Primera Nacional · Saturday, 24 October 2026 · 20:00. Our rating makes this 33% to go over 2.5 goals, so our lean is under. The Primera Nacional average is 31%.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 33% | 67% | Under |
| Over 3.5 goals | 12% | 88% | no pick |
| Both teams to score | 40% | 60% | No |
The result model puts Ferro Carril Oeste at 39%, the draw at 35% and Chaco For Ever at 26%, from expected goals of 0.96 and 0.73.
The league sets the starting point. Primera Nacional has produced over 2.5 goals in 31% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Ferro Carril Oeste have 11 in 34 this season (5 of 17 at home), Chaco For Ever 12 in 34 (5 of 17 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 32% and 33%.
Last season still counts, briefly. With 34 and 34 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 31% and 33%.
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 32%.
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 24%, from expected goals of 0.96 for Ferro Carril Oeste and 0.73 for Chaco For Ever. Folding in 30% of that view gives 29%.
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 33%.
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 |
|---|---|---|---|---|
| Ferro Carril Oeste | 34 | 32% | 15% | 38% |
| Chaco For Ever | 34 | 35% | 12% | 44% |
More: Ferro Carril Oeste season stats · Chaco For Ever season stats · Primera Nacional table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.