NWSL (W) · Monday, 10 August 2026. Final score 0–0 (half-time 0–0). Rebuilt from the season as it stood that morning, our rating would have been 50% for over 2.5 goals. This match is older than our frozen ratings ledger, which keeps 30 days, so that figure is a reconstruction from pre-match data rather than a number we published at the time — a distinction worth making, because only the frozen ones prove what we actually said beforehand.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 50% | 50% | Over |
| Over 3.5 goals | 28% | 72% | no pick |
| Both teams to score | 52% | 48% | Yes |
The result model puts Chicago Red Stars W at 36%, the draw at 26% and Bay FC W at 38%, from expected goals of 1.41 and 1.46.
The league sets the starting point. NWSL (W) has produced over 2.5 goals in 47% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Chicago Red Stars W have 7 in 17 this season (3 of 8 at home), Bay FC W 8 in 17 (4 of 8 away). Those records are pulled toward the league rate with the weight of about 24 matches — enough that two or three unusual games cannot swing a rating — giving 44% and 47%.
Last season still counts, briefly. With 17 and 17 games played this season, last season's rates are still blended in and fade out entirely by game 40 — the point at which our testing showed they stop adding accuracy. A single season is part luck, so each club's record is first pulled toward the league average by 34 games' weight. That moves the two figures to 48% and 46%.
The mix. Weighted 40% home side, 40% away side and 20% league — the split that beat every alternative across 30,582 matches of testing — that gives 47%.
Head to head. These sides have met 5 times in three years, producing over 2.5 goals in 60%. That nudges the number 5% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 48%.
Goal expectation. Separately a Poisson model built from attack and defence strength — using real expected-goals data where the league has it — puts this match at 55%, from expected goals of 1.41 for Chicago Red Stars W and 1.46 for Bay FC W. Folding in 30% of that view gives 50%.
This breakdown is generated from the same inputs the rating uses, so it cannot describe a calculation we did not perform. The full model is set out in the methodology.
| Team | Games | O2.5 | O3.5 | BTTS |
|---|---|---|---|---|
| Chicago Red Stars W | 17 | 41% | 18% | 18% |
| Bay FC W | 17 | 47% | 29% | 41% |
More: Chicago Red Stars W season stats · Bay FC W season stats · NWSL (W) table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.