Includes finals, playoffs and exhibition games, so totals run higher than regular-season figures.
| Season | |||||||
|---|---|---|---|---|---|---|---|
| 1983 Wta tourUnited States | 1 | 0 | 0 | 2 | 1 | 12 | 0 |
| 1980 Wta tourUnited States | 5 | 1 | 2 | 8 | 40 | 52 | 2 |
| Career2 seasons | 6 | 1 | 2 | 10 | 41 | 64 | 2 |
| Game | ||||||
|---|---|---|---|---|---|---|
| Nashville: Round of 32 v Nancy YearginL 0-2 28 Feb | 0 | 0 | 2 | 1 | 12 | 0 |
| Split | |||||||
|---|---|---|---|---|---|---|---|
| LossesResult | 5 | 0.0 | 0.0 | 2.0 | 5.8 | 12.4 | 0.4 |
| WinsResult | 1 | 1.0 | 2.0 | 0.0 | 12.0 | 2.0 | 0.0 |
| Regular seasonStage · won 1 of 6 | 6 | 0.2 | 0.3 | 1.7 | 6.8 | 10.7 | 0.3 |
| Anna Maria FernandezOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 2.0 | 5.0 | 12.0 | 0.0 |
| Bonnie GadusekOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 2.0 | 6.0 | 12.0 | 0.0 |
| Cathy FinkOpponent · won 1 of 1 | 1 | 1.0 | 2.0 | 0.0 | 12.0 | 2.0 | 0.0 |
| Helen ParkOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 2.0 | 8.0 | 13.0 | 1.0 |
| Nancy YearginOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 2.0 | 1.0 | 12.0 | 0.0 |
| Sonoe YonezawaOpponent · won 0 of 1 | 1 | 0.0 | 0.0 | 2.0 | 9.0 | 13.0 | 1.0 |
| HardGround · won 1 of 4 | 4 | 0.3 | 0.5 | 1.5 | 6.8 | 9.8 | 0.3 |
Wins-losses for Kosten. Tap a rival for the full head to head.
Stats from official league and public sports feeds. Updated hourly. Tennis history by Jeff Sackmann / Tennis Abstract (CC BY-NC-SA 4.0).