ATP International Series Gold (known from 1990 to 1999 as the ATP Championship Series) was a series of professional tennis tournaments held internationally between 2000 and 2008 that were part of the ATP Tour. The tournaments were positioned below the ATP Masters Series, and above the ATP International Series in terms of prize money and ranking points available.

International Series Gold tournaments offered players cash prizes (purses from $755,000 to $1,426,250 as of 2008) and the ability to earn ATP ranking points. See Association of Tennis Professionals#ATP rankings for more details.

Effective in 2009, this series of tournaments became the ATP Tour 500, incorporating many of the same tournaments. The "500" represents the number of ATP ranking points earned by the winner of each event in the series.

The locations and titles of these tournaments may change from year to year. The tournaments, in calendar order, are:

Players with 3 or more titles

More information #, Player ...

#	Player	RO	ME	DU	AC	BA	ST	KI	TO	VI	EX	#	Winning span
1	Roger Federer	1	-	4	-	-	-	-	1	2	-	8	2002–07 (6)
1	Rafael Nadal	-	-	1	1	4	2	-	-	-	-	8	2005–08 (4)
3	Àlex Corretja	-	-	-	-	-	-	2	-	-	1	3	2000–02 (3)
3	Tommy Haas	-	2	-	-	-	-	-	-	1	-	3	2001–07 (7)
3	Gustavo Kuerten	-	-	-	1	-	1	-	-	-	1	3	2000–01 (2)
3	Carlos Moyá	-	-	-	2	1	-	-	-	-	-	3	2002–04 (3)
3	Andy Roddick	-	1	1	-	-	-	-	-	-	1	3	2001–08 (8)

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^ RO = Rotterdam, ME = Memphis, DU = Dubai, AC = Acapulco (Mexico City), BA = Barcelona, ST = Stuttgart, KI = Kitzbühel, TO = Tokyo, PA = Paris, EX = Extinct tournaments.

^ The 4th International Series Gold tournament was played in Mexico City in 2000, before moving to its current location in Acapulco in 2001.

^ The "Extinct tournaments" are: Indianapolis, Washington, London.

^ Active players in bold. 3 or more titles per tournament underlined.

Players with 3 or more titles

More information Titles, # ...

	Titles	#
1.	Pete Sampras	12
2.	Boris Becker	9
3.	Stefan Edberg	8
4.	/ Goran Ivanišević	7
5.	Andre Agassi	6
	/ Ivan Lendl	6
7.	Michael Chang	5
	Jim Courier	5
	Richard Krajicek	5
10.	Yevgeny Kafelnikov	4
	Thomas Muster	4
12.	Todd Martin	3
	Andriy Medvedev	3
	Marcelo Ríos	3
	Michael Stich	3

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• Prior to the formation of the ATP in 1990 three of these tournaments Philadelphia, Indianapolis, and Tokyo were part of the Grand Prix Super Series major ranking tournaments. The precursor to Masters 1000 Series Events.

• ATP International Series
• List of tennis tournaments

• Association of Tennis Professionals (ATP) official website