Pittsburgh Pirates vs Houston Astros Prediction
Expert prediction, odds analysis, and best bet for Pittsburgh Pirates vs Houston Astros on May 31, 2026.
Win Probability
Best Bet
Current Odds
| Team | Moneyline | Run Line | Total | Impl. Prob. |
|---|---|---|---|---|
Pittsburgh PiratesAway | N/A | N/A | N/A | 0% |
Houston AstrosHome | N/A | N/A | N/A | 0% |
Statistical Analysis
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No live game data found — prediction built from team constants only.
How This Prediction Was Made
Show model inputs ▼
Team Data Inputs
| Metric | Pirates | Astros |
|---|---|---|
| Season Win% | 50.0% | 50.0% |
| Games Played | 0 | 0 |
| Season RF/G | 4.30 | 4.30 |
| Season RA/G | 4.30 | 4.30 |
| Run Diff/G | 0.00 | 0.00 |
| Last-5 RF/G | 4.30 | 4.30 |
| Last-5 RA/G | 4.30 | 4.30 |
| Venue RF/G | 4.30 | 4.30 |
| Venue RA/G | 4.30 | 4.30 |
| Venue Win% | 50.0% | 50.0% |
| Form (last-5) | 3/5 W | 3/5 W |
| Rest Days | 1 | 1 |
| Games (Last 7d) | 0 | 0 |
| Data Quality | 0% | 0% |
Run Projection Formula
Projected runs = weighted blend of offense + opponent defense (season & recent) + venue split.
| Component | Value | Wt | Contrib |
|---|---|---|---|
| Season RF/G | 4.30 | 30% | 1.290 |
| Opp Season RA/G | 4.30 | 30% | 1.290 |
| Recent RF/G (5G) | 4.30 | 15% | 0.645 |
| Opp Recent RA/G | 4.30 | 15% | 0.645 |
| Venue RF/G | 4.30 | 5% | 0.215 |
| Opp Venue RA/G | 4.30 | 5% | 0.215 |
| Projected runs | 4.3 | ||
| Component | Value | Wt | Contrib |
|---|---|---|---|
| Season RF/G | 4.30 | 30% | 1.290 |
| Opp Season RA/G | 4.30 | 30% | 1.290 |
| Recent RF/G (5G) | 4.30 | 15% | 0.645 |
| Opp Recent RA/G | 4.30 | 15% | 0.645 |
| Venue RF/G | 4.30 | 5% | 0.215 |
| Opp Venue RA/G | 4.30 | 5% | 0.215 |
| Home bonus | 0.12 | — | 0.120 |
| Projected runs | 4.4 | ||
Win Probability Blend (Home)
Three signals are blended to produce the final home win probability.
| Signal | Prob | Weight | Contribution |
|---|---|---|---|
| Run margin (projected score diff) | 51.0% | 65% | 33.15% |
| Team strength (win% + venue) | 52.0% | 25% | 13.00% |
| Recent form (last-5 W/L) | 50.0% | 10% | 5.00% |
| Final home win probability | 52% | ||
Confidence Score Breakdown
| Factor | Points |
|---|---|
| Base (win probability distance from 50%) | +51 |
| Run margin bonus (larger margin = more predictable) | +0.8 |
| Data quality adjust (more game history = tighter estimates) | -10 |
| Form agreement (recent form aligns with season record) | +5 |
| Market odds available (confirms edge vs vig) | -5 |
| Final confidence score (medium) | 55 |
No market odds were available for this game — edge calculations require live lines. Picks above are model leans only.
Pittsburgh Pirates vs Houston Astros Prediction — Expert Analysis
Our model projects Houston Astros to win this matchup with a 52% win probability. The predicted final score is Pirates 3.8 – Astros 4.5.
Pittsburgh Pirates come into this game with a 31-28 record, good for a 52.5% winning percentage. Their recent form reads WWLLW (W=win, L=loss).
Houston Astros are 27-33 at home this season, with a 45.0% overall win rate. Home field advantage gives them an additional 3-4% boost to their projected win probability.
Our best bet for this matchup is the Lean: Houston Astros ML, which carries a medium confidence rating based on current statistical inputs.