Monica Niculescu Singles performance timeline Singles performance timeline

| Tournament | _2006 | _2007 | _2008 | _2009 | _2010 | _2011 | _2012 |
|---|---|---|---|---|---|---|---|
| Beijing | NT I | NT I | NT I | A | A | SF | 2R |
| WTA Premier 5 Tournaments | WTA Premier 5 Tournaments | WTA Premier 5 Tournaments | WTA Premier 5 Tournaments | WTA Premier 5 Tournaments | WTA Premier 5 Tournaments | WTA Premier 5 Tournaments | WTA Premier 5 Tournaments |
| Dubai | Not Tier I | Not Tier I | Not Tier I | 2R | A | LQ | NP5 |
| Doha | Not Tier I | Not Tier I | A | Not Held | Not Held | NP5 | QF |
| Rome | A | A | 2R | 1R | A | A | 1R |
| Cincinnati | Not Tier I | Not Tier I | Not Tier I | A | 2R | 1R | A |
| Canada | A | A | 2R | 1R | 1R | LQ | A |
| Tokyo | A | A | A | A | A | A | 1R |
| Year-End ranking | 222 | 197 | 47 | 101 | 83 | 30 | 58 |