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January:
4-9: ExxonMobil Qatar Open
Venue: Doha, QAT
Winner: Nikolay Davydenko
4-10: Aircel Chennai Open
Venue: Chennai, IND
Winner: Marin Cilic
3-10: Brisbane International
Venue: Brisbane, AUS
Winner: Andy Roddick
10-16: Medibank International
Venue: Sydney, AUS
Winner: Marcos Baghdatis
10-16: Heineken Open
Venue: Auckland, NZL
Winner: John Isner
18-31: Australian Open
Venue: Melbourne, AUS
Winner: Roger Federer

February:
1-7: Movistar Open
Venue: Santiago, CHI
Winner: Thomaz Bellucci
1-7: PBZ Zagreb Indoors
Venue: Zagreb, CRO
Winner: Marin Cilic
1-7: SA Open
Venue: Johannesburg, RSA
Winner: Feliciano Lopez
8-14: Brasil Open
Venue: Costa do Sauipe, BRA
8-14: ABN AMRO World Tournament (500)
Venue: Rotterdam, NED
8-14: SAP Open
Venue: San Jose, USA
15-21: Open 13
Venue: Marseille, FRA
15-21: Regions Morgan Keegan Championships (500)
Venue: Memphis, USA
15-21: Copa Telmex
Venue: Buenos Aires, ARG
22-28: Abierto Mexicano Telcel (500)
Venue: Acapulco, MEX
22-28: Barclays Dubai Championships (500)
Venue: Dubai, UAE
22-28: Delray Beach International
Venue: Delray Beach, USA

March:
5-7: Davis Cup first round
Venue: Various
11-21: BNP Paribas Open (1000)
Venue: Indian Wells, USA
24-Apr 4: Sony Ericsson Open (1000)
Venue: Miami, USA

April:
5-11: US Claycourt Championship
Venue: Houston, USA
5-11: Grand Prix Hassan II
Venue: Casablanca, MAR
5-11: Warsaw Open
Venue: Warsaw, POL
12-18: Monte Carlo Rolex Masters (1000)
Venue: Monte Carlo, MCO
19-25: Open Sabadell Atlantico (500)
Venue: Barcelona, SPA
26-May 2: Internazionali BNL d'Italia (1000)
Venue: Rome, ITA

May:
3-9: Estoril Open
Venue: Estoril, POR
3-9: Serbia Open
Venue: Belgrade, SRB
3-9: BMW Open
Venue: Munich, GER
10-16: Mutua Madrilena Madrid Open (1000)
Venue: Madrid, SPA
17-23: Interwetten Austrian Open
Venue: Kitzbuhel, AUT
17-23: ARAG World Team Championship
Venue: Dusseldorf, GER
24-Jun 6: French Open
Venue: Roland Garros, Paris, FRA

June:
7-13: Gerry Weber Open
Venue: Halle, GER
7-13: AEGON Championships
Venue: London, GBR
14-20: Ordina Open
Venue: 's-Hertogenbosch, NED
14-20: AEGON International
Venue: Eastbourne, GBR
21-Jul 4: Wimbledon
Venue: All England Club, London, GBR

July:
5-11: Campbell's Hall of Fame Championships
Venue: Newport, USA
9-11: Davis Cup quarter-finals/zonal second round
Venue: Various
12-18: Catella Swedish Open
Venue: Bastad, SWE
12-18: Mercedes Cup
Venue: Stuttgart, GER
17-25: Atlanta Tennis Championships
Venue: Atlanta, USA
19-25: International German Open (500)
Venue: Hamburg, GER
26-Aug 1: LA Open
Venue: Los Angeles, USA
26-Aug 1: Allianz Suisse Open
Venue: Gstaad, SUI
26-Aug 1: Studena Croatia Open
Venue: Umag, CRO

August:
2-8: Legg Mason Classic (500)
Venue: Washington DC, USA
9-15: Rogers Cup (1000)
Venue: Toronto, CAN
16-22: Western & Southern Financial Group Masters (1000)
Venue: Cincinnati, USA
23-28: Pilot Pen Tennis
Venue: New Haven, USA
30-Sep 12: US Open
Venue: Flushing Meadows, New York, USA

September:
17-19: Davis Cup semi-finals/play-offs
Venue: Various
20-26: Open de Moselle
Venue: Metz, FRA
20-26: BCR Open Romania
Venue: Bucharest, ROM
27-Oct 3: Malaysian Open
Venue: Kuala Lumpur, MAS
27-Oct 3: Thailand Open
Venue: Bangkok, THA

October:
4-10: China Open (500)
Venue: Beijing, CHN
4-10: Japan Open (500)
Venue: Tokyo, JPN
11-17: Shanghai Masters (1000)
Venue: Shanghai, CHN
18-24: If Stokcholm Open
Venue: Stockholm, SWE
18-24: Kremlin Cup
Venue: Moscow, RUS
25-31: Lyon Grand Prix
Venue: Lyon, FRA
25-31: Bank Austria Trophy
Venue: Vienna, AUT
25-31: St Petersburg Open
Venue: St Petersburg, RUS

November:
1-7: Davidoff Swiss Indoors (500)
Venue: Basel, SUI
1-7: Valencia Open (500)
Venue: Valencia, SPA
8-14: BNP Paribas Masters (1000)
Venue: Paris, FRA
21-28: Barclays ATP World Tour Finals
Venue: O2 Arena, London, GBR

December:
3-5: Davis Cup final
Venue: TBC