WTA · TENNIS
Sakkari vs Kostyuk: Seer9 prediction and result
Game time
WTA · Oct 13, 6:00 AM UTC
SakkarivsKostyuk
Marta Kostyuk Win
Maria Sakkari — serve +19 / return +21 vs WTA avg (64 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.
- Maria Sakkari — serve +19 / return +21 vs WTA avg (64 matches)
- Marta Kostyuk — serve +55 / return +51 vs WTA avg (68 matches)
- Serve model on hard (assumed): Maria Sakkari holds 53% of service points, Marta Kostyuk 60% — 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 · Maria Sakkari won
Official settlement recorded Oct 13, 2026, 4:26 PM UTC. The pregame forecast above was not rewritten.
Match Winner: Maria Sakkari Win20.2% · won
Match Winner: Marta Kostyuk Win79.8% · lost