Czech Liga · Sunday, 20 September 2026. Final score 0–3 (half-time 0–1). Rebuilt from the season as it stood that morning, our rating would have been 51% for over 2.5 goals. This game was not captured by our pre-kick-off freeze, 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 | 51% | 49% | Over |
| Over 3.5 goals | 28% | 72% | no pick |
| Both teams to score | 52% | 48% | Yes |
The result model puts Sigma Olomouc at 42%, the draw at 28% and Sparta Praha at 30%, from expected goals of 1.34 and 1.08.
The league sets the starting point. Czech Liga has produced over 2.5 goals in 51% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Sigma Olomouc have 7 in 8 this season (3 of 3 at home), Sparta Praha 6 in 8 (3 of 4 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 60% and 57%.
Last season still counts, briefly. With 8 and 8 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 52% and 55%.
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 53%.
Head to head. These sides have met 6 times in three years, producing over 2.5 goals in 50%. 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 44%, from expected goals of 1.34 for Sigma Olomouc and 1.08 for Sparta Praha. Folding in 30% of that view gives 50%.
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 51%.
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 |
|---|---|---|---|---|
| Sigma Olomouc | 8 | 88% | 38% | 75% |
| Sparta Praha | 8 | 75% | 50% | 50% |
More: Sigma Olomouc season stats · Sparta Praha season stats · Czech Liga table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.