Polona Hercog Singles performance timeline Singles performance timeline

| Tournament | _2006 | _2007 | _2008 | _2009 | _2010 | _2011 | _2012 |
|---|---|---|---|---|---|---|---|
| Toronto | A | A | A | A | A | 1R | A |
| Cincinnati | A | A | A | A | A | 1R | A |
| Tokyo | A | A | A | A | 1R | A | A |
| Win–Loss | 0–0 | 0–0 | 0–0 | 0–0 | 1–2 | 2–3 | 0–1 |
| Statistics | Statistics | Statistics | Statistics | Statistics | Statistics | Statistics | Statistics |
| Tour Level Win–Loss | 0–0 | 0–2 | 1–2 | 6–8 | 27–26 | 30–25 | 14–23 |
| Tour Level Win % | 0% | 0% | 33% | 43% | 51% | 55% | 38% |
| Overall Win–Loss | 14–7 | 26–8 | 37–16 | 48–18 | 32–26 | 32–27 | 20–26 |
| Overall Win % | 67% | 76% | 70% | 73% | 55% | 54% | 43% |
| Year End Ranking | 717 | 345 | 243 | 71 | 48 | 36 | 80 |