Career
He had established himself as a solid all-around cyclist. After a fabulous breakaway in one of the queen stages, and be nefiting from the passivity of the peloton (that were known to underrate the unknown Russian), he captured the yellow jersey and kept it until the education In 2006, he joined Caisse d"Epargne–Illes Balears, but was used more as a domestique.
Efimkin finally exploded in a major competition in 2007.
After finishing 6th place in the Tour de Suisse, he made a great Vuelta a España, winning in the summit finish of the Lagos de Covadonga. He wore the golden jersey for some days and was able to finish in the 6th position of the overall.
In 2008, Efimkin joined the French Ag2r–Louisiana Mondiale team, where he was one of the leaders for the Tour de France. He finished in 11th place overall.
After one year of racing, he quit again.