MLB matchup analysis
Brewers vs Pirates Prediction, Odds and Model Pick
Thursday, September 17, 2026 at PNC Park · 12:35 PM ET
LyDia prediction: Milwaukee Brewers moneyline
The case for Milwaukee Brewers
The case for Pittsburgh Pirates
Why it is not official
Why the setup score is what it is
Why the price is what it is
Read the full model output
Milwaukee Brewers remains on the watchlist. Lab Rating 7.2/10: conviction 6.03, pitching plan 18.67, offense 47.35. Market pricing was unavailable. Milwaukee Brewers owns the starting pitcher edge by 11 points. Bullpen read: Supports LyDia side. Milwaukee Brewers's pen efficiency: Average (4.9/10). Bullpen fatigue moved this probability down 16.4 points from 83.5% (starting pitcher and team strength only) to 67.1%. Lineup check: Milwaukee Brewers is swinging a hot bat (+0.075 OPS); Pittsburgh Pirates is a touch below its season form (-0.037 OPS). Recent form supports this side and is included in the unified run projection.
Final result
Brewers 4, Pirates 7
How the analysis held up
Pittsburgh Pirates won. LyDia's model favored the other side.
Wilber Dotel (No clear pitching-plan edge), the starter LyDia's pitcher score favored, actually outpitched Kyle Harrison: 2.0 IP, 1 ER (4.50 ERA) against 1.2 IP, 4 ER (21.60 ERA). The edge held up.
The Milwaukee Brewers bullpen was flagged as elevated risk pregame (Tired). In relief it actually allowed 2 earned runs over 6.1 innings (2.84 ERA) — the risk read did not show up on the scoreboard tonight. Note: 1 of the runs charged to the Milwaukee Brewers pitching staff overall was unearned — not something the bullpen's stuff should be blamed for.
The Pittsburgh Pirates bullpen was flagged as elevated risk pregame (High risk). In relief it actually allowed 3 earned runs over 7.0 innings (3.86 ERA) — the risk read did not show up on the scoreboard tonight.
Likely driver: Kyle Harrison, the pick's own starter, was rocked for a 21.60 ERA.
Game information
| Matchup | Milwaukee Brewers at Pittsburgh Pirates |
|---|---|
| Date | Thursday, September 17, 2026 |
| First pitch | 12:35 PM ET |
| Venue | PNC Park |
| Starting pitchers | Kyle Harrison vs Wilber Dotel |
| Weather | Game-time forecast: 80°F, 13% precipitation chance, 7 mph wind from SW. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | Brewers | Pirates |
|---|---|---|
| Pitching plan | Traditional starter | Opener / bullpen game |
| Expected innings | 4⅔ | 2 |
| Throws | L | R |
| LyDia pitcher score (higher is better) | 64 | 53 |
| ERA (lower is better) | 4.25 | 4.82 |
| WHIP (lower is better) | 1.34 | 1.39 |
| K/9 (higher is better) | 10.9 | 9.2 |
| K-BB% (higher is better) | 20.7% | 14.4% |
| K% (higher is better) | 27.8% | 23.8% |
| BB% (lower is better) | 7.2% | 9.4% |
| BB/9 (lower is better) | 2.8 | 3.6 |
| HR/9 (lower is better) | 1.6 | 0.5 |
| Ground-ball rate | 43.1% | 52.9% |
| Fly-ball rate | 56.9% | 47.1% |
Pitching plan edge: LyDia gives the Pittsburgh Pirates pitching plan the edge over Kyle Harrison (1 points on LyDia's pitcher score). Wilber Dotel is projected for only 2 innings, with the Pittsburgh Pirates bullpen covering the rest -- this compares the Pittsburgh Pirates blended starting-pitcher-and-bullpen quality against Kyle Harrison's own line, not two starters directly.
Blended read: For the Pittsburgh Pirates, the bullpen is projected to throw more of the game than Wilber Dotel (about 2 innings for the starter), so LyDia grades that side on a whole-game effective ERA of 4.19 rather than Wilber Dotel's own 4.82. Whole-game, that is 4.19 for the Pittsburgh Pirates against 4.40 on the other side, so the blended read leans Pittsburgh Pirates.
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 7-3 in their last 10 and averaging 6.8 runs per game over the last 15 days; Pirates are 5-5 in their last 10 and averaging 3.3 runs per game over the last 15 days. On the season Brewers carry the better run differential per game (+1.29 against +0.16).
| Metric | Brewers | Pirates |
|---|---|---|
| Last 10 | 7-3 | 5-5 |
| Last 10 by venue (away team on the road, home team at home) | 5-5 on the road | 6-4 at home |
| OPS, last 15 days | 0.820 | 0.695 |
| wOBA, last 15 days (hot/cold read) | 0.359 | 0.311 |
| Runs per game, last 15 days | 6.8 | 3.3 |
| K% last 15 days (lower is better) | 23.0% | 20.0% |
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 | 0.830 (+0.083 vs szn) | 0.681 (-0.051 vs szn) |
| Runs per game | 6.57 (+1.395 vs szn) | 3.54 (-1.233 vs szn) |
| wOBA (model offense input) | 0.363 (+0.033 vs szn) | 0.305 (-0.020 vs szn) |
| K% (lower is better) | 21.1% | 23.8% |
Over the last 30 days the Brewers have been the better offense, 0.363 wOBA to 0.305. They are running hot against their own season line (+0.033 wOBA).
Season profile
Full Stats page →| Metric | Brewers | Pirates |
|---|---|---|
| Record | 95-57 | 75-77 |
| Run differential / game (team quality) | +1.29 | +0.16 |
| Runs scored / game (offense, season) | 5.18 | 4.77 |
| Runs allowed / game (defense, season, lower better) | 3.89 | 4.61 |
| Season OPS | 0.745 | 0.732 |
| K% season (lower is better) | 21.6% | 24.1% |
| OPS vs opposing hand (season) | 0.762 | 0.690 |
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 | 7.5/10, Tired | 8.2/10, High risk |
| Efficiency | 4.9/10, Average | 3.0/10, Below average |
| Combined risk | 7.6/10, Tired | 9.2/10, High risk |
| Relief innings, last 7 days | 20.3 | 27.7 |
| Back-to-back arms | 8 | 5 |
| 7-day ERA | 3.98 | 6.83 |
| 7-day WHIP | 1.43 | 1.55 |
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 2.7 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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