MLS · Thursday, 20 August 2026 · 03:30. Our rating makes this 62% to go over 2.5 goals, so our lean is over. The MLS average is 60%.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 62% | 38% | Over |
| Over 3.5 goals | 40% | 60% | no pick |
| Both teams to score | 60% | 40% | Yes |
The result model puts Portland Timbers at 48%, the draw at 23% and San Diego at 28%, from expected goals of 1.78 and 1.32.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 1.36 | 70% | 62% | -7% |
| Under 2.5 goals | 3.10 | 30% | 38% | +7% |
| Both teams to score | 1.36 | 69% | 60% | -9% |
Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.
Match odds: Portland Timbers 1.95, draw 4.00, San Diego 3.20.
The league sets the starting point. MLS has produced over 2.5 goals in 60% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Portland Timbers have 14 in 19 this season (8 of 9 at home), San Diego 11 in 19 (3 of 9 away). Those records are pulled toward the league rate with the weight of about 32 matches — enough that two or three unusual games cannot swing a rating — giving 68% 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 61%.
Head to head. These sides have met 6 times in three years, producing over 2.5 goals in 83%. That nudges the number 10% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 64%.
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 60%, from expected goals of 1.78 for Portland Timbers and 1.32 for San Diego. Folding in 30% of that view gives 62%.
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 |
|---|---|---|---|---|
| Portland Timbers | 19 | 74% | 47% | 74% |
| San Diego | 19 | 58% | 42% | 53% |
More: Portland Timbers season stats · San Diego season stats · MLS table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.