Sofia Costoulas def. Whitney Osuigwe
6-4 3-6 6-1
Sofia Costoulas defeated Whitney Osuigwe 6-4 3-6 6-1 in the 2026 ASB Classic first round on hard courts on January 5, 2026.
Match Information
Match Statistics
| Stat | Sofia Costoulas | Whitney Osuigwe |
|---|---|---|
| Serving | ||
AcesServes that land in and are not touched by the returner. | 3 | 3 |
Double faultsService points lost by missing both first and second serve. | 2 | 3 |
First serve %Percentage of service points where the first serve landed in. | 62.8% | 72.0% |
First serve points won %Percentage of points won after making a first serve. | 81.6% | 59.7% |
Second serve points won %Percentage of second-serve points won, including points lost through double faults. | 37.9% | 42.3% |
Break points saved %Percentage of break points won by the server. | 25.0% | 37.5% |
Service points won %Percentage of all points won while serving. | 65.4% | 54.8% |
| Returning | ||
Break points converted %Percentage of break-point chances won by the returner. | 62.5% | 75.0% |
Return points won %Percentage of all points won while returning. | 45.2% | 34.6% |
| Overall | ||
Total points won %Percentage of all completed points won. | 54.4% | 45.6% |
Match Serve+This match’s service points won percentage minus the tour’s season average, in percentage points. Zero is average; +5 means five points above average. Match-weighted available stats; no opponent adjustment. | +8.5 | -2.1 |
Match Return+This match’s return points won percentage minus the tour’s season average, in percentage points. Zero is average; +5 means five points above average. Match-weighted available stats; no opponent adjustment. | +2.1 | -8.5 |
* Match Serve+ and Match Return+ compare this match with the WTA 2026 average from available match stats. Zero is average; +5 means five percentage points above average. No opponent adjustment.
Win Probability
How the market's view of each player's chances changed through the match.
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Player Comparison
| Field | Sofia Costoulas | Whitney Osuigwe |
|---|---|---|
| Country | BEL | USA |
| Birth date | Apr 2, 2005 | Apr 17, 2002 |
| Age | 20 | 23 |
| Height | — | 168 cm |
| Handedness | Right-Handed | Right-Handed |
| Backhand style | — | — |
| Ranking (entering) | 163 | 158 |
| Ranking points (entering) | 440 | 455 |
| Elo (entering) | 1,558 | 1,455 |
| Current career W-L | 2–5 | 3–17 |
| Current career earnings | $454,986 | $1,251,190 |
Path
Sofia Costoulas's path
| Opponent | Score | W-L | H2H | Match Data | Date | Round |
|---|---|---|---|---|---|---|
| Veronika Erjavec | 6-3 4-6 6-3 | W | H2H | Match data | Jan 3, 2026 | Q2 |
| Elyse Tse | 6-0 6-1 | W | H2H | Match data | Jan 2, 2026 | Q1 |
Sofia Costoulas's next match
| Opponent | Score | W-L | H2H | Match Data | Date | Round |
|---|---|---|---|---|---|---|
| Kaitlin Quevedo | 6-2 6-0 | W | H2H | Match data | Jan 7, 2026 | R16 |
Whitney Osuigwe's path
| Opponent | Score | W-L | H2H | Match Data | Date | Round |
|---|---|---|---|---|---|---|
| Darja Semenistaja | 6-2 2-6 7-5 | W | H2H | Match data | Jan 4, 2026 | Q2 |
| Louisa Chirico | 7-6(4) 6-3 | W | H2H | Match data | Jan 3, 2026 | Q1 |