San Diego FC vs Seattle Sounders prediction: October 25, Seattle at 2.95

Home Strength Meets Seattle Resistance

San Diego's 2026 MLS profile is stronger than their 34 points suggest: 49.04 xG and 49.16 xGA through 30 matches, with 26.04 xG in 15 home games. Seattle sit closer to expectation at 44.13 xG and 44.30 xGA, while their away attack has produced 18.30 xG in 15 matches. After time-weighting recent xG and scaling attacking strength with non-penalty xG, San Diego retain the higher single-match win probability, but Seattle's defensive baseline keeps the gap narrow.
The opponent-adjusted scoring inputs settle near 1.58 expected goals for San Diego and 1.48 for Seattle.

Availability Keeps the Margin Narrow

The starting XIs are not confirmed, so no unsupported player-impact, goalkeeper, or chemistry adjustment is added. The current MLS availability report lists Osvald Søe out for San Diego and Pedro de la Vega, Nikola Petković, and Paul Rothrock out for Seattle.
Those absences add uncertainty, but they do not overturn the team-level distribution; the squad adjustment is therefore treated qualitatively rather than as an invented numerical bonus or penalty.

Correlated Score Distribution

A correlated low-score model estimated from the teams' 2026 score histories, followed by 200,000 Monte Carlo draws, produces about 41.0% San Diego, 22.7% draw, and 36.3% Seattle. The probabilities are uncalibrated because no paired historical forecast-result calibration set is available.
The independent-score and season-only sensitivity checks leave Seattle near 35.7% to 36.0%, so the direction is stable enough for a price comparison. The representative away-win score is 1-2. Under 3.5 goals is about 63%, while Seattle +0.5 is about 59% at the main San Diego -0.5 handicap line.

Price Decides the Pick

The observed 1X2 prices of 2.24, 4.00, and 2.95 normalize to market probabilities near 43.1%, 24.1%, and 32.7%. Against the model's 36.3% Seattle estimate, Seattle at 2.95 carries a nominal expected return of about +7.1%; independent and season-only variants remain modestly positive.
Seattle +0.5 at 1.70 is close to fair and does not offer the same margin. Under 3.5 at 1.81 is also supported by the distribution, but the default registration remains 1X2. Pick: Seattle Sounders to win.

San Diego FC 1 - 2 Seattle Sounders / Major League Soccer