Site data updated: 2026-05-28 18:14 UTC
Serena Williams def. Karin Knapp
6-0 6-2
Match Information
| Date | Aug 21, 2015* |
|---|---|
| Tournament | Cincinnati |
| Category | WTA 500 |
| Surface | Hard |
| Round | R16 |
| Winner | Serena Williams |
| Score | 6-0 6-2 |
| Loser | Karin Knapp |
| Stat | Serena Williams | Karin Knapp |
|---|---|---|
| Aces | 3 | 1 |
| Double faults | 1 | 4 |
| First serve % | 65 | 78 |
| First serve points won % | 86 | 48 |
| Second serve points won % | 75 | 33 |
| Break points saved % | — | 17 |
| Break points converted % | 83 | — |
| Service points won % | 82 | 45 |
| Return points won % | 55 | 18 |
| Total points won % | 68 | 32 |
Pre-match Comparison
| Field | Serena Williams | Karin Knapp |
|---|---|---|
| Country | USA | ITA |
| Birth date | Sep 26, 1981 | Jun 28, 1987 |
| Age | 33 | 28 |
| Height | 175 | 180 |
| Handedness | Right-Handed | Right-Handed |
| Backhand style | Two-Handed Backhand | Two-Handed Backhand |
| Ranking (entering) | 1 | 35 |
| Ranking points (entering) | 11,821 | 1,345 |
| Elo (entering) | 2,200 | 1,702 |
| Career W-L | 825–170 | 103–117 |
| Career earnings | $94,932,862 | $2,283,203 |
Path
Serena Williams's path
| Date | Round | Opponent | Score | W/L | H2H | Match data |
|---|---|---|---|---|---|---|
| Aug 20, 2015 | R32 | Tsvetana Pironkova | 7-5 6-3 | W | H2H | Match data |
Serena Williams's next match
| Date | Round | Opponent | Score | W/L | H2H | Match data |
|---|---|---|---|---|---|---|
| Aug 22, 2015 | QF | Ana Ivanovic | 3-6 6-4 6-2 | W | H2H | Match data |
Karin Knapp's path
| Date | Round | Opponent | Score | W/L | H2H | Match data |
|---|---|---|---|---|---|---|
| Aug 20, 2015 | R32 | Daria Saville | 6-4 6-1 | W | H2H | Match data |
| Aug 19, 2015 | R64 | Ana Konjuh | 7-5 6-1 | W | H2H | Match data |