WTA · TENNIS
Alexandrova vs Kostyuk: Seer9 prediction and result
Game time
WTA · Oct 21, 11:00 AM UTC
AlexandrovavsKostyuk
Marta Kostyuk Win
Ekaterina Alexandrova — serve +47 / return +23 vs WTA avg (63 matches)
Marta Kostyuk — serve +55 / return +51 vs WTA avg (68 matches)
This is a probability estimate, not a guaranteed result. Late information can change the forecast.
Original model version: tennis-skill-structured-v2. The published forecast and evidence cutoff remain on record.
Why the model chose this outcome
These factors were recorded with the forecast before the game. They describe the model inputs; they are not a guarantee.
- Ekaterina Alexandrova — serve +47 / return +23 vs WTA avg (63 matches)
- Marta Kostyuk — serve +55 / return +51 vs WTA avg (68 matches)
- Serve model on hard (assumed): Ekaterina Alexandrova holds 56% of service points, Marta Kostyuk 61% — best of 3.
What could change the forecast
Surface/format not identified from the tournament; assumed hard-court best-of-3.
This is a probability estimate, not a guaranteed result. Late information can change the forecast.
Result
LOST · Ekaterina Alexandrova won
Official settlement recorded Nov 4, 2026, 11:24 AM UTC. The pregame forecast above was not rewritten.
Match Winner: Ekaterina Alexandrova Win28.3% · won
Match Winner: Marta Kostyuk Win71.7% · lost