MLB matchup analysis
White Sox vs Cubs Prediction, Odds and Model Pick
Tuesday, August 18, 2026 at Wrigley Field · 8:05 PM ET
LyDia prediction: Chicago Cubs moneyline
The case for Chicago Cubs
The case for Chicago White Sox
Why it is not official
Why the setup score is what it is
Read the full model output
Chicago Cubs remains on the watchlist. Lab Rating 7.3/10: conviction 20, pitching plan 13, bullpen 13.25, offense 26.83. LyDia projects 72.5% against a 61.4% no-vig market number, a 11.1% model edge at -168. Chicago Cubs owns the starting pitcher edge by 13 points. Bullpen read: Supports LyDia side. Chicago Cubs's pen efficiency: Average (5.2/10). Pitching plan: TBD 4.5 IP + remaining bullpen 4.5 IP. Bullpen fatigue, efficiency, and combined risk grade only the innings assigned to the bullpen. Lineup check: Chicago Cubs is swinging a hot bat (+0.063 OPS); Chicago White Sox is a touch above its season form (+0.049 OPS).
Game information
| Matchup | Chicago White Sox at Chicago Cubs |
|---|---|
| Date | Tuesday, August 18, 2026 |
| First pitch | 8:05 PM ET |
| Venue | Wrigley Field |
| Starting pitchers | TBD vs Kevin Gausman |
| Weather | Game-time forecast: 77°F, 16% precipitation chance, 8 mph wind from SW. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | White Sox | Cubs |
|---|---|---|
| Pitching plan | Role unknown | Traditional starter |
| Expected innings | 4⅔ | 5⅔ |
| Throws | Not available | R |
| LyDia pitcher score (higher is better) | 50 | 63 |
| ERA (lower is better) | Not available | 4.53 |
| WHIP (lower is better) | Not available | 1.27 |
| K/9 (higher is better) | Not available | 8.9 |
| K-BB% (higher is better) | Not available | 17.0% |
| K% (higher is better) | Not available | 23.5% |
| BB% (lower is better) | Not available | 6.5% |
| BB/9 (lower is better) | Not available | 2.5 |
| HR/9 (lower is better) | Not available | 1.1 |
| Ground-ball rate | Not available | 44.5% |
| Fly-ball rate | Not available | 55.5% |
Pitcher edge: LyDia gives Kevin Gausman a 13-point edge over TBD, driven mainly by expected innings (5.6 vs 4.5).
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 →Both sides arrive in similar form. White Sox are 6-4 in their last 10, averaging 5.2 runs per game over the last 15 days, and swinging above their season form; Cubs are 6-4 in their last 10, averaging 5.9 runs per game over the last 15 days, and swinging above their season form. On the season Cubs carry the better run differential per game (+0.81 against +0.36).
| Metric | White Sox | Cubs |
|---|---|---|
| Last 10 | 6-4 | 6-4 |
| 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 | 0.778 | 0.820 |
| wOBA, last 15 days (hot/cold read) | 0.343 | 0.356 |
| Runs per game, last 15 days | 5.2 | 5.9 |
| K% last 15 days (lower is better) | 25.2% | 21.4% |
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 | Cubs |
|---|---|---|
| OPS | 0.724 | 0.795 (+0.038 vs szn) |
| Runs per game | 4.93 (+0.095 vs szn) | 5.71 (+0.540 vs szn) |
| wOBA (model offense input) | 0.320 | 0.348 (+0.013 vs szn) |
| K% (lower is better) | 24.8% (+0.8% vs szn) | 22.6% (+0.9% vs szn) |
Over the last 30 days the Cubs have been the better offense, 0.348 wOBA to 0.320. They are running hot against their own season line (+0.013 wOBA). White Sox are striking out at 24.8% over the window — something the opposing starter can lean on.
Season profile
Full Stats page →| Metric | White Sox | Cubs |
|---|---|---|
| Record | 65-59 | 73-53 |
| Run differential / game (team quality) | +0.36 | +0.81 |
| Runs scored / game (offense, season) | 4.83 | 5.17 |
| Runs allowed / game (defense, season, lower better) | 4.47 | 4.37 |
| Season OPS | 0.729 | 0.757 |
| K% season (lower is better) | 24.0% | 21.7% |
| OPS vs opposing hand (season) | 0.729 | Not available |
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 Cubs 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 | Cubs |
|---|---|---|
| Fatigue | 9.2/10, High risk | 7.8/10, Tired |
| Efficiency | 4.6/10, Average | 5.2/10, Average |
| Combined risk | 9.4/10, High risk | 7.7/10, Tired |
| Relief innings, last 7 days | 35.7 | 27.0 |
| Back-to-back arms | 9 | 6 |
| 7-day ERA | 4.79 | 4.00 |
| 7-day WHIP | 1.32 | 1.22 |
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 1.7 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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