Life moves fast. Take Andy Roddick, who today joins the 40 club.

In honor of his special birthday, here’s a fun look at the International Tennis Hall of Famer by the numbers:

1 – is his highest ranking on the ATP Tour

2 – US Open title match appearances (winning in 2003)

3 – Wimbledon finals reached

4 – ATP doubles titles

5 – Masters 1000 singles crowns

6 – meetings with Andre Agassi (winning once)

7 – times seeded at No. 2 in a major singles draw

8 - times finishing on the ATP’s Top 10 annual prize money list

9 – consecutive seasons inside the ATP’s year-end Top 10

10 – meetings with Rafael Nadal (winning three)

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Has it really been 10 years since Roddick hung up his racquet at Flushing Meadows?

Has it really been 10 years since Roddick hung up his racquet at Flushing Meadows?

11 – and 0 against Tommy Robredo, his most dominant ATP head-to-head series

12 – showdowns with best friends James Blake and Mardy Fish (9-3 record against each)

13 – victories in a fifth set

14 – meetings with Lleyton Hewitt (winning seven)

15 – years old when he played his first ITF junior tournament (Grade 2, New Orleans)

16 – years old when he played his first professional match (ITF Vero Beach)

17 – years old when he won his first of two boys' singles Slams (2000 Australian Open)

18 – years old when he cracked the Top 100

19 – years old when he cracked the Top 10

20 – years old when he cracked the Top 5

21 – years old when he won the US Open and reached No. 1

22 – years since the Andy Roddick Foundation launched

23 – Top 5 wins

24 – meetings with Roger Federer (winning three)

25 – years old when he led the U.S. to its last Davis Cup title (2007)

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26 – years old when he tied the knot with Brooklyn Decker

27 – years old when he won his final Masters 1000 title (2010 Miami)

28 – years old he when he qualified for his eighth consecutive ATP Finals

29 – years old when he captured his final title (2012 Atlanta)

30 – years old when he retired at the 2012 US Open

31 – plus 100 equals his number of match wins on the major stage

32 – trophies lifted on the ATP Tour

33 – Davis Cup singles wins

34 – years old when he became a Hall of Famer

35 – tiebreakers won at Wimbledon (versus 20 lost)

36 – point match tie-break went his way against Mardy Fish in the first round of 2011 Rome

37 – Top 10 wins

38 – times as a Top 16 seed in a major draw from 46 total appearances (had stretch of 33 straight Top 10 seedings)

39 – matches played at London Queen’s en route to four titles (32-7)

40 – years old today!