MLB matchup analysis
Mariners vs Angels Prediction, Odds and Model Pick
Tuesday, September 15, 2026 at Angel Stadium · 9:38 PM ET
LyDia prediction: Seattle Mariners moneyline
The case for Seattle Mariners
The case for Los Angeles Angels
Why the setup score is what it is
Why the price is what it is
Read the full model output
Seattle Mariners is an official moneyline pick because it clears both gates: 73.1% model win probability and 8.3/10 Lab Rating. LyDia projects 73.1% against a 55.4% no-vig market number, a 17.8% model edge at -130. Seattle Mariners owns the starting pitcher edge by 21 points. Bullpen read: Neutral. Seattle Mariners's pen efficiency: Below average (3.7/10). Lineup check: Seattle Mariners is swinging a hot bat (+0.125 OPS); Los Angeles Angels is near its season form (+0.003 OPS). Recent form supports this side and is included in the unified run projection.
Final result
Mariners 1, Angels 2
How the analysis held up
Los Angeles Angels won. LyDia's model favored the other side.
Logan Gilbert (Seattle Mariners) was LyDia's favored starter by pitcher score, but Ryan Johnson actually pitched better tonight: 6.0 IP, 1 ER (1.50 ERA) against 6.0 IP, 2 ER (3.00 ERA). The edge did not show up in this game.
The Seattle Mariners bullpen was not flagged pregame, but it had a night worth noting: 0 earned runs allowed over 2.0 relief innings (0.00 ERA) — quietly better than the pregame read implied.
The Los Angeles Angels bullpen was not flagged pregame, but it had a night worth noting: 0 earned runs allowed over 3.0 relief innings (0.00 ERA) — quietly better than the pregame read implied.
Seattle Mariners scored 1, 4.4 fewer than the 5.4 pregame projection.
Likely driver: Seattle Mariners's offense scored 4.4 fewer runs than projected, and the Los Angeles Angels bullpen quietly shut the game down (0.00 ERA over 3.0 innings), unflagged pregame.
Game information
| Matchup | Seattle Mariners at Los Angeles Angels |
|---|---|
| Date | Tuesday, September 15, 2026 |
| First pitch | 9:38 PM ET |
| Venue | Angel Stadium |
| Starting pitchers | Logan Gilbert vs Ryan Johnson |
| Weather | Game-time forecast: 73°F, 0% precipitation chance, 7 mph wind from SW. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | Mariners | Angels |
|---|---|---|
| Pitching plan | Traditional starter | Traditional starter |
| Expected innings | 6 | 5 |
| Throws | R | R |
| LyDia pitcher score (higher is better) | 73 | 52 |
| ERA (lower is better) | 3.72 | 5.12 |
| WHIP (lower is better) | 1.05 | 1.36 |
| K/9 (higher is better) | 9.8 | 6.7 |
| K-BB% (higher is better) | 20.8% | 6.6% |
| K% (higher is better) | 27.3% | 17.4% |
| BB% (lower is better) | 6.4% | 10.7% |
| BB/9 (lower is better) | 2.3 | 4.2 |
| HR/9 (lower is better) | 1.4 | 1.9 |
| Ground-ball rate | 42.9% | 40.3% |
| Fly-ball rate | 57.1% | 59.7% |
Pitcher edge: LyDia gives Logan Gilbert a 21-point edge over Ryan Johnson, driven mainly by K-BB% (20.8% vs 6.6%) and BB/9 (2.3 vs 4.2).
How to read this: the scorecards above name the starters; every number lives in this table.
Strikeout Projections Full strikeout projections →
Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.
Recent form
Full Stats page →Neither side is playing well. Mariners are 4-6 in their last 10 and averaging 6.1 runs per game over the last 15 days; Angels are 4-6 in their last 10 and averaging 4.2 runs per game over the last 15 days. Season run differential separates them by almost nothing (-0.40 against -0.48).
| Metric | Mariners | Angels |
|---|---|---|
| Last 10 | 4-6 | 4-6 |
| Last 10 by venue (away team on the road, home team at home) | 3-7 on the road | 3-7 at home |
| OPS, last 15 days | 0.817 | 0.683 |
| wOBA, last 15 days (hot/cold read) | 0.358 | 0.303 |
| Runs per game, last 15 days | 6.1 | 4.2 |
| K% last 15 days (lower is better) | 21.4% | 27.7% |
Last 15 days only. Hot and cold streaks for all 30 teams live on the Stats page.
30-day offense
Full offense tool →| Last 30 days | Mariners | Angels |
|---|---|---|
| OPS | 0.720 (+0.028 vs szn) | 0.643 (-0.037 vs szn) |
| Runs per game | 4.68 (+0.619 vs szn) | 3.89 (-0.164 vs szn) |
| wOBA (model offense input) | 0.320 (+0.012 vs szn) | 0.287 (-0.016 vs szn) |
| K% (lower is better) | 24.1% (+0.9% vs szn) | 26.2% (+0.9% vs szn) |
Over the last 30 days the Mariners have been the better offense, 0.320 wOBA to 0.287. They are running hot against their own season line (+0.012 wOBA). Angels are striking out at 26.2% over the window — something the opposing starter can lean on.
Season profile
Full Stats page →| Metric | Mariners | Angels |
|---|---|---|
| Record | 70-81 | 57-93 |
| Run differential / game (team quality) | -0.40 | -0.48 |
| Runs scored / game (offense, season) | 4.06 | 4.05 |
| Runs allowed / game (defense, season, lower better) | 4.46 | 4.54 |
| Season OPS | 0.692 | 0.680 |
| K% season (lower is better) | 23.2% | 25.4% |
| OPS vs opposing hand (season) | 0.714 | 0.676 |
Season-long team quality, not recent form. Run differential and run environment come from the season standings; splits for all 30 teams live on the Stats page, including the run environment table.
The Map
Full interactive map →Every team on today's slate, on any two axes you pick. Mariners and Angels are highlighted.
Bullpen matchup
Full Bullpen Fatigue Index →Risk is what the model actually uses: fatigue blended with how well the pen has pitched. High fatigue with high efficiency is a tired pen that is still getting outs.
| Metric | Mariners | Angels |
|---|---|---|
| Fatigue | 5.2/10, Normal | 5.4/10, Normal |
| Efficiency | 3.7/10, Below average | 4.2/10, Below average |
| Combined risk | 5.9/10, Normal | 5.8/10, Normal |
| Relief innings, last 7 days | 23.0 | 19.0 |
| Back-to-back arms | 4 | 4 |
| 7-day ERA | 5.87 | 5.21 |
| 7-day WHIP | 1.52 | 1.42 |
Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.
Run total projection
Full Totals Projections →The model and market are close. Team totals remain research-only until their graded sample is established.
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