Tennys Sandgren reached the quarterfinals of the Australian Open. (Getty Images)

After a Grand Slam, there's a lot of ranking shifts and career-high rankings to report. The Australian Open aftermath provided no exception with champions and contenders alike reaping the benefits of doing well in the main draw. Here are the players with the best ranking jumps this week:

1

Tennys Sandgren

+44 — No. 100 to No. 56

A dark horse in this year's Australian Open, the American defied expectations after dropping out of the Top 100 less than a month ago. He bounced back into the Top 60 after reaching the quarterfinals in Melbourne and giving Roger Federer more than just a scare.

2

Sofia Kenin

+8 — No. 15 to No. 7

The new Australian Open champion got a secondary prize of a new career-high ranking inside the Top 10. The 21-year-old defeated Garbine Muguruza in the Melbourne final, suprassing her highest ranking of No. 12 for only one week last year. She is also now the new American No. 1, surpassing Serena Williams.

3

Marton Fucsovics

+14 — No. 67 to No. 53

The Hungarian made it to the fourth round in Melbourne by getting rid of Denis Shapovalov, Janik Sinner and Tommy Paul along the way. This was his second run to the round of 16 at the Australian Open, boosting himself almost to the Top 50 although he is still shy of his career-high ranking of No. 31 from March last year.

4

Ons Jabeur

+33 — No. 76 to No. 45

Jabeur made history by becoming the first Arab woman to reach the quarterfinals in Australia, but lost to eventual champion Kenin. However, her efforts were not in vain as she has jumped into the Top 50 for the first time in her career.

5

Nao Hibino

+19 — No. 103 to No. 84

Jumping over 20 places, Hibino blazed through the qualifiers to reach the Australian Open main draw. She then went on to defeat Peng Shuai, solidifying a place back into the Top 100 for the first time since 2017. She couldn't get past the second round, but it's a good start.