Melbourne, VIC, 6 August 2019 | tennis.com.au

Nick Kyrgios’ triumph at the ATP tournament in Washington DC has seen the Australian improve his ranking by 25 places to world No.27.

His return to the world’s top 30 means he is once again the Australian men’s No.1, after he leapfrogged Alex de Minaur this week.

De Minaur, who reached last year’s Washington DC final, dropped 13 places after losing his opening-round match 12 months on.

> ATP rankings
> Australian rankings
> WTA rankings

Several players this week enjoyed significant boosts to their rankings after points were retroactively added to their tallies from ITF tournaments in the past year.

Working with the ATP and WTA tours, the ITF said: “The agreement includes the allocation of ATP and WTA ranking points at $15,000 ITF World Tennis Tour tournaments, additional ranking points at men’s $25,000 tournaments, as well as increased playing opportunities with 48-player qualifying singles draws.

“Players’ rankings will be updated with the new points allocations on 5 August 2019. These points will be applied retroactively to all tournaments played since August 2018.”

The biggest beneficiaries of this change — or rather, a return to the system in place prior to August 2018 — were Christopher O’Connell and Seone Mendez, who both rose more than 150 places this week.

Also making big moves were Alex Bolt, Thanasi Kokkinakis and Maverick Banes.

Australia’s biggest movers