Key: Masters Series and Grand Slams Championship Series World Series prize money/entry points surface
Chennai Open - Chennai (q) (H) (F) 175
Qatar Open - Doha (q) (H) (F) 250
Hopman Cup - Perth* (H)
Davis Cup Preview
Nossa Caixa Tennis Cup - Sao Paulo (q) (H) (F) $100K+H
Sydney International - Sydney (q) (H) (F) 175
Kooyong Classic - Kooyong* (H)
Copa Kia - Santiago (q) (CL) (F) $25K+H
Hilton Waikoloa Village USTA Challenger - Waikoloa (q) (H) (F) $50K+H
The LTA Wrexham Challenger - Wrexham (q) (IH) (F) $25K+H
MoviStar Open - Vina del Mar (q) (CL) (F) 175
PBZ Zagreb Indoors - Zagreb (q) (IC) (F) 175
Cyclus Open de Tenis - Florianopolis (q) (CL) (F) $25K+H
Kia International in Burnie - Burnie (q) (H) (F) $25K+H
USTA Men's $50,000 Challenger of Dallas - Dallas (q) (IH) (F) $50K
KGHM Emax Polish Indoors - Wroclaw (q) (IH) (F) $125K+H
Open 13 - Marseille (q) (IH) (F) 200
SAP Open - San Jose (q) (IH) (F) 175
USTA Freeman Men's Challenger - Joplin (q) (IH) (F) $50K
Regions Morgan Keegan Championships - Memphis (q) (IH) (F) 250
ABN/AMRO World Tennis Tournament - Rotterdam (q) (IH) (F) 250
Dubai Open - Dubai (q) (H) (F) 300
The Tennis Channel Open - Las Vegas (q) (H) (F) 175
3rd Volkswagon Challenger - Wolfsburg (q) (IC) (F) $25K+H
XI Abierto Internacional de Salinas - Salinas (q) (H) (F) $25K+H
BH Telecom Indoors Sarajevo 2006 - Sarajevo (q) (IH) (F) $25K+H
BMW Tennis Championship - Sunrise (q) (H) (F) $100K+H
Tennis Napoli Cup 2006 - Napoli (q) (CL) (F) $100K+H
Open Mutouest St. Brieuc - St. Brieuc (q) (ICL) (F) $25K+H
River Oaks International Tennis Tournament - Houston* (CL)
Citta di Monza - Monza (q) (CL) (F) $25K+H
2006 USTA Tallahassee Tennis Challenger - Tallahassee (q) (H) (F) $50K
Open de la Comunidad Valenciana - Valencia (q) (CL) (F) 175
San Luis Potosi Challenger - San Luis Potosi (q) (CL) (F) $50K+H
2006 Challenger of Santa Clarita California Challenger - Valencia (q) (H) (F) $50K
The Racquet Club Invitational - Midland* (H)
The LTA Cardiff Challenger - Cardiff (q) (IH) (F) $25K+H
Unicredit (Suisse) Bank S. A. Challenger - Chiasso (q) (CL) (F) $25K+H
Coffee Cup Challenger - Chikmagalur (q) (H) (F) $25K+H
Torneo Internacional Challenger Fila 2006 - Leon (q) (H) (F) $25K+H
Grand Prix Hassan II - Casablanca (q) (CL) (F) 175
Bancolombia Open 2006 - Bogota (q) (CL) (F) $100K+H
PVG Open - Dharwad (q) (H) (F) $25K+H
Isla de Lanzarote - Lanzarote (q) (H) (F) $25K+H
Challenger Casablanca San Angel - Mexico City (q) (H) (F) $25K+H
BMW Open - Munich (q) (CL) (F) 175
Prosperita Open 2006 - Ostrava (q) (CL) (F) $25K+H
Garden Open - Rome (q) (CL) (F) $25K+H
Ciudad de Telde - Telde (q) (CL) (F) $25K+H
Tunis Open 2006 - Tunis (q) (CL) (F) $125K+H
ECM Prague Open - Prague (q) (CL) (F) $100K+H
Harrah's Entertainment Men's Pro Challenger - Tunica (q) (ICL) (F) $50K
2006 West Side Tennis Club Clay Court Challenger - Forest Hills (q) (CL) (F) $50K
San Remo Tennis Cup-16° Piertomaso Tessitore - San Remo (q) (CL) (F) $25K+H
Unique Zagreb Open - Zagreb (q) (CL) (F) $50K+H
ARAG World Team Championship - Dusseldorf*
Baden Open - Ettlingen (q) (CL) (F) $25K+H
5° Sporting Challenger - Turin (q) (CL) (F) $25K+H
Czech Open 2006 - Prostejov (q) (CL) (F) $125K+H
Memorial Manfredini - Sassuolo (q) (CL) (F) $25K+H
The Surbiton Trophy - Surbiton (q) (G) (F) $50K
Sunset Moulding Yuba City Racquet Club Challenger - Yuba City (q) (H) (F) $50K