Kubot has also had success in singles, achieving a career-high ranking of world No. 41 in April 2010 and reaching the quarterfinals of the 2013 Wimbledon Championships. He also reached the finals of two ATP events: the 2009 Serbia Open and the 2010 Brasil Open. Kubot has also represented Poland in the Davis Cup, and at the 2012 and 2016 Olympic Games. In 2013 he was awarded the Gold Cross of Merit by Polish President Bronisław Komorowski.