Welcome to the men’s year-end edition of BIGGEST MOVERS.

For the second year in succession, Australia had six men finish inside the ATP top in 2019 with many others making rapid progress. Let's celebrate their achievements. #GoAussies http://bit.ly/2OmVtIj 

Excellent season for @alexdeminaur, who won his first career ATP title in Sydney and then advanced to the third round of the #AusOpen. Won titles two and three in Atlanta and Zhuhai respectively along with a trip to the US Open fourth round – a career-best Slam result.

Demon also reached the ATP 500 final in Basel – a result that saw him break into the top 20 – and closed the year by going undefeated in singles for Australia at the Davis Cup Finals.

Breakthrough season for @jordanthommmo2, who enjoyed a series of firsts. Notched best ever Slam result by advancing to the third round at Roland-Garros, after posting a career-best ATP Masters result via a fourth-round run in Miami.

Excelled on grass – reached the final in ‘s-Hertogenbosch and semis in Antalya – and won more than 30 matches in 2019. @jordanthommmo2 progressed to a further three ATP quarterfinals (Sydney, New York, Houston) and reached the Challenger final in April in Nanchang, China.

. @AlexeiPopyrin99 performed brilliantly at the majors in 2019, winning his first-round matches at all four. He went as far as the third round at the Australian and US Opens, and cracked the top 100 in June around the time he qualified for the Wimbledon main draw.

The Sydneysider, who won 37 matches in 2019, qualified for 10 tour-level events in 2019, with his best ATP result a quarterfinal in Atlanta. @AlexeiPopyrin99

A heartwarming return to the top 100 for @JamesDuck21, who endured five surgeries in a 13-month span from January 2017 to January 2018. The 27-year-old won ATP Challenger titles in Bangkok, Baotou, Playford and Pune in 2019, the last of those helping him return to the top 100.

Playing almost entirely on the Challenger circuit to rebuild his ranking – which fell outside the top 1,000 in mid 2018 – @JamesDuck21 won 52 matches this season.

No player won more professional matches in 2019 than @chrisoconnelll, whose incredible tally of 82 match victories helped him vault more than 1,000 places in the rankings in the past 12 months.

After reaching 10 ITF Futures finals in the first seven months of 2019 – and winning three – @chrisoconnelll turned his attention to the ATP Challenger circuit and continued winning, hoisting trophies on clay in Cordenons, Italy and on the hard courts of Fairfield, California.

A further two Challenger finals (Sibiu and Knoxville) helped push @chrisoconnelll to a career-high ranking and on the verge of the top 100, an even bigger achievement considering the illness and injury problems that halted his progress in 2017/18.

More http://bit.ly/2OmVtIj