MLB matchup analysis
Brewers vs Pirates Prediction, Odds and Model Pick
Tuesday, September 15, 2026 at PNC Park · 6:40 PM ET
LyDia prediction: Milwaukee Brewers moneyline
The case for Milwaukee Brewers
The case for Pittsburgh Pirates
What to watch
Why the setup score is what it is
Why the price is what it is
Read the full model output
Milwaukee Brewers is an official moneyline pick because it clears both gates: 69.5% model win probability and 9.7/10 Lab Rating. LyDia projects 69.5% against a 55.3% no-vig market number, a 14.3% model edge at -130. Milwaukee Brewers owns the starting pitcher edge by 16 points. Bullpen read: Adds caution. Milwaukee Brewers's pen efficiency: Below average (3.5/10). Bullpen fatigue moved this probability down 20.0 points from 89.6% (starting pitcher and team strength only) to 69.5%. Lineup check: Milwaukee Brewers is swinging a hot bat (+0.114 OPS); Pittsburgh Pirates is a touch below its season form (-0.022 OPS). Recent form supports this side and is included in the unified run projection.
Game information
| Matchup | Milwaukee Brewers at Pittsburgh Pirates |
|---|---|
| Date | Tuesday, September 15, 2026 |
| First pitch | 6:40 PM ET |
| Venue | PNC Park |
| Starting pitchers | Jacob Misiorowski vs Lake Bachar |
| Weather | Game-time forecast: 73°F, 0% precipitation chance, 5 mph wind from SE. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | Brewers | Pirates |
|---|---|---|
| Pitching plan | Traditional starter | Opener / bullpen game |
| Expected innings | 6 | 2⅓ |
| Throws | R | R |
| LyDia pitcher score (higher is better) | 85 | 69 |
| ERA (lower is better) | 1.89 | 3.54 |
| WHIP (lower is better) | 0.81 | 1.13 |
| K/9 (higher is better) | 13.1 | 9.3 |
| K-BB% (higher is better) | 31.6% | 14.6% |
| K% (higher is better) | 38.2% | 25.0% |
| BB% (lower is better) | 6.6% | 10.4% |
| BB/9 (lower is better) | 2.3 | 3.9 |
| HR/9 (lower is better) | 0.8 | 1.4 |
| Ground-ball rate | 48.2% | 44.8% |
| Fly-ball rate | 51.8% | 55.2% |
Pitching plan edge: LyDia gives Jacob Misiorowski the edge over the Pittsburgh Pirates pitching plan (32 points on LyDia's pitcher score). Lake Bachar is projected for only 2⅓ innings, with the Pittsburgh Pirates bullpen covering the rest -- this compares Jacob Misiorowski's own line against the Pittsburgh Pirates blended starting-pitcher-and-bullpen quality, not two starters directly.
Blended read: For the Pittsburgh Pirates, the bullpen is projected to throw more of the game than Lake Bachar (about 2⅓ innings for the starter), so LyDia grades that side on a whole-game effective ERA of 4.91 rather than Lake Bachar's own 3.54. Whole-game, that is 3.83 for the Milwaukee Brewers against 4.91 on the other side, so the blended read leans Milwaukee Brewers.
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 →Brewers are 6-4 in their last 10 and averaging 7.1 runs per game over the last 15 days; Pirates are 7-3 in their last 10 and averaging 3.9 runs per game over the last 15 days. On the season Brewers carry the better run differential per game (+1.30 against +0.17).
| Metric | Brewers | Pirates |
|---|---|---|
| Last 10 | 6-4 | 7-3 |
| Last 10 by venue (away team on the road, home team at home) | 5-5 on the road | 7-3 at home |
| OPS, last 15 days | 0.862 | 0.709 |
| wOBA, last 15 days (hot/cold read) | 0.374 | 0.318 |
| Runs per game, last 15 days | 7.1 | 3.9 |
| K% last 15 days (lower is better) | 22.5% | 18.0% |
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 | Brewers | Pirates |
|---|---|---|
| OPS | 0.839 (+0.091 vs szn) | 0.663 (-0.068 vs szn) |
| Runs per game | 6.70 (+1.518 vs szn) | 3.62 (-1.146 vs szn) |
| wOBA (model offense input) | 0.366 (+0.036 vs szn) | 0.298 (-0.026 vs szn) |
| K% (lower is better) | 21.1% | 23.3% (-0.7% vs szn) |
Over the last 30 days the Brewers have been the better offense, 0.366 wOBA to 0.298. They are running hot against their own season line (+0.036 wOBA).
Season profile
Full Stats page →| Metric | Brewers | Pirates |
|---|---|---|
| Record | 93-57 | 75-75 |
| Run differential / game (team quality) | +1.30 | +0.17 |
| Runs scored / game (offense, season) | 5.19 | 4.79 |
| Runs allowed / game (defense, season, lower better) | 3.89 | 4.61 |
| Season OPS | 0.748 | 0.731 |
| K% season (lower is better) | 21.6% | 24.0% |
| OPS vs opposing hand (season) | 0.764 | 0.752 |
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. Brewers and Pirates 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 | Brewers | Pirates |
|---|---|---|
| Fatigue | 7.6/10, Tired | 6.0/10, Normal |
| Efficiency | 3.5/10, Below average | 3.9/10, Below average |
| Combined risk | 8.4/10, High risk | 6.6/10, Tired |
| Relief innings, last 7 days | 20.0 | 26.7 |
| Back-to-back arms | 8 | 5 |
| 7-day ERA | 6.30 | 5.74 |
| 7-day WHIP | 1.45 | 1.39 |
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 projects 5.0 runs above the market total. A research lean still requires a setup rating of at least 7.0/10. Team totals remain research-only until their graded sample is established.
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