| 2007 WTA Tier I Series | |
| Duration: | January 29 – October 21 |
| Edition: | 18th |
| Tournaments: | 10 |
| Most Tournament Titles: | Justine Henin Jelena Janković (2) |
| Most Tournament Finals: | Justine Henin Jelena Janković (3) |
| Previous: | 2006 |
| Next: | 2008 |
See main article: article and 2007 WTA Tour.
The WTA Tier I tournaments are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.[1]
| Tournament | Country | Location | Surface | Date | Prize money[2] | |
|---|---|---|---|---|---|---|
| Toray Pan Pacific Open[3] | Japan | Tokyo | Carpet (i) | Jan 29 – Feb 4 | $1,340,000 | |
| Pacific Life Open | United States | Indian Wells | Hard | Mar 5–18 | $2,100,000 | |
| Sony Ericsson Open | United States | Key Biscayne | Hard | Mar 19 – Apr 1 | $3,450,000 | |
| Family Circle Cup | United States | Charleston | Clay (green) | Apr 9 – 15 | $1,340,000 | |
| Qatar Telecom German Open[4] | Germany | Berlin | Clay | May 7 – 13 | $1,340,000 | |
| Internazionali BNL d'Italia[5] [6] | Italy | Rome | Clay | May 14 – 20 | $1,340,000 | |
| Acura Classic[7] | United States | San Diego | Hard | Jul 30 – Aug 5 | $1,340,000 | |
| Rogers Cup | Canada | Toronto | Hard | Aug 13–19 | $1,340,000 | |
| Kremlin Cup[8] | Russia | Moscow | Hard (i) | Oct 8–14 | $1,340,000 | |
| Zürich Open | Switzerland | Zürich | Hard (i) | Oct 15–21 | $1,340,000 |