At the 2000 Summer Olympics in Sydney, Santander competed for the Venezuelan squad in the men's 4×100 m freestyle relay. Teaming with Oswaldo Quevedo, Francisco Páez, and Francisco Sánchez in heat two, Santander swam the lead-off leg and recorded a split of 51.28, but the Venezuelans finished the race in seventh place and seventeenth overall in a final time of 3:24.64.