Leinier Dominguez Perez scored his career's best result on Monday, winning the Grand Prix in Thessaloniki, Greece outright. The Cuban grandmaster showed his skill in rook endings once again and defeated Veselin Topalov in 71 moves, while co-leader Gata Kamsky lost to Fabiano Caruana after a horrible blunder. Peter Svidler avoided a draw but also blundered and lost to Hikaru Nakamura, while Vassily Ivanchuk finished with his only win in the tournament, against Etienne Bacrot.