Denis Istomin captures his second ATP Challenger Tour crown of 2018, in Almaty, Kazakhstan.

Denis Istomin defeats Nicolas Jarry in three sets to reach the Generali Open final on Friday.

Denis Istomin upsets two-time MercedesCup runner-up Philipp Kohlschreiber in straight sets on Tuesday.

Denis Istomin, who defeated Pierre-Hugues Herbert on Monday, is one of eight unseeded players vying for a quarter-final spot in the fourth eighth of the draw.

Denis Istomin lifts his first Chengdu Open trophy.

Uzbekistan's Denis Istomin beats Yuichi Sugita of Japan on Saturday to reach the Chengdu Open final.

Denis Istomin reacts to holding off Jared Donaldson in a third-set tie-break to reach the Chengdu semi-finals.

Denis Istomin rallies from a set down to upset Richard Gasquet in the first round in Metz.

Denis Istomin celebrates beating six-time champion Novak Djokovic at the Australian Open on Thursday.

Denis Istomin falls to Rafael Nadal in the first round.

Denis Istomin eliminó al jugador #NextGen Borna Coric.

Aliaksandr Bury and Denis Istomin claim the Gstaad doubles crown.

Denis Istomin advances to Swiss Open Gstaad second round in 55 minutes.

Denis Istomin advances to the second round in Bastad.

Denis Istomin beat Sam Querrey in Nottingham to win his maiden ATP World Tour title.

Denis Istomin es el quinto primer ganador de un trofeo ATP World Tour este año.

Denis Istomin advances to the Nottingham semi-finals.

Denis Istomin reclamó su primer título ATP World Tour en Nottingham.

Dominic Thiem, Denis Istomin and Benoit Paire all won maiden ATP World Tour titles in 2015.