| Birth Day | September 7, 1986 |
| Birth Place | Russia |
| Denis Istomin age | 37 YEARS OLD |
| Birth Sign | Virgo |
He won the 2013 Kremlin Cup doubles title and was the singles runner-up in the 2012 SAP Open and the 2010 New Haven Open at Yale.
His mother taught him to play tennis when he was a boy.
He was a runner-up at the 2013 St. Petersburg Open in doubles.
He was born in Orenburg, Russia but moved to Tashkent, Uzbekistan when he was three months old.
He lost to Roger Federer in the 2006 Australian Open; Federer went on to win the tournament.
