J3 League · Saturday, 8 August 2026. Final score 0–0 (half-time 0–0). Before kick-off we rated it 56% under 2.5 goals — the match finished with 0, 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 | 20% | 80% | Under |
| Over 3.5 goals | 8% | 92% | no pick |
| Both teams to score | 8% | 92% | No |
The result model puts Sagamihara at 32%, the draw at 28% and Roasso Kumamoto at 40%, from expected goals of 1.06 and 1.22.
The league sets the starting point. J3 League has produced over 2.5 goals in 0% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Sagamihara have 0 in 0 this season, Roasso Kumamoto 0 in 0. Those records are pulled toward the league rate with the weight of about 32 matches — enough that two or three unusual games cannot swing a rating — giving 0% and 0%.
Last season still counts, briefly. With 0 and 0 games played this season, last season's rates are still blended in and fade out entirely by game 14 — the point at which our testing showed they stop adding accuracy. That moves the two figures to 37% and 0%.
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 15%.
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 40%, from expected goals of 1.06 for Sagamihara and 1.22 for Roasso Kumamoto. Folding in 30% of that view gives 22%.
Season opener. One of these sides has not played a league game yet. Openers run about 2.5 points under their league's norm, measured across 2,727 of them, so the rating is docked to 20%.
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 |
|---|---|---|---|---|
| Sagamihara | 0 | — | — | — |
| Roasso Kumamoto | 0 | — | — | — |
More: Sagamihara season stats · Roasso Kumamoto season stats · J3 League table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.