Tournaments
The locations and titles of these tournaments were subject to change every year. The tournaments – in calendar order – in 2008 were:
| Tournament | Location | Court surface | Prize Money(US$) | Draw Size | First played |
| Next Generation Adelaide International | Adelaide, Australia | Hard | $419,000 | 32 | 1974 |
| Qatar ExxonMobil Open | Doha, Qatar | Hard | $1,000,000 | 32 | 1993 |
| Chennai Open | Chennai, India | Hard | $436,000 | 32 | 1996 |
| Medibank International | Sydney, Australia | Hard | $436,000 | 32 | 1885 |
| Heineken Open | Auckland, New Zealand | Hard | $436,000 | 32 | 1956 |
| PBZ Zagreb Indoors | Zagreb, Croatia | Carpet (indoors) | $416,000 | 32 | 2006 |
| International Tennis Championships | Delray Beach, Florida, USA | Hard | $416,000 | 32 | 1993 |
| Movistar Open | Viña del Mar, Chile | Clay | $448,000 | 32 | 1993 |
| Open 13 | Marseille, France | Hard (indoors) | $600,000 | 32 | 1993 |
| Brasil Open | Costa do Sauipe, Bahia, Brazil | Clay | $456,000 | 32 | 2001 |
| SAP Open | San Jose, California, USA | Hard (indoor) | $416,000 | 32 | 1889 |
| Copa Telmex ATP Buenos Aires | Buenos Aires, Argentina | Clay | $600,000 | 32 | 1968 |
| Tennis Channel Open | Las Vegas, Nevada, USA | Hard | $416,000 | 32 | 1986 |
| Open de Tenis Comunidad Valenciana | Valencia, Spain | Clay | $416,000 | 32 | 1995 |
| U.S. Men's Clay Court Championships | Houston, Texas, USA | Clay | $416,000 | 32 | 1910 |
| Grand Prix Hassan II | Casablanca, Morocco | Clay | $416,000 | 32 | 1984 |
| BMW Open | Munich, Germany | Clay | $416,000 | 32 | 1900 |
| Estoril Open | Estoril, Portugal | Clay | $625,000 | 32 | 1990 |
| Hypo Group Tennis International | Pörtschach, Austria | Clay | $416,000 | 32 | 1981 |
| AEGON Championships | London, Great Britain | Grass | $800,000 | 56 | 1890 |
| Gerry Weber Open | Halle, Germany | Grass | $800,000 | 32 | 1991 |
| Nottingham Open | Nottingham, Great Britain | Grass | $416,000 | 32 | 1995 |
| Ordina Open | 's-Hertogenbosch, Netherlands | Grass | $416,000 | 32 | 1990 |
| Campbell's Hall of Fame Championships | Newport, Rhode Island, USA | Grass | $416,000 | 32 | 1976 |
| Allianz Suisse Open Gstaad | Gstaad, Switzerland | Clay | $496,000 | 32 | 1915 |
| Swedish Open | Båstad, Sweden | Clay | $416,000 | 32 | 1948 |
| Dutch Open Tennis Amersfoort | Amersfoort, Netherlands | Clay | $416,000 | 32 | 1957 |
| Countrywide Classic | Los Angeles, California, USA | Hard | $525,000 | 32 | 1927 |
| Croatia Open Umag | Umag, Croatia | Clay | $416,000 | 32 | 1990 |
| Indianapolis Tennis Championships | Indianapolis, Indiana, USA | Hard | $525,000 | 32 | 1988 |
| Orange Prokom Open | Sopot, Poland | Clay | $500,000 | 32 | 2001 |
| Legg Mason Tennis Classic | Washington, D.C., USA | Hard | $600,000 | 48 | 1969 |
| Pilot Pen Tennis | New Haven, Connecticut, USA | Hard | $675,000 | 48 | 1985 |
| China Open | Beijing, China | Hard | $500,000 | 32 | 1993 |
| BCR Open Romania | Bucharest, Romania | Clay | $525,000 | 32 | 1993 |
| Thailand Open | Bangkok, Thailand | Hard (indoors) | $550,000 | 32 | 2003 |
| Kingfisher Airlines Tennis Open | Mumbai, India | Hard | $416,000 | 32 | 2006 |
| Open de Moselle | Metz, France | Hard (indoors) | $416,000 | 32 | 2003 |
| Kremlin Cup | Moscow, Russia | Carpet (indoors) | $1,000,000 | 32 | 1990 |
| Stockholm Open | Stockholm, Sweden | Carpet (indoors) | $800,000 | 32 | 1969 |
| Davidoff Swiss Indoors | Basel, Switzerland | Hard (indoors) | $1,000,000 | 32 | 1970 |
| Grand Prix de Tennis de Lyon | Lyon, France | Carpet (indoors) | $800,000 | 32 | 1987 |
| St. Petersburg Open | St. Petersburg, Russia | Carpet (indoors) | $1,000,000 | 32 | 1995 |
Read more about this topic: ATP International Series