Copa Sudamericana · Wednesday, 21 October 2026 · 01:30. Our rating makes this 50% to go over 2.5 goals, so our lean is under. The Copa Sudamericana average is 42%.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 50% | 50% | Under |
| Over 3.5 goals | 26% | 74% | no pick |
| Both teams to score | 54% | 46% | Yes |
The result model puts Vasco DA Gama at 31%, the draw at 27% and Boca Juniors at 42%, from expected goals of 1.33 and 1.71.
The league sets the starting point. Copa Sudamericana has produced over 2.5 goals in 42% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Vasco DA Gama have 17 in 30 this season (9 of 15 at home), Boca Juniors 12 in 30 (9 of 15 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 50% and 41%.
Last season still counts, briefly. With 30 and 30 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 50% and 40%.
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 44%.
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 59%, from expected goals of 1.33 for Vasco DA Gama and 1.71 for Boca Juniors. Folding in 30% of that view gives 49%.
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 50%.
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 |
|---|---|---|---|---|
| Vasco DA Gama | 30 | 57% | 23% | 60% |
| Boca Juniors | 30 | 40% | 17% | 53% |
More: Copa Sudamericana fixtures. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.