J3 League · Sunday, 16 August 2026. Final score 2–3 (half-time 1–0). Rebuilt from the season as it stood that morning, our rating would have been 48% 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 | 48% | 52% | Under |
| Over 3.5 goals | 24% | 76% | no pick |
| Both teams to score | 52% | 48% | Yes |
The result model puts Matsumoto Yamaga at 47%, the draw at 27% and Biwako Shiga at 26%, from expected goals of 1.47 and 1.03.
The league sets the starting point. J3 League 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. Matsumoto Yamaga have 0 in 1 this season, Biwako Shiga 1 in 1. 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 45% and 49%.
Last season still counts, briefly. With 1 and 1 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 44% and 49%.
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 46%.
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 46%, from expected goals of 1.47 for Matsumoto Yamaga and 1.03 for Biwako Shiga. Folding in 30% of that view gives 46%.
Calibration. Tested against 97,729 past matches, our ratings below 55% have run consistently too pessimistic — a figure in the high 30s, for instance, has come in about four points higher. So ratings in that range are lifted part-way back, giving 48%.
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 |
|---|---|---|---|---|
| Matsumoto Yamaga | 1 | 0% | 0% | 0% |
| Biwako Shiga | 1 | 100% | 0% | 0% |
More: Matsumoto Yamaga season stats · Biwako Shiga season stats · J3 League table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.