MLB matchup analysis

White Sox vs Guardians Prediction, Odds and Model Pick

Monday, September 14, 2026 at Progressive Field · 6:40 PM ET

Pass

LyDia decision: Pass on White Sox vs Guardians

Lab Rating
6.5/10
Model lean
Guardians 53.1%
Market probability
53.9%
Model edge
-0.8%
Best moneyline
-125
Sportsbooks checked
5
LyDia model
53.1%
Market
53.9%

The case for Cleveland Guardians

Late-inning bullpen advantage
Chicago White Sox relievers have a 5.54 ERA over the last 7 days; Cleveland Guardians relievers have a 2.10. If this is still close after six innings, that gap favors Cleveland Guardians.
Bats are hot: +0.021 wOBA
Cleveland Guardians is outhitting its own season form over the last 15 days. Recent form is context, not a model input, but it points the same way here.

The case for Chicago White Sox

The case is thin
The model finds little going Chicago White Sox's way — it trails on the pitching plan, bullpen, and recent form. The main path to a Chicago White Sox win is variance.

Why it is not official

Below the 61.0% official gate
Win probability is 53.1%. LyDia does not make a game official below 61.0%, no matter how good the price is. This is a value spot, not a high-confidence winner.
Setup quality below the bar
Lab Rating is 6.5/10, under the 7.2/10 required for an official pick.

Why the setup score is what it is

Conviction: 0/10
LyDia's own win probability for Cleveland Guardians (53.1%) is close enough to a coin flip that the rating credits little or no conviction -- credit only starts above 55%.
Pitching plan: 30.67/40
Gavin Williams rates 73 on LyDia's pitcher score, judged on its own merits (50-80 is the credited range). That is a strong start on its own, and it earns most or all of the available credit here.
Offense: 33.9/50
Cleveland Guardians's recent offensive form clearly outpaces Chicago White Sox's over the tracked windows.

Why the price is what it is

Team strength: 50.3%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Cleveland Guardians 50.3% to win. Everything below moves the price from this starting point.
Pitcher score gap: 1 points
The pitcher-score gap favors Cleveland Guardians by 1 points. This is the biggest single mover of the price -- a large gap moves it a lot, a small gap barely moves it.
Bullpen adjustment: +0.087
The bullpen-fatigue gap between the two pens nudges the price toward Cleveland Guardians. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 50.3% -> 53.1%
Team strength alone had Cleveland Guardians at 50.3%. After the pitcher and bullpen terms, the price is 53.1% -- the same number shown as Model Lean above.
The verdict LyDia passes. This is a bullpen game -- no confirmed traditional starter, so LyDia does not publish an official pick here.
Read the full model output

This is a bullpen game -- no confirmed traditional starter, so LyDia does not publish an official pick here.

Game information

MatchupChicago White Sox at Cleveland Guardians
DateMonday, September 14, 2026
First pitch6:40 PM ET
VenueProgressive Field
Starting pitchersSean Newcomb vs Gavin Williams
WeatherGame-time forecast: 67°F, 0% precipitation chance, 4 mph wind from NE.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Sean NewcombWhite Sox · LHP
vs
Gavin WilliamsGuardians · RHP
MetricWhite SoxGuardians
Pitching planOpener / bullpen gameTraditional starter
Expected innings25⅔
ThrowsLR
LyDia pitcher score (higher is better)7473
ERA (lower is better)2.773.78
WHIP (lower is better)1.141.09
K/9 (higher is better)8.312.1
K-BB% (higher is better)13.9%25.7%
K% (higher is better)22.6%33.5%
BB% (lower is better)8.7%7.8%
BB/9 (lower is better)3.22.8
HR/9 (lower is better)0.21.4
Ground-ball rate51.8%50.8%
Fly-ball rate48.2%49.2%

Pitching plan edge: LyDia gives Gavin Williams the edge over the Chicago White Sox pitching plan (1 points on LyDia's pitcher score). Sean Newcomb is projected for only 2 innings, with the Chicago White Sox bullpen covering the rest -- this compares Gavin Williams's own line against the Chicago White Sox blended starting-pitcher-and-bullpen quality, not two starters directly.

Blended read: For the Chicago White Sox, the bullpen is projected to throw more of the game than Sean Newcomb (about 2 innings for the starter), so LyDia grades that side on a whole-game effective ERA of 3.76 rather than Sean Newcomb's own 2.77. Whole-game, that is 2.97 for the Cleveland Guardians against 3.76 on the other side, so the blended read leans Cleveland Guardians.

How to read this: the scorecards above name the starters; every number lives in this table.

Strikeout Projections Full strikeout projections →

Sean Newcomb strikeouts
1.5 LyDia projected Ks
No strikeout line posted when this page was generated
Gavin Williams strikeouts
8.8 LyDia projected Ks
Qualifying projection: OVER 7.5K · +1.3K difference
Market 7.5K · O -154 / U +121 · 6 books

Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.

White Sox are 3-7 in their last 10 and averaging 3.1 runs per game over the last 15 days; Guardians are 6-4 in their last 10 and averaging 4.9 runs per game over the last 15 days. Season run differential separates them by almost nothing (+0.23 against -0.05).

MetricWhite SoxGuardians
Last 103-76-4
Last 10 by venue (away team on the road, home team at home)4-6 on the road5-5 at home
OPS, last 15 days0.6360.742
wOBA, last 15 days (hot/cold read)0.2890.327
Runs per game, last 15 days3.14.9
K% last 15 days (lower is better)25.9%17.8%

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 daysWhite SoxGuardians
OPS0.693 (-0.028 vs szn)0.714 (+0.025 vs szn)
Runs per game4.00 (-0.664 vs szn)4.70 (+0.604 vs szn)
wOBA (model offense input)0.311 (-0.008 vs szn)0.316 (+0.009 vs szn)
K% (lower is better)24.8% (+0.7% vs szn)18.4% (-2.7% vs szn)

Over the last 30 days the Guardians have been the better offense, 0.316 wOBA to 0.311. They are running hot against their own season line (+0.009 wOBA). White Sox are striking out at 24.8% over the window — something the opposing starter can lean on.

Season profile

Full Stats page →
MetricWhite SoxGuardians
Record76-7376-74
Run differential / game (team quality)+0.23-0.05
Runs scored / game (offense, season)4.664.10
Runs allowed / game (defense, season, lower better)4.444.15
Season OPS0.7210.689
K% season (lower is better)24.1%21.2%
OPS vs opposing hand (season)0.7150.659

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.

Every team on today's slate, on any two axes you pick. White Sox and Guardians are highlighted.

White Sox
Combined risk
8.7 High risk
Fatigue
8.0 Tired
Efficiency
3.7 Below average
Guardians
Combined risk
5.8 Normal
Fatigue
6.7 Tired
Efficiency
6.8 Effective

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.

MetricWhite SoxGuardians
Fatigue8.0/10, Tired6.7/10, Tired
Efficiency3.7/10, Below average6.8/10, Effective
Combined risk8.7/10, High risk5.8/10, Normal
Relief innings, last 7 days37.330.0
Back-to-back arms23
7-day ERA5.542.10
7-day WHIP1.630.93

Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.

Run total projection

Full Totals Projections →
LyDia projection
7.6
Market total
8.5
Projected away runs
2.0
Projected home runs
4.8
Over price
-102
Under price
-102
Chicago White Sox team total
2.0 projected
Line Not available · O Not available / U Not available
Market line pending
Cleveland Guardians team total
4.8 projected
Line Not available · O Not available / U Not available
Market line pending

The model projects 0.9 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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