Primera Nacional · Saturday, 31 October 2026 · 20:00. Our rating makes this 39% to go over 2.5 goals, so our lean is under. The Primera Nacional average is 31%.
| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 39% | 61% | Under |
| Over 3.5 goals | 15% | 85% | no pick |
| Both teams to score | 43% | 57% | No |
The result model puts Chaco For Ever at 62%, the draw at 24% and Racing Cordoba at 14%, from expected goals of 1.72 and 0.67.
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. Chaco For Ever have 12 in 34 this season (7 of 17 at home), Racing Cordoba 13 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 33% and 35%.
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 33% and 35%.
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 33%.
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 43%, from expected goals of 1.72 for Chaco For Ever and 0.67 for Racing Cordoba. Folding in 30% of that view gives 36%.
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 39%.
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 |
|---|---|---|---|---|
| Chaco For Ever | 34 | 35% | 12% | 44% |
| Racing Cordoba | 34 | 38% | 9% | 41% |
Our numbers give this match a 58% chance of at least one goal before half-time and 23% of two or more. The Primera Nacional rates, last season and this season combined, are 56% and 20% (this season so far: 56% with a first-half goal, from 612 games). After the break: 67% for a goal and 30% for two or more (league 68% and 28%). Chaco For Ever's last 50 games had a first-half goal 58% of the time and a second-half goal 66%; Racing Cordoba's last 50, 64% and 64%. A goal in both halves: 39% (league 40%). Highest-scoring half: second 42%, first 28%, level 30% — close to the league's usual split, because team form says little about which half is busier. Team form says less about a single half than about a full match, so these numbers stay close to the league's.
Every match ranked the same way: first half goals today · second half goals today · goal in both halves today · tomorrow.
More: Chaco For Ever season stats · Racing Cordoba season stats · Primera Nacional table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.