Portland Timbers @ San Jose Earthquakes
PTAwayPortland Timbers32%
@SJEHomeSan Jose Earthquakes42%
Model PickSan Jose Earthquakes 42%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 3 qualitative
AI Summary grounded in real data · zero hallucination
We favor a San Jose Earthquakes victory, driven primarily by their Home Advantage and improved Defense (goals against/game). However, as our model does not consistently beat the market long-term, investors should remain cautious given the marginal edge in Shots on Target %.
Logistic-regression statistical model — predicts Portland Timbers vs San Jose Earthquakes by accumulating the log-odds contributions of 12 proven structured metrics. Only structured metrics enter the probability; qualitative and folklore factors get a label only. Predictions are sealed with SHA-256 before the game.
Model factor contribution How the 42% home win was derived
Home Advantage+3.7
Season Form (record)+0.7
Attack (goals/game)-0.2
Defense (goals against/game)+2.4
Shots on Target %+0.6
Baseline 50% → final home win57.2%
※ This is the head-to-head home-win probability (home vs away). After carving out the 26% draw share, the 3-way home probability shown above is 42%.
Each factor's log-odds contribution accumulated · only structured metrics reflected (qualitative/folklore excluded) · each %p converts log-odds to probability, so it's non-linear — a simple sum may not exactly equal (final − baseline)
Structured metric analysis 12 metrics · fully disclosed
| Metric | Analysis (home vs away) | Source |
|---|---|---|
| Home Advantage | San Jose Earthquakes at home — MLS home-field edge applied | ESPN MLS |
| Season Form (record) | Home San Jose Earthquakes 12-6-8 vs Away Portland Timbers 9-5-12 | ESPN MLS |
| Home/Away Split | Home team's home record ? · away team's away record ? | ESPN MLS |
| Recent Form | Home DWWDD vs Away LLDWL (recent results) | ESPN MLS |
| Attack (goals/game) | Home 1.77 vs Away 1.81 — goals per game | ESPN MLS |
| Defense (goals against/game) | Home 1.46 vs Away 1.85 — goals conceded per game (lower is better) | ESPN MLS |
| Shots on Target % | Home 37.18% vs Away 33.05% — share of total shots on target (shot quality) | ESPN MLS |
| Finishing (conversion rate) | Home 14.7% vs Away 15% — shot-to-goal conversion (finishing efficiency) | ESPN MLS |
| Possession % | Home 49.29% vs Away 50.79% — ball control (game-control style) | ESPN MLS |
| Pass Accuracy % | Home 82.58% vs Away 86.69% — build-up stability | ESPN MLS |
| Tackle Success % | Home 67.29% vs Away 62.6% — pressing-defense efficiency | ESPN MLS |
| xG (Expected Goals) | Not available on ESPN's free tier — will be added when a paid xG source is connected. Currently proxied by shots on target and conversion rate | ESPN MLS |
Qualitative & folklore factors 3 factors · fully disclosed
Qualitative · Roberts in Peak Form
San Jose defender Reid Roberts is in stellar form, recently earning Team of the Matchday honors and scoring a crucial goal to boost team morale.
Basis: LLM · news · Reid Roberts Selected to MLS Team of the Matchday,
Qualitative · Timbers Offensive Slump
The Timbers are struggling to find the back of the net, coming off a scoreless defeat against Atlanta United that highlights their current offensive stagnation.
Basis: LLM · news · Alexey Miranchuk, Lucas Hoyos lead Atlanta United
Qualitative · Quakes' Resilient Momentum
Despite facing a red card, San Jose showed great resilience by rallying to draw against LAFC, signaling a high level of competitive grit.
Basis: LLM · news · Quakes rally back to draw LAFC, RED CARD - Aaron L
12 source headlines (auto-collected · basis disclosed)
- San Jose Earthquakes Defender Reid Roberts Selected to MLS Team of the Matchday
- San Jose Earthquakes v Portland Timbers Odds
- San Jose Earthquakes vs Portland Timbers: Predictions, Picks, Odds & Lineups
- Alexey Miranchuk, Lucas Hoyos lead Atlanta United to 1-0 victory over Timbers
- Where to watch San Jose Earthquakes today? Live soccer streams & TV channel for upcoming games
- Reid Roberts hits point-saving golazo for Quakes | Energy Moment
- Quakes rally back to draw LAFC
- San Jose Earthquakes - Los Angeles Football Club 0 - 1 | RED CARD - Aaron Long
Frequently asked questions This game's prediction summary
Portland Timbers vs San Jose Earthquakes — who's more likely to win?
SealedSlate's logistic-regression statistical model gives San Jose Earthquakes a 42% chance to win (Home 42% · Draw 26% · Away 32%). MLS · 2026-09-27 11:30 KST.
How was the 57.2% home-win probability calculated?
Starting from a 50% baseline, we additively accumulate the log-odds contributions of 12 proven structured statistical metrics to reach the final 57.2%. Each factor's %p contribution is fully disclosed on the page; qualitative and folklore factors are not reflected in the probability.
Can this prediction be altered later?
No. Every prediction is sealed with a SHA-256 hash before the game starts and permanently recorded in the track record, making after-the-fact changes impossible. SealedSlate runs a transparent ledger that never inflates the hit rate and leaves missed predictions exactly as they were.
We don't compete on hit rate — every factor is fully disclosed and labeled. Only 📊 structured stats feed the probability (each factor's contribution shown in %p); ⚔️🔮 are context to weigh. Predictions are locked and sealed before the game — verify the hits directly on the track record.