Naiditsch leads 2.5 - 1.5 after 4 games

Naiditsch, A	g	Germany	2684	½	1	½	½	x	x	2½
Efimenko, Z	g	Ukraine	2689	½	0	½	½	x	x	1½

Official website: http://efimenko.chess32x64.org/Najditch2010/eng/chessmatch2010.htm