Venus Williams defeated Jelena Jankovic 5-7 6-3 6-4 in the WTA Tour Championships semi-final on carpet. The upset overturned the form book — Jelena Jankovic came in leading the head-to-head 7–6, defending last year's semi-final. Venus Williams narrowed the head-to-head to 7–7.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-06 | Indian Wells | R64 | hard | Venus Williams | 1-6 7-6(5) 6-1 |
| 2015-10-12 | Hong Kong | SF | hard | Jelena Jankovic | 6-4 7-5 |
| 2012-04-02 | Charleston | R32 | clay | Venus Williams | 7-5 6-0 |
| 2010-05-03 | Rome | QF | clay | Jelena Jankovic | 6-0 6-1 |
| 2008-11-03 | WTA Tour Championships | SF | carpet | Venus Williams | 6-2 2-6 6-3 |
| 2008-09-29 | Stuttgart | SF | clay | Jelena Jankovic | 6-7(8) 7-5 6-2 |
| 2008-05-12 | Rome | QF | clay | Jelena Jankovic | 5-7 6-2 6-3 |
| 2007-08-27 | US Open | QF | hard | Venus Williams | 4-6 6-1 7-6(4) |
| 2007-05-28 | Roland Garros | R32 | clay | Jelena Jankovic | 6-4 4-6 6-1 |
| 2007-04-09 | Charleston | SF | clay | Jelena Jankovic | 3-6 6-3 7-6(5) |
| 2006-06-26 | Wimbledon | R32 | grass | Jelena Jankovic | 7-6(8) 4-6 6-4 |
| 2006-05-15 | Rome | QF | clay | Venus Williams | 5-7 6-4 6-1 |
| 2005-07-25 | Stanford | QF | hard | Venus Williams | 6-3 6-3 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About