MLB matchup analysis
White Sox vs Red Sox Prediction, Odds and Model Pick
Thursday, August 6, 2026 at Fenway Park · 7:10 PM ET
LyDia prediction: Boston Red Sox moneyline
The case for Boston Red Sox
The case for Chicago White Sox
Read the full model output
Boston Red Sox is an official moneyline pick because it clears both gates: 61.1% model win probability and 8.0/10 Lab Rating. LyDia projects 61.1% against a 63.7% no-vig market number, a -2.6% model edge at -184. Boston Red Sox owns the starting pitcher edge by 18 points. Bullpen read: Neutral. Boston Red Sox's pen efficiency: Dominant (7.6/10). Bullpen fatigue moved this probability down 10.5 points from 71.7% (starting pitcher and team strength only) to 61.1%. Lineup check: Boston Red Sox is swinging a hot bat (+0.063 OPS); Chicago White Sox is in a cold stretch (-0.072 OPS). Recent form supports this side and is included in the unified run projection.
Game information
| Matchup | Chicago White Sox at Boston Red Sox |
|---|---|
| Date | Thursday, August 6, 2026 |
| First pitch | 7:10 PM ET |
| Venue | Fenway Park |
| Starting pitchers | Luis Castillo vs Ranger Suarez |
| Weather | Game-time forecast: 87°F, 10% precipitation chance, 5 mph wind from SW. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | White Sox | Red Sox |
|---|---|---|
| Pitching plan | Traditional starter | Traditional starter |
| Expected innings | 5 | 5 |
| Throws | R | L |
| LyDia pitcher score (higher is better) | 53 | 72 |
| ERA (lower is better) | 5.30 | 3.32 |
| WHIP (lower is better) | 1.41 | 1.17 |
| K/9 (higher is better) | 7.9 | 9.4 |
| K-BB% (higher is better) | 12.6% | 18.4% |
| K% (higher is better) | 19.7% | 25.5% |
| BB% (lower is better) | 7.2% | 7.1% |
| BB/9 (lower is better) | 2.9 | 2.6 |
| HR/9 (lower is better) | 1.5 | 0.5 |
| Ground-ball rate | 43.6% | 49.5% |
| Fly-ball rate | 56.4% | 50.5% |
Pitcher edge: LyDia gives Ranger Suarez a 19-point edge over Luis Castillo, driven mainly by HR/9 (0.52 vs 1.48) and ERA (3.32 vs 5.30).
How to read this: the scorecards above name the starters; every number lives in this table. Highlighted cells mark a gap big enough to matter. K% and BB% are strikeout and walk rate as a share of batters faced -- K-BB% is the two combined into one skill number. HR/9 is home runs allowed per nine innings. Ground-ball and fly-ball rate are neither good nor bad on their own: high ground-ball pitchers trade strikeouts for double plays and fewer home runs, and on this data source the two rates are complementary (they add to 100%), not independent reads.
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 →White Sox are 5-5 in their last 10, averaging 4.2 runs per game over the last 15 days, and hitting below their season form; Red Sox are 9-1 in their last 10, averaging 5.2 runs per game over the last 15 days, and swinging above their season form. Season run differential separates them by almost nothing (+0.35 against +0.67).
| Metric | White Sox | Red Sox |
|---|---|---|
| Last 10 | 5-5 | 9-1 |
| Last 10 by venue (away team on the road, home team at home) | 5-5 on the road | 8-2 at home |
| OPS, last 15 days | 0.647 | 0.780 |
| Runs per game, last 15 days | 4.2 | 5.2 |
| K% last 15 days (lower is better) | 25.5% | 22.4% |
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 | White Sox | Red Sox |
|---|---|---|
| OPS | 0.659 (-0.062 vs szn) | 0.791 (+0.072 vs szn) |
| Runs per game | 4.48 (-0.257 vs szn) | 5.38 (+1.025 vs szn) |
| wOBA (model offense input) | 0.292 (-0.026 vs szn) | 0.347 (+0.029 vs szn) |
| K% (lower is better) | 25.3% (+1.4% vs szn) | 21.6% |
Over the last 30 days the Red Sox have been the better offense, 0.347 wOBA to 0.292. They are running hot against their own season line (+0.029 wOBA). White Sox are striking out at 25.3% over the window — something the opposing starter can lean on.
Season profile
Full Stats page →| Metric | White Sox | Red Sox |
|---|---|---|
| Record | 59-54 | 62-51 |
| Run differential / game (team quality) | +0.35 | +0.67 |
| Runs scored / game (offense, season) | 4.72 | 4.35 |
| Runs allowed / game (defense, season, lower better) | 4.37 | 3.68 |
| Season OPS | 0.719 | 0.717 |
| K% season (lower is better) | 24.0% | 21.9% |
| OPS vs opposing hand (season) | 0.709 | 0.695 |
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. White Sox and Red Sox 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 | White Sox | Red Sox |
|---|---|---|
| Fatigue | 6.2/10, Tired | 5.8/10, Normal |
| Efficiency | 6.5/10, Effective | 7.6/10, Dominant |
| Combined risk | 5.5/10, Normal | 4.5/10, Normal |
| Relief innings, last 7 days | 26.3 | 19.7 |
| Back-to-back arms | 6 | 5 |
| 7-day ERA | 2.39 | 0.92 |
| 7-day WHIP | 1.03 | 0.86 |
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 1.8 runs below 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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