Career
His career-high Association of Tennis Professionals singles ranking is World Number. Juniors 3 in the combined junior world rankings in February 2005. Junior Grand Slam results: Australian Open: QF (2005) French Open: San Francisco (2005) Wimbledon: 1R (2004) United States Open: 2R (2005) Pro tour At the 2010 Australian Open, he lost in the second round to World Number.
The 4-hour, 56-minute match stretched over the course of two days, and tied the record for the most games played in the Open Era at the French Open.
Lacko continued his 2nd round streak in 2010 majors by defeating the 24th seed Marcos Baghdatis in four sets. He then lost a very tight five set 2nd round match against Jérémy Chardy.
Lacko played in the 2010 Atlanta Tennis Championships and upset former World Number.1 Lleyton Hewitt 6–2, 6–4 to advance to the quarterfinals. He reached his first singles Association of Tennis Professionals final in Zagreb 2012, where he lost to Mikhail Youzhny in straight sets.
At the 2014 French Open he lost in the first round to Roger Federer.
Doubles (4) performance timeline Current till 2015 United States Open. Current as far as the United States Open.