Australia's John Peers and New Zealand's Michael Venus are the doubles champions at an ATP 250 tournament in Switzerland.

John Peers is through to a doubles final in Switzerland, while Thanasi Kokkinakis will play an ATP Challenger final in Italy.

Australian men are enjoying great success in doubles this week, with Matt Ebden, John-Patrick Smith and John Peers all advancing to ATP-level semifinals.

Once an Australian Open ballkid, the enduring John Peers is now a family man and former champion with an eye on further Grand Slam successes.

A doubles victory for John Peers and Luke Saville seals victory for Team Australia in an entertaining ATP Cup showdown with Team Greece.

Although they had five match points, John Peers and Michael Venus have lost their second round-robin match in London.

Australian John Peers and New Zealand's Michael Venus have lost their opening round-robin match at the ATP Finals in London.

Australian John Peers and New Zealand's Michael Venus become sixth team to qualify for season-ending ATP Finals in London.

Mixed results for Australians in the European Open finals, with John Peers claiming the doubles title and Alex de Minaur beaten in singles decider.

Alex de Minaur advances to the European Open singles final, while fellow Aussie John Peers is through to the doubles final.