López-Zubero swam in three
Summer Olympics—1988, 1992 and 1996. He placed eleventh in the 200-meter
backstroke at the
1988 Summer Olympics in Seoul, Korea, and returned four years later in the
1992 Summer Olympics in Barcelona, Spain to win the gold medal in the same event while also placing fourth in the 100-meter backstroke and seventh in the 100-meter butterfly. Four years afterward, López-Zubero finished fourth in the 100-meter backstroke and sixth in the 200-meter backstroke at the
1996 Summer Olympics in Atlanta, Georgia. López-Zubero won world championship titles in the 200-meter backstroke at the
1991 World Aquatics Championships in Perth, Western Australia and the 100-meter backstroke at the
1994 World Aquatic Championships in Rome, Italy, and also finished third in the 100-meter backstroke in 1991 and second in the 200-meter backstroke in 1994. López-Zubero was a five-time European champion, winning the 100-meter backstroke in 1989 (Bonn), 1991 (Athens), 1993 (Sheffield) and 1997 (Seville), winning the 200-meter backstroke in 1991 and finishing as the runner-up in 1993. He also won the 100 and 200-meter backstroke events at the 1990 and 1994
Goodwill Games. == Life after competition swimming ==