(CNN) -- Alberto Contador scored an emphatic victory in the final 24 kilometer time trial to wrap up overall honors in the Tour of Basque Country on Saturday.
Contador celebrates his victory in the closing time trial in Zalla.
The Astana star won the testing stage in 31 minutes 59 seconds with Team Katusha's Toni Colom in second place, 22 seconds adrift.
Fellow Spaniard Samuel Sanchez, Contador's nearest challenger going into the decisive final day, finished third, 45 seconds behind.
Olympic road race champion Sanchez (Euskatel) had been just eight seconds in arrears before the race against the clock but never threatened and lost second overall to Colom.
Australian Cadel Evans and Luis Leon Sanchez of Spain completed a high quality top five in the final standings.
Contador, who threw away a winning position in the Paris-Nice stage race, showed he is back to his best form on home soil as he builds up to the Tour de France.
He took control of the stage race on Wednesday with victory on the steep Arrate climb and comfortably maintained his advantage.
His Astana teammate Lance Armstrong is currently recovering from a broken collarbone before heading to the Giro d'Italia which Contador will skip despite being defending champion.
Contador won the 2007 Tour de France but was unable to defend his title after switching to Astana who were prevented from racing last year because of doping misdemeanors by former members of the team.
He won the Giro and the Tour of Spain but has concentrated his ambitions on a second Tour victory with seven-time winner Armstrong also intent on making it eight in an eagerly-awaited showdown.