Not to jinx our top American GM, but Nakamura is playing incredible chess right now and continues to lead the very strong Tal Memorial. He kept the lead by defeating World Champion Anand with the black pieces. If you are not impressed you are not paying attention.
Speaking of Nakamura and incredible tournaments, the great chess sponsor in the US, Rex Sinquefield, has organized a one-of-a-kind tournament to take place in St. Louis in September. The Sinquefield Cup (when you pay for it you get to name it whatever you want) is a 4 player double round-robin, featuring the top 2 players in the US (Nakamura and Kamsky) and what are currently the top 2 players (by rating) in the world (Carlsen and Aronian). The question remains whether Carlsen will be giving it 100%, as he is to face Anand for the World Chess Championship a couple months later, but then again there’s a 170 thousand dollar prize fund to consider.