May: Madrid took 96 points but still lost out on the title to Barcelona. Pellegrini was sacked and replaced by Jose Mourinho.
July: Offered the Mexico job but chooses to remain in Spain with Malaga on a three-year deal.
2011: Takes Malaga to fourth and a club high 58 points.
2013: Lose in the quarter-finals of the Champions League to Borussia Dortmund, conceding two injury-time goals.
June 1: Takes charge of Malaga for the final time as they go down to a 4-1 defeat by champions Barcelona.
June 14: Confirmed as manager of Manchester City.