The Hopman Cup XXXI was the 31st edition of the Hopman Cup tournament between nations in men's and women's tennis and the final edition that took place at the Perth Arena in Perth, Western Australia.

[4] For the first time in history, Roger Federer and Serena Williams faced each other in a competitive event.

Federer came out victorious alongside Bencic in the mixed doubles rubber.

[5] Switzerland successfully defended their title, beating Germany in a repeat of the previous year's final.

This was Federer's 3rd Hopman Cup title, the most by any player, male or female.