Tenorio began his club career with
LDU Quito in the
Ecuadorian Serie B, helping them regain promotion to Serie A in the 2001 season by topping the division with Tenorio scoring 11 league goals. In 2003, Tenorio won the Serie A title with LDU Quito.
Blackburn Rovers and
Wolverhampton Wanderers were interested in buying Tenorio, but LDU refused, believing Tenorio was inexperienced. Afterwards he joined Saudi Arabian club
Al Nassr for one season, scoring 15 goals in 16 appearances. From 2003 to 2009, Tenorio played in
Qatar for
Al Sadd, winning three
Qatar Stars League titles, before moving to
Al-Nasr in the
United Arab Emirates. Before the 2007
Copa América, Tenorio expressed interest in playing in the Premier League. In 2012, Tenorio returned to South America, playing for various clubs including
Vasco da Gama who were relegated from the
Brazilian Série A in
2013, and
Bolívar who topped the
Bolivian Primera División in 2014–15. He returned to Quito for one season in 2016. ==International career==