FA WSL (W) · Sunday, 18 October 2026 · 12:00. Final score 6–2 (half-time 1–1). Before kick-off we rated it 55% over 2.5 goals — the match finished with 8, so that call landed. That rating was frozen into a version-controlled ledger before the game and has not been touched since.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 56% | 44% | Over |
| Over 3.5 goals | 35% | 65% | no pick |
| Both teams to score | 56% | 44% | Yes |
The result model puts Chelsea W at 49%, the draw at 23% and Tottenham Hotspur W at 28%, from expected goals of 1.87 and 1.36.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 1.44 | 65% | 56% | -9% |
| Under 2.5 goals | 2.62 | 35% | 44% | +9% |
| Both teams to score | 1.80 | 51% | 56% | +4% |
Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.
Match odds: Chelsea W 1.30, draw 5.50, Tottenham Hotspur W 7.50.
The league sets the starting point. FA WSL (W) has produced over 2.5 goals in 55% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Chelsea W have 2 in 5 this season (0 of 3 at home), Tottenham Hotspur W 4 in 5 (1 of 2 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 52% and 59%.
Last season still counts, briefly. With 5 and 5 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 51% and 57%.
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 54%.
Head to head. These sides have met 5 times in three years, producing over 2.5 goals in 20%. 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 53%.
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 63%, from expected goals of 1.87 for Chelsea W and 1.36 for Tottenham Hotspur W. Folding in 30% of that view gives 56%.
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 |
|---|---|---|---|---|
| Chelsea W | 5 | 40% | 20% | 20% |
| Tottenham Hotspur W | 5 | 80% | 80% | 60% |
More: Chelsea W season stats · Tottenham Hotspur W season stats · FA WSL (W) table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.