Carlsen vs Topalov, Anand vs Aronian in rd 1 at Stavanger

Round 1

CARLSEN Magnus vs TOPALOV Veselin 
ANAND Viswanathan vs ARONIAN Levon 
NAKAMURA Hikaru vs WANG Hao 
SVIDLER Peter vs HAMMER Jon Ludvig 
KARJAKIN Sergey vs RADJABOV Teimour 

Round by round pairings: http://norwaychess.com/en/program/parings-norway-chess-2013/